wasps in silver maple knots - Ask Extension
I HAVE A WASP NEST IN A KNOT OF MYSILVER MAPLE TREE. I HAVE ALREADY SPRAYED WASP SPRAY BUT NOW HAVE A DIFFERENT PRODUCT AS THE BLACK FLAG DID NOT DO ...
Knowledgebase
wasps in silver maple knots #885608
Asked September 17, 2024, 3:42 PM EDT
I HAVE A WASP NEST IN A KNOT OF MYSILVER MAPLE TREE. I HAVE ALREADY SPRAYED WASP SPRAY BUT NOW HAVE A DIFFERENT PRODUCT AS THE BLACK FLAG DID NOT DO THE TRICK. MY SON SUGGESTED TO ME THAT I MAY DAMAGE THE TREE BY SPRAYING DIRECTLY INTO THE KNOT. AND THAT IS MY QUESTION. THANKS
Ramsey County Minnesota
Expert Response
The wood surrounding/comprising the knot is probably dead, so it's unlikely the insecticide will damage or otherwise affect the tree.
When wasps are no longer present it's best to close or cover the cavity/knot so it isn't accessible to them next summer.
When wasps are no longer present it's best to close or cover the cavity/knot so it isn't accessible to them next summer.
