We are plagued with carpenter bees on our back deck each year. If we spray the holes do we then need to seal them up to be sure they don’t come back? If so, what’s the best thing to fill them with?
I suggest you review our online article on CARPENTER BEE CONTROL. There you’ll learn that simply “spraying” their nests won’t work. You must treat with a long lasting dust like the DRIONE and then seal the holes with 1/2″ CORKS so the dust lasts long enough to kill the entire colony.
In the article you’ll also learn spraying with the CYPERMETHRIN is the best way to prevent new nests from being drilled. I use this annually to stop them drilling my deck and 2 treatments is all most people will have to do per season.
Lastly, add some NBS PAINT/STAIN ADDITIVE the next time you paint your deck and this will save the effort of having to spray as it will last 1-2 years.
Here are direct links to the information and products listed above:
Carpenter Bee Control: www.carpenterbees.com
Give us a call if you still have questions.