Bores in tree???

[thomas holder]

All the trees in yard are infected by some kind of bore. Mesquite-- oak--elm-- chinese ????-- and others. Is there a good spray I can use. I found 1 1/2 inch worms in the mesquite.

 

[John Paul Sanborn]

Sprays can control the adult that lay the eggs. You need systemics to control cambial borers. That's a big larve to be a borer though.