Here I am in the middle of a Tent Caterpillar infestation and am feeling frugal. My question is rather BT (Bacillum Thurengus SP?) will hold over a year or so. I guess I will find out because I sprayed the critters with the old spray, but if enough of you reply that BT goes dead in a year I will go out and buy fresh BT spray. Thanks, Ken.
- posted
19 years ago