Tip 1: Grab in

in time

If the longhorn beetle larvae are already scattered throughout your house, it is extremely difficult to fight the plague. There will always be a few beetles left somewhere that can produce a lot of eggs. From which new voracious larvae emerge. Check your woodwork regularly and start controlling it at the first signs of voracious larvae!

Tip 2: Recognize the longhorn beetle

If you discover sawdust or see wormholes in your wood, something is wrong. But is it buckworm, woodworm or another creature? Take a good look at the holes. If they are at right angles to the wood, it’s woodworm. Slanting holes mean that you have a longhorn beetle. This way you know that you are going to use the right control method.

Tip 3: Stay ice-cold underneath

Only sixteen degrees below zero, to be precise. Is there a longhorn beetle in small wooden ornaments that you don’t want to throw away? Pack grandma’s jewellery box or chimney clock in a plastic bag and put it in the freezer. Leave it there for a fortnight. Longhorn beetles have no superpowers – two weeks in the freezer is guaranteed to kill all the larvae in your beautiful heirloom!

Tip 4: Try turpentine or petroleum


Is there a longhorn beetle in stuck wood? If there is little damage, you have a good chance that you can fight the problem with these home remedies. Lubricate where you see holes. The fluids migrate into the wood, penetrate the body of the larvae and kill them without causing much inconvenience.

Tip 5: Use a spray with permethrin

Permethrin is a modern insecticide that attacks the nerves of longhorn beetles, paralysing them and causing them to die. It works selectively and is therefore not very toxic to humans or pets. Sprays of permethrin intended for use against longhorn beetles or beetles can produce very good results if the insects are not too deep in the wood.

Tip 6: Give them a warm welcome

If the situation lends itself to it, you can heat the affected wood to 60 degrees. That is more than the beetles can cope with. The question is, of course, how to get the wood so hot – and keep it at that temperature for a while – without lighting a fire underneath. A better way to do this is to call a professional pest controller. He or she will use one of the following two pest control methods.

Tip 7: Use a professional poison

Peasants that control longhorn beetles may use heavy but effective toxins that you will not find in the garden centre. This poison has a very good result. These insecticides are sprayed on the surface or injected deep into the wood in case of heavier infestations.

Tip 8: The heavy work: gas

Does the poison treatment of a qualified fighter also have no effect? Is the affected area inaccessible, or is your entire home affected? Then it is time for the last resort. Your house will be sealed off and filled with toxic gas by the pest controller. This is a horse remedy – an expensive process that causes a lot of inconvenience. I’m sure we don’t have to explain to you that under no circumstances should you use gas yourself!

Tip 9: Deny them access

Are you in control of the rotten animals? Then prevent them from coming back. Longhorn beetles have a brother dead from lacquered, painted or oiled wood. By treating your woodwork with one of these agents, you prevent the beetles from laying eggs on it.