Ouabache
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turbo-1 said:While out there, I noticed some insect damage to leaves of beans and peppers, as well as the previously-known rhubarb leaf damage, so I mixed up a watering can with BT (baccilus thuringiensis) to give those bugs belly-aches. The active ingredient is a natural non-toxic spore that paralyzes the guts of many leaf-eating insects. Since the rains have stopped, I intend to mix a little BT with my canola-oil tree spray to protect my fruit trees. I just killed my first Japanese beetle of the season, and I am NOT too happy to see any of those around. They attacked my raspberry bushes, peach tree, and others last year. Hopefully, I can get ahead of them this year and kill them off with BT before they have a chance to breed.
Do you know which variety(s) of BT are you using?
Here are some examples and what they target. (http://www.nysaes.cornell.edu/ent/biocontrol/pathogens/bacteria.html )
Bacillus thuringiensis
var. tenebrionis - Colorado potato beetle and elm leaf beetle larvae
var. kurstaki - caterpillars
var. israelensis - mosquito, black fly, and fungus gnat larvae
var. aizawai - wax moth larvae and various caterpillars, especially the diamondback moth caterpillar
I would probably go with some BT tenebrionis to go after the coleopterans on your vegetables.
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