barn beams


Is there a certain time of year that spraying works best?  We have powder post beetles in our barn beams.  Is it too late for this season to spray?

If you read through our POWDERPOST BEETLE CONTROL ARTICLE, you’ll learn this pest is active year round. They don’t rest or go dormant. However, the treatment needs to be done when it’s fairly warm out and above freezing if you plan on using BORACARE. As a general rule, you don’t want the daily average temp to get below 50 degrees but it’s okay if gets down to the 40’s for a little while. Of course if the barn is heated this wouldn’t be a problem. But if it’s fairly open like most barns, the temps will vary with the local seasons. Averages in the 50-80 degree range would be ideal so maximum penetration and coverage can be obtained. But if you’re up north and it’s winter time, waiting till the spring or summer would be suggested.

Here are direct links to the information and products listed above:

Powderpost Beetle Control Article:


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Comments on barn beams Leave a Comment

January 21, 2016

Larry @ 10:43 pm #

I have poplar lumber 16″ wide 3″ thick 8′ long. They were milled in early 1990’s and stored in a dry barn. I cut one into some 1″ inch rips for a project. I have many powderpost beetle holes. My dad’s friend said all the beedles are gone do to lack of moisture. I want to make a floor in my bathroom out of it but I sure don’t want a insect problem. My question is are the beedles and larva gone?

January 22, 2016

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