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Carpenter bees are large bee-like" insects that resemble the bumble bee, as they have similar body structure and coloring. However, unlike their bee relatives, Carpenter bees are generally not aggressive. Only the female carpenter bee is capable of stinging, and will only do so when provoked. These creatures like sylvan environments, as they like to burrow tunnels inside wood to set up a nest. The following wikiHow explains how to get rid of Carpenter bees.
Exclusion craziness is one method of getting rid of these insects. Sealing and painting over the surfaces where you have found these little critters will help prevent them from setting up.
Pesticides are another possible solution to your problem. Powders are the most effective pesticide for active Carpenter bee nests. Products such as, Bendiocarb (Ficam D available, but no longer in production), Carbaryl (Sevin) dust and boric acid (Borid Turbo Aerosol) are effective. (See "Warnings".)
Stuff their hole with steel-wool. They can't dig through the steel. Then, after they have left that nest, you can use some wood putty to patch the spot. (Match the putty to your wood or plan on painting.)
Get an exterminator
Make a lot of noise. Carpenter bees do not like noise, so they will leave.
They make a pesticide that you can spray into the burrows that the bees have already made. It is a fine powder that will kill the larvae and the adult bees. The most important step in getting rid of these bees for good is to kill the larvae. Also a trick that farmers use is to spray the holes with gas. Diesel works well. The petroleum in it kills the bees on contact.
Aerosol carburetor cleaner has an extension tube for the can, and cans be had cheaply from a discount store. Some types will kill them instantly inside their burrow. Be VERY careful to not get this in your face or eyes, wear eye protection, read the precautions.
In spring they fly around looking for burrows to lay eggs and deposit pollen as food for the larvae. (They use old burrows too, why it is a good idea to plug them.) They are very active for two to three weeks. A badminton or tennis racket is very effective to smack them with, especially easy with their habit of stopping and hovering for a moment. Make sure to give them a good brisk smack! Stepping on them, (with shoes of course), is an obvious extra option after you smack them.
Further research about removal of these bees can be located in the external links.
To avoid being stung when removing, try putting vinegar on your hands, as this repells them. Do not put vinegar anywhere but on your hands.
if you can't completely spackle or seal holes or possible new spaces for these bees, you can temporarily stuff a ball of coarse steel wool (grades 0# or 00#) into the holes - they can't chew steel wool and it makes them go somewhere else
Make sure to wear protective clothing when handling these bees, as they do sting.
Do not use pesticide products that are banned; they're banned because they're bad for your health, the health of children, or cause serious environmental problems.
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