Here I am in the middle of a Tent Caterpillar infestation and am feeling
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.
I know I have used the same container of BT for 3 or 4 years and it
still seemed to be completely effective against cabbage worms.
I use the dry wetible powder form. I have the feeling you might be
using the liquid.
Kenneth D. Schillinger wrote:
I have used the Safer brand liquid and found it to be good for several
years, but I have also had a Bonide brand liquid that never even worked the
first year I bought it. It had the appearance of being curdled and smelled
putrid. I think it had been frozen. Will that ruin it? The Safer stuff
had a sweet smell and a much smoother appearance.
I asked if BT would be good after a year or so and received several replies.
Thanks to those of you whom replied.
For your information I am happy to say that all of the tent cats I sprayed
I guess that BT will last for a while after it has been opened.
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