Bore Worms in Ash
I have this nice tree in my front yard that I would like to keep. Its about 10" in diameter and an arborist aquaintance pointed out small holes in the trunk to me and said i can treat them with some sort of pesticide called eight? 8? I guess its like seven that you put on garden plants? Anyone heard of this? I think he said it has something called perimythium(??) in it?
Or where to buy it?