What is treatment for insects boring small holes in wooden rafters?

Could be several possibilities. #1 on the list is termites. This is generally not a DIY. Call a reputable exterminator for a free inspection. Get several if you need to. Heed their advice. A colony or two of termites can destroy a home in short term. And make it uninhabitable and even red taged. Homeowners insurance will not kick in due to lack of homeowner maintenance.

It could be termites or, if the holes are larger, wood bees. I would call in a professional to take a look.

This could be very serious so please have a pest person come in to identify which bug this is. If it is termites you don't want to guess you want to know for certain.

Call in a professional to identify the insects, there are a lot of pest control companies out there that can help you, if they are termites, act immediately.

Hello, hope this helps you out,

https://www.shedworking.co.uk/2019/05/how-to-recognise-if-you-have-woodworm.html#:~:text=Woodworm%20is%20the%20generic%20name,stage%20of%20wood%2Dboring%20beetles.&text=If%20the%20timber%20within%20the,burrow%20holes%20in%20the%20wood.

Hi this is Peggy. Yes we have wood or carpenter bees in our barn. Hope this helps you.

www.orkin.com › Stinging Pests › Bees

Carpenter bee prevention and treatment begins with a thorough inspection performed by your pest management professional (PMP). During the inspection, your ...

Sounds like termites. Call a pro.

Hello without a photo of the holes tunnels or insects its hard to say. You might call a pest control company for a professional assessment and treatment plan estimate.

Hi there, it could be wood borers or termites and it's best to get a pest control company to come have a look. Those little critters can become a big problem if they're not dealt with properly

There are some posts here that may be helpful:

https://www.hometalk.com/search/posts?filter=termites

Hello,

These could be Woodworm. Use a Woodworm Killer and squirt into the holes and or Brush it on several times.

If you are in the US, it may be Termites! Think you have to call in a Company to sort them!

Best wishes.

We use a termite spray, Hi Yield 238 Plus, that you can be applied for a multitude of insect problems. You mix with water and apply with a sprayer.

Any good quality termite spray should work.

It could be termites but it could also be powder post beetles. You should have a pest inspector out to tell you what kind of bugs are the issue first.

We had carpenter ants in our resort cabins. Painted with some sort of insecticide and that took care of it. They didn't do a lot of damage, just looked unsightly with the small hole and sawdust below it.