spray through and inside the hole. The wood block is kept inside plastic bag so it is in very good condition.
I have few wood blocks, old with big and small holes on the surface on some of these. I am willing to use these but am afraid if there are termites or other such insects inside, may be inactive for a long time, but will become active later. In fact these are kept inside a bag tightly closed and I never see any insect when I open to inspect the blocks. Should I use the blocks or throw these away?
