Instead, encourage Yellow Jackets and Bald Faced Hornets. Both spend
their days searching out larva to take back to their nest to feed their
young. You don't want them feeding their young with Bt poisoned grubs. By
the time insects develop resistance to Bt, you'll hope there are still some
(flying) biological controls around. Hopefully, you won't have killed them
all off.
Jim Fruth
Brambleberry Farm
Pequot Lakes, MN 56472
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