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Woodlice

Woodlice

Woodlice are crustaceans related to slaters, shrimps, lobsters and crabs. They are the only crustaceans that have properly invaded land, without the need to return to water in order to breed, although they tend to be restricted to fairly damp places. Woodlice are quite harmless and in fact beneficial in their proper habitat by promoting the breakdown of dead vegetation and organic matter in the soil. They normally live outdoors but shun the light by hiding under stones, logs, loose bark, leaf-litter etc., or in hollow tree-trunks - almost anywhere that is fairly damp. However, they frequently come indoors and may take up residence inside buildings, surviving in any dark, damp places they can find. When large numbers of woodlice are found indoors, perhaps clustered in wall crevices or under skirting boards etc., it is always worth checking for excessive dampness in these places - just in case there is a structural problem with the damp proofing or damp course. Woodlice are easily controlled with insecticides or silica dust.

Your Questions Answered

Submit your question about Woodlice below. Please note that all questions are moderated so your question will not appear straight away.

Question


Q.
Do woodlice harm plants in garden tubbs

A.

No, woodlice eat decaying figrous material and will not harm healthy living plant tissue.


Q.
Do woodlice omit a smell? my son's bedroom has a very funny smell coming from the window, I think, and it was the same this time last year. upon closer inspection I found lots of them aroud the frame, is it these that are causing the smell?

A.

Almost certainly. Woodlice live in damp environments and rotten window frames are ideal for them. They eat the decaying wood fibres and have safe, humid living conditions to live and breed in.

They are very easy to kill with any insecticide spray or powder, but remember that powders do not work for long in damp conditions.


Q.
Woodlice are inside the stems of my Lupins eating them. What can I do to get rid of them?

A.

Bendiocarb (insectaban) will kill woodlice as should any product bought to eradicate ants.  They can do terrible damage to plant stems, particularly young seedlings. Have a thought about what material is around the lupins.  A natural mulch type will be attractive to woodlice as they eat decaying matter.


Q.
HOW TO STOP WOODLICE EATING STRAWBERIES IN GREENHOUSE

A. We suggest you sprinkle Oa2ki Powder around the plant and obviously remove any rotting leaves or fruit.


Q.
Background information on woodlice

A.

Please check out the woodlice section on the website clicking on all the different tabs.  There is a lot of information there and should answer any questions you have


Q.
Woodlice appear on the windows in the winter. I clean it every day but next day they are there again. I have plastic window, but the glass is wet every morning. What can I do to get rid of them?

A.

I would suggest a product called Dethlac laquer, which we sell on the site for £4.25.  It can be sprayed on  any firm, non absorbent surface (such as a window sill) where it dries to a hard clear film  leaving a toxic spray line.  Any insect crossing the line will die within a few hours.  One application remains active for months even if the surface is washed.

However I would advise you to tackle the issue of where the woodlice are entering the house.  It is possible they are coming in around the window.  Any entry points should be blocked up using decorators caulk or similar product


Q.
We have UPVC windows and the house is not damp (checked with damp meter) yet we get woodlice around the edges of the carpets. They usually die quickly but we cant find an entry were they are getting in. We are not overun by them but I want rid asap. Whays the remedy please.

A.

Hello.  I wonder if you have a cellar under the room in question.  This would be an ideal harbourage for woodlice and the house would not have to be damp at all.  Obviously with fitted carpets it's not an option but sealing around the lower edge of the skirting boards with an expanding foam is a good idea if the opportunity arises.  In the immediate, try Residex P dust.  It is a residual insecticide which means it stays effective for a period of about a month.  Dust it around the edges of the room and reapply about a month later.  It is designed for indoor use and is safe for domestic applications.  A 300g bottle would be about right.


Q.
I have woodlice eating the live healthy green leaves of my pansies. If they only eat decaying matter, why are they eating healthy leaves?

A.

Woodlice do have a preferred diet of decaying matter, but there are instances of these creatures eating healthy plant tissue, usually when there is some imbalance in the garden.  This results in an explosion of the woodlouse population and the tendency to turn to miscellaneous plants.

The imbalance can be caused by planting too many of the same types of plants, for example all rose or all dahlia gardens.  Adding a variety of plants encourages a variety of insects which keep the woodlice in their place.

More often than not the imbalance is due to an overuse of pesticides and fungicides. Woodlice are one of the insects that bounce back quickest after pesticide use and they can then start to fill the niches of other insects.

To discourage the woodlice from the healthy plants make sure there is plenty of mulch in the garden as they will undoubtedly eat that in preference to the new plants.  If you want to get rid of them diatomaceous earth spread over the areas they frequent will have some effect because it will cover their bodies as they crawl over it and prevent them taking in moisture which they need to survive.


Q.
There is a large amount of woodlice in my front gravelled garden. They are coming into my cellar and most appear to be dieing almost straight away.we have seen a few wandering over the floor in the living room and kitchen. Is there any way I can exterminate them in the garden before they reach and spread around the house?

A.

Woodlice are harmless creatures and beneficial to the breakdown of the soil in heir rightful environment.  They are only attracted by damp places hence their entry into your cellar. To deal with the problem inside the house you could spray a residual lacquer such as Dethlac where the woodlice congregate.  This lacquer sets hard and forms a barrier that lasts for about four weeks before reapplication is required.  It might be an idea to seal under any skirtings with expanding foam if the opportunity arises to prevent the same thing happening in future.   It is unusual to find woodlice in gravel but it its impossible to eradicate them in the garden as any powders or dusts that you could put on the gravel would be ineffective if they were to fall victim to rain or wind.


Q.
We live in a rented bungalow which is very damp, there are little gaps in the windows, my son has a patio door for his bedroom, and there are LOTS of woodlice gathered there all the time, I've filled in the holes I can see, but there are still woodlice coming in. Our landlady does not want to hear us and we can't afford to move out, is there anything else we can do? or do we just have to suffer until we can move? Also do they go on paper and books? as I have found LOTS of little tiny bugs on books we have and papers, even when we have put them away in boxes. This is really getting us down! Thanks in advance for your help!

A.

It sounds as if you have two problems, woodlice and booklice.  Both are associated with damp and while ever the damp persists the problem will.  With all the rain we have recently endured it is not surprising.  Filling visible gaps is a start but you can be sure the blighters will get in much tinier gaps that you cannot see.  The best form of defence is drying the place out asmuch as possible, maybe you could invest in a dehumidifier or fans to dry the air out.  Central heating is a way of drying things up if you want to use it this time of year.  As for products that you can use - Insectrol is a permethrin based insecticide that is particularly effective against woodlice and will work on the book lice as well if you can get it onto them.  Otherwise Dethlac may have some effect and will work for a few weeks as it dries to a hard lacquer.  Keep vacuuming the areas where the insects are and rest assured they are not harmful in any way


Q.
will woodlice damage carpet

A.

No.  They are a nuisance that is all.  They may cause a problem to houseplants though.  Treat the area where the woodlice are with an insecticide suct as insectrol or a residual one such as Dethlac (only suitable for hard surfaces though)


Q.
I have moved into a new house and the previous owners had part of the garden covered in a fabric that had woodchip on top it is all old and a mess so i want to remove it but when i started to i realised that underneath is over run with woodlouse how can i deal with this as i dont want them running all over or getting into my home.

A.

A garden such as yours is an ideal environment for woodlice.  We get concerns from people about woodlice eating plants and it is often due to the wood chippings that are fashionable to put on borders.  You need to air the garden by doing as you are, lifting all the old woodchip and letting it all dry out.  The woodlice will naturally disperse once their favoured environment is gone.  I don't think you will find them invading your home but if you notice some around doorframes or windows, try spraying with a permethrin based spray such as Insectrol Insect Killer.  


Q.
I have woodlice in my converted loft.I dont know how to find entry point.Any advicewould be appriciated.

A.

It is difficult to stop woodlice entering if you cannot find an obvious entry point.  The best advice would be to spray a residual insecticide such as Dethlac around skirtings and door and window frames.  The woodlice will die when they come into contact with it and it stays active for a number of weeks.  Just keep it to hard surfaces.  The woodlice that have invaded can be simply vacuumed up


Q.
I have a plant and the woodlice seem to b living in the leaves (i don

A.

Woodlice as we all know generally feed on decaying matter, but they are known to eat houseplants.  Try applying diamotaceous earth to the soil around the plant as this will dehydrate the woodlice which will kill them.  Alternatively, people have found success with inserting a 'fence' of some kind made of say a piece of plastic drinks bottle.  I'm told the woodlice don't climb over the barrier.


Q.
the carpet has discoloured where the woodlice are. is it because of them

A.

I've never heard of woodlice discolouring a carpet.  Could it be any product you have been using to try to get rid of them?


Q.
Do woodlice damage carpets

A.

No, not that I am aware of


Q.
we have hundreds and hundreds of wood lice in the front garden, they seem to appear in there droves when we mow the lawn. We have vents in the outside walls of our 1890's house which they go through, although we dont seem to get any inside the house could they be doing any damage? Is it worth trying to get rid of them.?

A.

Woodlice are actually beneficial to gardens as they produce compost and overturn the soil.  They can be known to eat young seedlings though so that can be a nuisance. If they are just in your garden I would be tempted to leave them.  Even if they enter the home they are not classed as a household pest because they do no damage, nor do they spread disease


Q.
We have a very old cottage and There is some damp after this summer's rain. We find numerous dead woodlice every morning around the carpet edges, especially on the stairs. The last few days they are surrounded by tiny white specks. Could these be eggs? Being an old cottage with many cracks and spaces around floorboards I am not sure what to do. Have used a spray but still have a graveyard every morning.

A.

It might be worth considering a smoke bomb which contains permethrin an insecticide known to be particularly effective against woodlice.  Place the smoke bomb on a foil plate or similar and light it.  All windows and doors should be closed in the room and any pets removed or fish tanks removed or  covered.  The smoke generated will infiltrate every nook and cranny that is impossible to reach with a spray and kill the woodlice.  Keep the room sealed for a couple of hours if possible and then air well.  The smoke bomb leaves no residue smell or mess and it should cure the problem.  We have two possible sizes in stock, the mini smoke for small areas and the supa smoke for much larger areas.  The white specks you mention will not be eggs but could be tiny baby woodlice


Q.
We have found woodlice around the edge of our fitted carpets with the carpets being extensively damaged. However there seems to be white larvae sacks left attached to the carpet and under the feet of furniture. Are these the residue of the woodlice and how can we effectively treat this problem ?

A.

The answer to a woodlouse problem is to cure the conditions attracting them - namely rotting wood.  They are often an indication of a damp problem even if it not evident.  They do not however damage carpets. The other solution is to block where they might be coming in.  They do not deposit egg sacks, the babies develop in what is called a marsupian which is a part of their exoskeleton that overlaps below the abdomen.  The young are 'born' from there.  I wonder if the white sacks you refer to could be the cuticle of young woodlice that have moulted as they grow.  It is difficult to say without seeing it.  If the woodlice are a major problem and you want a treatment a smoke bomb could be the answer.  THis sets off permethrin smoke which will infiltrate all the nooks they hide in and kill them.  It will not leave any smell or residue, but the room will need to be aerated for a few hours following treatment.


Q.
There seems to b an influx of woodlice on my potato plants and they seem to be eating the leaves. Im happy to not exterminate them but would like to encourage then into my compost heap. Any suggestions? Or failing that how can i getrid ofthem without using an insecticide as i dont want chemicals on plants im planning to eat!

A.

Woodlice will happily munch on young plants.  I don't know how to attract them to your compost heap.  If the compost is the right wetness they should find their way there on their own.  To get rid of them around plants I would suggest diatomaceous earth which is pesticide free. We sell this as Oa2ki powder.  The only problem with using it in the garden is that it wants to stay dry to be effective, so will need reapplying if there has been rain. Also I belive it is better to put it liberally around the base of the plant rather than sprinkling it over the leaves.  The DE will eradicate the woodlice by drying them out.


Q.
Woodlice ate my tiny spring cabbage which have just appeared. I believe they are also eating my much larger savoys. It is not pigeons as they are netted, it is not catapillars as I have looked for them. What else could it be?

A.

woodlice will eat the young shoots of plants, but it could also be slugs or snails. If it is woodlice avoid using mulches as it is the ideal habitat for them


Q.
I have an ash tree which has alot of woodlice will this eventually kill the tree or can i treat it to save the tree

A.

Woodlice will not be killing the tree.  THere is without doubt another problem such as a fungal infection in the trunk that is causing the wood to soften and this is attracting the woodlice.  Maybe a tree surgeon would have a treatment plan, but maybe the tree is beyond saving


Q.
why are the woodlice eating my apples on the tree

A.

Highly unlikely they are, fallen and rotting perhaps.  Look for another culprit.


Q.
Do woodlice damage good wood, ie wood that is not rotten ?

A.

This would not be considered typical woodlice behaviour


Q.
I cannot sow seeds straight into soil in raised beds. Nothing appears, not even the tiniest sight of a seedling that may then get eaten. Rotting wood surrounds were replaced some years ago with plastic but still no luck. Might it be wood lice?

A.

Many insects eat seedlings, woodlice being one of them.  Millipedes are known to eat whole or partial seeds but you would expect to see some germination as millipedes damage seeds in a random way. It could also be mice.  They too like seeds especially larger ones like peas and beans.  Also they tend to take seeds in sequence which would explain maybe why a whole row disappears


Q.
Everyday I find over turned dead woodlice. I live close to the city so I am prone to mice and put bait down for them, but I keep finding these woodlice. Are the mice killing them and not eating them, or do they die of their own accord?

A.

Mice are herbivores by preference, so if there is another food source available (which there obviously is as they are in your house) they will not eat woodlice. The woodlice are more likely dying in the dry atmosphere of your home


Q.
Would woodlice eat away a pure wool carpet

A.

No, more likely to be carpet beetle.


Q.
We have what appears to be woodlice on our carpets. We live in a flat but the double glazing is not very good with a lot of condensation which results in water dripping to the carpet. I've been continously vacuuming the hosue for 4 days but can't get rid of them. I have a 3 year old child so am very worried. What product can I use which is safe with kids since my child walks and plays on the carpet.

A.

You need a product called Oa2ki which is a natural way of controlling pests and perfectly harmless to children.  It comes in powder and spray form and will kill the woodlice by dehydrating them.  The powder needs to be kept dry, so the spray would be better for you.  Obviously resolving the dripping water problem is paramount to eradicating the problem.  Be reassured though that although irritating, woodlice are of no health risk at all.


Q.
I have found woodlice in my bedroom and hall way. I just bought the house in the summer and it is a renovated house. Where would be the most probable places to look for excessive humidity that would bring the woodlice in?

A.

The most common places for woodlice to enter is around window ans door frames where water could be getting in.  The best option is obviously to find the source of the problem and eradicate that.  In the meantime try applying a residual laquer such as Dethlac around the skirtings and frames (hard surfaces only) to kill the pests on contact


Q.
I have a mediterranean palm planted in my garden. The area around it is covered with gravel. I have noticed stunted leaves all summer and on closer inspection can see the inside of the growing part of the plant is crawling with woodlice. I should imagine standard ant/woodlice killer will damage/kill the plant if I squirt such a toxic powder into the inside of the plant. What can I use to get to kill them and do you think the gravel attracts them in the first place. We have mostly hardlandcaping in our garden. Last year I lost a chusan palm to woodlice. Help!!!!

A.

The only thing I can suggest is diatomaceous earth.  We have it on our website as Oa2ki powder.  As it is made from purely natural ingredients it will not harm the plant, but should have the desired effect on the woodlice by dehydrating them. It is most effective however if kept dry but we do stock a trigger spray version if that is preferable. Please be sure to reapply as the non-toxic element means control could take longer


Q.
Woodlouse are coming from behind my bath panel, if I remove it am I likely to find a nest?

A.

Possibly.  Woodlice love rotting, damp wood or foliage.  It is possible there is a leak somewhere behind your bath panel that is creating ideal conditions for them.  Rectify that and they will make their home elsewhere


Q.
have woodmites in home have 2 dehumidifiers and hygrometer, but humidity still sitting at 53% mainly at night etc,we have also used strong smokebombs in house,what are the chances of them coming back,as i know humidity should be under 50% to even be in with a chance?

A.

Woodlice will always come back where the conditions are right.  You are doing all the right things, but unless the humidity improves you will always have a problem


Q.
We have recently moved into a rental property and find we have woodlice and silver fish in our kitchen cupboards. I realise they like damp dark conditions - the landlord wont do anything about it. I have tried to put as much as I can into airtight containers but can these creatures get into the fridge, cereal packets etc......

A.

Yes these creatures like damp, so a sprinkling of diatomaceous earth which will dessicate them should do the trick.  Look for Oa2ki powder on our website.  If you put it where the critters are it should dry them out and kill them.  It is a natural product so safe for kitchens, but obviously don't sprinkle it near exposed food.  Curing the damp is the only way to eradicate them period


Q.
we find them on our living room carpet normally dead but we can not find any signs of damp

A.

They are probably just finding a way in from outside and then drying out and dying in the warmth of your home


Q.
I have woodlice in my bedroom can you please tell me how to get rid of them.I have some damp in my bedroom and rent a flat from council but they have been useless.

A.

This is a common problem in rented properties that are often damp.  Unfortunately whilever you have damp you are likely to have woodlice too.  Spray the offending insects with an insecticide. One that contains permethrin would be effective. You could use a barrier spray such as dethlac, which will continue to kill the woodlice as they crawl over it. The best you can do is try to reduce the damp. Perhaps you could invest in a dehumidifier ?


Q.
My friend lives in a 70's bungalow in North Wales where there is an infestation of woodlice. They are regularly coming through the skirting board and into the bedroom. He only moved there in January so it could be due to the place being damp when it was left empty between tenancy? Is there a way of getting rid of them please? He has asked the rental agent that is responsible for the bungalow to get the place checked out for damp in the floorboards but he has never come back with response. Please could you advise? Thank you.

A.

You are correct the dampness will be attracting the woodlice and as the bungalow warms this will hopefully impove the situation.  However, if the property is old it may have an inherent damp problem.

I would recommend using two of our products in conjunction, Insectaban and Dethlac.  The first being in powder form and the second an aerosol spray. The Dethlac is a residiual spray that will remain active for several weeks, but must be used on non porous surfaces.  The Insectaban is in a powder form.  If you have any gaps between the skirting and the floor then this is the place to get the powder.  You could use one of our simple dusters to apply this deep into the crevices.


Q.
Bought a house which had been extended in the living room and kitchen.keep getting live woodhouse crawling in both these rooms.Could the flooring not have been sealed properley thus damp underneath?.The room is fully carpeted and kitchen laminated so have no idea what lurks underneath.Or are they just getting in from outside the gardens have woodchip and are lots of hedges and plants.

A.

Either is a possibility but one thing is for sure.  Woodlice only appear where the conditions are right and that is in areas of dampness.  To eradicate them means removing the damp wherever that is.  Certainly, woodchip and lots of moist planters provide an ideal environment for them so eliminating that is the easier option. People seem to have a great aversion to woodlice, but they are perfectly harmless and carry no threat to health, so the odd one every so often should not cause concern.  If you want to kill the ones you see, try a spray containing permethrin such as insectrol or a powder such as Residex P for carpeted areas.


Q.
I grow carrots in soil + compost in stacked tyres to prevent carrot fly, which works well but, increasingly I'm finding the soil riddled with woodlice which seem to be eating into the carrots towards the end of their growing period.So before I re-fill my tyres for this season I want to do everything I can to eliminate/prevent woodlice causing the same problem this year. Any ideas?

A.

Woodlice are attracted by any dead and rotting material, mainly wood.  Is your compost one of your own and does it contain a large amount of wood debris?  This could be what is attracting them.  You would not normaly find woodlice in soil only.


Q.
Can woodlice damage carpet

A.

No. Woodlice only clean up rotting and decaying matter


Q.
I have a cactus plant that has woodlice living in the soil, this seems odd as it!s a cactus plant and so is fairly dry. Will it harm the cactus?

A.

The woodlice would not normally harm healthy plants but having said that, I know that they are often found in the hollow stems of some plants. Best to remove the soil with the woodlice and replace it with woodlice free soil


Q.
Have been told we have silver moths eating our wool carpet we find white things in those areas. How do we get rid of it is there a pesticide spray we can spray the carpet with in the affected areas?

A.

I think you are describing the clothes moth.  I would suggest you try a Blitz Kit for Clothes Moth.


Q.
My home is only 10 years old but we have wood lice in the conservatory. We don't have any damp at all but these things drive me nuts. Please help

A.

Woodlice are attracted by damp so although you say you have no damp in your home, the environment must be right for them to be there.  Maybe you have a very overgrown garden or a lot of mulch or vegetation around  the house? This would be a great habitat for them and they would come indoors looking for shelter.  I would suggest a barrier spray such as Dethlac that can be sprayed upon the entry points (door or window frames, hard floors, along skirtings etc.  THis spray contains an insecticide that will kill the woodlice on contact (although it will take a few hours for them to actually die). It remains active for about 2-3 months once applied and will not wash away during cleaning. 


Q.
woodlice are all over the bathroom and there coming from under the bath .their not downstairs and we dont have a base ment. we have tried the spray and still they still come last summer we had nearly 35 dead woodlouse in the bathroom .our house is not damp amd is not humid its just right .

A.

Although your house is not damp it is very likely there may be moisture beneath the bath.  Maybe there is a slight leak? It would be worth investigating.


Q.
I have moved into a cottage dating at least 100 years old, its made of granite walls! I have slaters found in the cottage albeit mostly dead and dried up, however every night they are crawling the outside wall, in large numbers! What can I do to control this? They only appear at night but its ghastly and they scare me lol, please advise!?

A.

Woodlice are completely harmless, but in large numbers can be disturbing.  If there are a lot of stones around the walls of the property, these could be harbouring the woodlice as could any plant matter.  Have a go at clearing any vegetation or logs/stones that are close to the walls.  You could spray a barrier spray such as Dethlac around the perimeter of the house and any woodlice crossing it will subsequently die.  (This may take a few hours)


Q.
My studio flat is two years old and has a proper damp course and insulation I am constanly seeing half dead and dead woodlice at the edge of the carpet emerging from underneath the edges. why would this be?

A.

Woodlice will crawl into a house irrespective of damp courses, they may just be looking for shelter.  To eliminate the problem it would be a good idea to seal up the gap beneath the skirting with some kind of expanding foam. That should stop them coming in


Q.
Please help I have an infestation of around 100 woodlice in my garden and they have started coming into my house what can I use to kill them without hurting my dog.

A.

The only product i can suggest is diatomeaceous earth. Apply it to the soil where the woodlice are a problem and it will abrade their outer waxy layer and cause them to dry up.  As this is an organic product it will be of no harm to your dog.  Other things to do are to dry out the areas where the woodlice are by removing what they like to eat (rotting timber, rocks, bricks, compost, weeds, mulch etc) and exposing it to the sun.  They will soon move out if the damp conditions they need are removed


Q.
cannot identify place of entry in modern barn conversion residence. Seasonal visitation by wood lice in upstairs and downstairs rooms. How do we control John GRant johngrant6464@gmail.com

A.

Woodlice can enter a property through any small crevice, so locating an entry point is not always easy.  Invest in a barrier spray such as Dethlac and treat any hard surfaces where the woodlice are apparent (floors, skirtings, door and window frames are good). After coming into contact with the insecticide, the insects should die.  They will not die immediately, but will do after a few hours


Q.
Ihave recently found woodlice in my house only in ones walking across the laminate floor. I can find no signs of damp anywhere.I have tried to seal any small opening they might be using to get in.As i understand it they are no threat to the struture but it is a concern.There were some in the conservatory so i have sealed the floor area edging and hope this works.Is there anything else i can do or is there no need to worry.

A.

There really is no need to worry if you are only seeing the odd one.  They are just coming in looking for shelter.  If you want to apply an insecticide I would recommend Dethlac, a barrier spray that remains active for 2-3 months and will kill the woodlice after contact with it. (It may take a few hours).


Q.
We built a new 3 storey house five years ago with underfloor central heating. We have wood lice in the lounge, kitchen, sun room, utility room and the attic! There is no damp, please help, I have also discovered silverfish in the kitchen and bathrooms. I've laid powder around the skirting boards which appears to be working but how do I eliminate the problem as obviously the powder is unsightly on oak skirtings! I would appreciate some advise.

A.

Woodlice come indoors to find shelter in winter and early spring.  There may not be damp in your home, but it is possible they are finding the right conditions in your garden and just straying indoors.  Do you have a lot of vegetation around the house, or mulch on the flower beds? Are there a few plant pots or tubs close to the house that could be harbouring them? They will also like to hide in sink areas in kitchens and bathrooms.  Silverfish are equally partial to damp.  Maybe they appear where water often spills, such as around a bathroom sink or a dog bowl in the kitchen.  You are doing the right thing by applying insecticide.  If you don't want the powder, try Dethlac which is a spray that sets hard and is invisible but has the insecticidal properties. Only use on hard surfaces and it can be applied outside too.  Spray it into crevices where you think the woodlice are hiding, but don't spray any electrics.  If there are a lot of woodlice in the attic, it is the ideal place to let off a fumer. This little device has a touch paper that you light and it releases insecticidal smoke. It doesn't spark so there is no danger of fire but do follow the safety instructions


Q.
My wooden porch was damaged by woodlice and woodworm, so I have just had a new wooden floor put in replacing the old (tongue and groove planks). I now want to paint or spray the new wood to prevent and deter woodlice and woodworm. Should I apply an insecticide fist or a wood sealant fist then an insecticide? Can insecticides be painted over with any kinf of paint or sealant? Also, can an insecticide be applied over any paint or sealant?

A.

I would apply an insecticide. Most insecticides can be painted over, varnished or stained once dry and it will give you peace of mind


Q.
I have been finding woodlice on my worktop in the kitchen and sometimes in the kitchen sink, this there something I can use to prevent them without causes danger to food preparation?

A.

The best thing to use in food preparation areas is Oa2ki spray as it contains no poisons at all.  It is a natural product that works by drying out the insect leading to dehydration and death.  

For non food preparation areas, Dethlac is a good thing to use as a deterrent.  It forms a hard barrier that kills the insect once it has crawled over it.


Q.
I have a lot of woodlice on the ground floor. There is no damp in the house but I suspect the underfloor foundations are providing a suitable habitat for them. Is there something I could spray through the airbricks into the foundations to control them. Thanks for your help

A.

Not sure what sort of area you want to spray but Insectrol is a great residual insecticide with permethrin as its active ingredient.  Permethrin is particularly effective against woodlice.  This could be sprayed through the air bricks and repeated on a monthly basis.


Q.
i have just moved into a new house and over the last few weeks have had a large amount off woodlice in my bathroom and few in my kitchen my kids are scared to go near the bathroom how can i get rid off them?

A.

The woodlice may well be there because there is some damp in the bathroom.  This may well be worth investigating, but in the meantime, use a spray such as Dethlac and apply around the places the woodlice seem to be getting in.  It will dry hard on any hard surface and will kill the woodlice after they have crawled over it.  It remains effective for months so after one application you don't need to worry about re-applying.  You do need to try and find the source of the woodlice in order to eradicate them altogether.  If everywhere is dry and bright the woodlice will stay away.  Tell your children that the woodlice are not harmful at all so they don't need to be scared.


Q.
I have a lower garden surrounding my house and its infested with woodlice. Overnight they climb up to the pool area and die there since I have applied the yearly pesticide. However I am now left with the job of an hour sweeping them every morning. How can i get rid of them from the garden. Your help would be greatly appreciated as they are a real nuisance. Thanks

A.

Getting rid of woodlice from a garden is no mean task as you can well imagine.  However I suspect there could be things you could do to reduce their numbers.  Make the garden as unappealing as possible to them.  Remove any bark or mulch that may be on borders, clear up any dead or decaying matter such as wood or leaves.  Remove plant pots and planters that may harbour them underneath.  In other words dry the garden out and get as much sunlight there as possible.  Diatomaceous earth is an option for sprinkling over the places where the woodlice congregate most as this will dehydrate them and kill them.  The area to be treated does need to be dry though to be most effective and it will need re-applying quite religiously.  If there are any hard surfaces in the bottom garden, try spraying Dethlac as it is very effective outdoors and isn't victim to the rain.


Q.
how do you get rid of slaters in your house

A.

They come looking for shelter but are attracted to damp, moist environments.  If you have damp areas in your home you should first eliminate them and the woodlice will go elsewhere.


Q.
Do wood lice eat daffodil and tulip bulbs

A.

Woodlice normally only eat decaying matter but have been known to nibble on young seedlings.  It is possible as the bulbs are under the soil that they could take a fancy to them


Q.
are woodlice negatively or positively phototaxtic

A.

Woodlice are negatively phototactic, they move away from light. They have light receptors that are sensitive to illumination.  Dark places tend to be damp, just the environment the woodlouse needs.


Q.
Hi, I often find a number of dead or dying wood lice in my holiday home cottage which I visit every couple of weeks. I cant help thinking that it started not long after I had a delivery of fire wood that is stored in my living room. However most of them I find in the kitchen next to the living room. There are some in the living room but not as many? is it likely they came in with the wood.? It was dried and cured wood and I handled every log when I stacked them and didn't see any signs then? The kitchen is slightly damp under the dish washer too Thanks

A.

As I assume you had no problem before the logs arrived it is logical to assume they are the source.  Once introduced, the woodlice are probably wandering around looking for a nice damp, dark place to lurk - the kitchen probably provides this in preference to the living room.  An insecticidal spray such as Dethlac or Insectrol will take care of them and both have a residual effect so will last for many months.  These should not be sprayed around food preparation areas or near utensils, so be careful in the kitchen.  Keep to skirting boards and door frames.


Q.
I have a lot of slaters appearing on the floor of my small front porch which is uPVC/double glazed with a solid wood floor resting on small joists which themselves rest on polythene sheeting (the latter constructed by the DG team). There is no obvious dampness but I wonder if it is caused by poor ventilation as there are no trickle vents in the DG units or is there a problem with the floor. My view is that prevention is superior to cure and there must be a cause. Can you offer any advice please?

A.

It is difficult for us to assess what may be the cause of woodlice in a place that is not obviously suffering damp.  We can supply products to eradicate the woodlice, such as Dethlac lacquer which is a residual insecticide that can be applied to any hard surface and will kill the woodlice soon after contact.  Poor ventilation would definitely provide suitable conditions for woodlice and airing a problem area often solves the problem.  However someone in situ is best placed to establish what the cause of the problem might be


Q.
How do I get rid of woodlice in vegetable patch

A.

The best thing to use is diatomaceous earth.  It is totally organic so is safe to use around food crops.  Sprinkle over the soil and around the plants in question.  The woodlice will dry out and die.  As it is a non-chemical product it needs to be reapplied regularly and will take a little longer than chemical means to kill your pest.  Try to keep dry in order for it to work effectively although this is difficult in an outdoor environment.  If it is washed away by rain, wait for everywhere to dry out and reapply.


Q.
We have a problem with woodlice upstairs in our house (mainly the bathroom) every year once the milder weather comes round. We find sometimes 10 a day, some we see climbing up our hall curtains. There are often black 'specks' under our toilet cistern (which seems to constantly have condensation dripping from it, presumably this is what's keeping the area damp for them), the specks are also on the sink and bath & only seem to appear when the woodlice are around. I'm desperate to get rid of them but we have a 3 year old so I wouldn't like him breathing in/touching anything harmful. Anything you can recommend? Any advice much appreciated!

A.

Don't really know what the black specks could be, although it could be connected with the dripping cistern.  As for the woodlice, a good product to use would be Dethlac.  It contains permethrin which is the chemical used for woodlice and other beetles, it sets hard when sprayed on a hard surface and lasts for a couple of months before needing reapplication.  It is odourless and colourless and totally safe for children and pets once dry.  This cannot be used on curtains and soft furnishings though. A steamer is a useful tool for getting rid of bugs on curtains and other soft furnishings but hopefully if you can kill the woodlice in the bathroom as this seems to be the main source of them, it should help the situation in the rest of the upstairs


Q.
On 2 different days I have found a loan woodlise wondering around my upstairs bathroom what dose this mean it seams a bit strange to see the same thing on different days

A.

Woodlice are quite solitary and will wander aimlessly around our homes where they like to shelter.  Odd ones will die as our houses are too dry for the woodlice to survive.  Check out the bathroom though as this is a classic site for dampness and the woodlice are probably coming there as the conditions are favourable to them.


Q.
I live in a multi storey block of flats I have found woodlice in my bedroom.How can I get rid of them

A.

Apply an insecticidal powder  such as Residex P around the edges of the room.


Q.
I have been living in my flat for over a year now and there is always a woodlouse problem. I dont know what to do! My flat is extremely damp but my landlords wont do a thing about it even though i have black mold in my bedroom. I fully understand WHY they are coming into my my flat but don't know how to get rid of them and for good. I put down a spray a few months ago and keep finding dead ones in my hallway (the main problem area). This is frankly disgusting for me as im actually quite scared of woodlice. Im clearing out nearly 4 every day and finding live onea dotted around the flat. Not only is it gross but it also stops me from putting carpet down on the concrete floor as im scared il just be walking over hundreds of woodlice. Is there any possible way to stop them from coming in as i cant afford to move out an its driving me insane. My boyfriend has even moved out because of it. Please help!

A.

If your flat is extremely damp you will never stop the woodlice.  The only thing you can do is kill the ones you see but unfortunately that does mean you will have dead ones to deal with.  You could just hoover them up and empty the bag afterwards.  If moving out is impossible I'm afraid there's little else you can do.


Q.
I have 2 dogs and lately I've noticed that everytime they come in from out the garden they are eating something,and there is a lot of woodlice out there.I jus want to no is there a safe soloution I can use which won't harm them.thank you.

A.

You really don't need to worry. The woodlice are unlikely to harm the dogs, but any chemical you put on them to kill them might.


Q.
I live in an old building that has been converted to flats. We have good double glazing in all but the hall and bathroom. I find dead woodlice around the skirtings and windows of mpst rooms on a daily basis. We dont ger a lot of condensation on the windows and as for another source could they be living in the walls of the building? I have a toddler and am pregnant and worried about using hatmful products and what damage the lice might be doing to our home. I havent found any telltale bore holes as an aside.

A.

I don't think you need to worry.  The woodlice that you are seeing are already dead.  It is possible they are harbouring behind the skirtings where there may be some damp. They will not do substantial damage to your home and they are not a threat to your health as they carry no diseases.  If you want to administer a product try dethlac which is a spray that sets hard like a lacquer and is perfectly safe for children and pets once it is dry. Also it lasts for a couple of months so doesn't need applying too often


Q.
i have a lot of these in my home , very old stone building , is their anything i can do to control them ,i mean a lot

A.

We sell a product called Dethlac which is a boundary spray.  It is residual which means it will remain active for 2-3 months before needing reapplication.  It's a winner of a product as it sets hard like a lacquer leaving no odour or residue.  It can be used inside and out and will not wash off in the rain. If you can see where the woodlice might be entering from the outside a spray of dethlac will kill the insects before they get in. (They don't die instantaneously with dethlac like a knock down spray). There may well be a similar product that you can buy in larger quantities if you wanted to spray the whole wall of a house for instance but we only sell small cans.


Q.
I found wood lice on my bed twice in two weeks... Is there anything I can do to solve this problem as this has never happened before.

A.

See if you can find an entry point for them and apply a powder such as Insectaban around the main harbourage or a lacquer such as Dethlac


Q.
I get woodlice in my kitchen all the time. This as been going on for some time now. I dont understand why. My house is damp upstaires but not downstaires. Help please. Thanks

A.

Try applying an insecticidal dust or spray to the areas they frequent.  Insectaban or Dethlac would be good or otherwise the products in our woodlice kit.


Q.
how do I stop slaters getting in around my windows

A.

Try sealing up any obvious gaps and try applying a lacquer spray such as Dethlac around the windows. I would apply it indoors and out.  This should kill any that still get in


Q.
Hi, we have been getting wood lice every summer for the past three years now, they are only in the hall and are usually found dead! The hall smells musty... Could the two be connected? If so what do I do to get rid of them? The hall floor is wooden.

A.

Eradicate the mustiness in your hall.  The woodlice are no doubt attracted to your hall because there is a certain amount of damp.  Woodlice soon die once they enter a drier environment as they need misture to survive and they are harmless


Q.
My room is in a converted loft and when it gets hot outside, there can be up to about 20 woodlice on the floor and on my walls. I think they get in through my window and I have sprayed Dethlac around my window and along the skirting boards etc, but they still find there way in. Is there anything else I can do to prevent this? They wouldn't bother so me much except I woke up with one crawling on my arm which creeped me out! Any help at all would be greatly appreciated.

A.

Dethlac should kill them soon after they come into contact with it but it won't act as a barrier to keep them out.  You need to establish where they are getting in and block any entry points. I would spray Dethlac outside for good measure as long as you can do this safely


Q.
we have a house that has been built few years ago. Around summer time when it gets warmer we keep finding woodlice on ground floor hallways carpet, lounge and kitchen. there is no visible rotten wood that could be attracting them. Where do they come from and how to get rid of them?

A.

Woodlice don't necessarily need rotting wood, they like anywhere that is moist to keep them hydrated.  Maybe there is somewhere else in your house, a kitchen or bathroom maybe, where the conditions are attracting them.  They have likely wandered into the other rooms from elsewhere. There could also be vegetation or wood piles outside near the house which is harbouring them.  The best way to get rid of them is to remove what is providing them with the perfect living conditions


Q.
woodlice are eating my cucumbers,tomatoes and peppers that are growing in the greenhouse,how can I get rid of them

A.

You could try sprinkling plentiful amounts of oa2ki powder (diatomaceous earth) around the plants.  This is safe to use around crops and should dehydrate and kill the woodlice causing the problem


Q.
Hi I live in Spain, where it is very dry. This year hardly any rain so we have to water frequently. My problem (some may say how lucky!) is that we are getting huge amounts of woodlice in the pool every day, this has been happening for about 3 weeks now. I hoover them out evry day, next moring back again. All our borders are gravelled, and we are finding quite large colonies along the wall, what Insecticide would you recommend that would stop them coming up the walls, across our terrace and going for a swim every evening!! And not hurt the shrubs!! Many thanks..

A.

Anything with permethrin is the best deterrent for woodlice


Q.
I am over run with woodlice but only on the outside of my house,they are not coming in to the house. This started in aug it has never happened before. They are only on my house in the culdisac i live in,all the other houses have been painted excepted mine,maybe it could be the lime in the old paint? Please help

A.

Getr hold of a spray containing permethrin such as dethlac or insectrol and spray the outside of your house and around it.