BACILLUS THURINGIENSIS
Bacillus thuringiensis, commonly sold as B.t., is
a bacteria from which a toxin is manufactured that has insecticidal properties
against vareious insects. Compounds sold as B.t. contain the manufactured
toxin and not the bacteria. Several strains of the bacteria produce toxins
specific to different insects. The products are specific to individual
insects and are not toxic to other pests or animals.
B.t. kurstaki commonly sold as DIPEL, THURICIDE, or
BIO-TROL can be used to control the leaf-eating caterpillars of various
butterflies and moths. Caterpillars commonly controlled with B.t. kurstaki
include tent caterpillars, gypsy moths, peach tree borers, webworms, and
codling moth.
B.t. israelensis is used for effective against the
larval form of some members of the fly family (Diptera) including black
fly, fungus gnat and mosquito. House flies, stable flies and blow flies
are not controlled.
B.t. san diego has activity against leaf feeding beetle
larvae such as Colorado potato beetles and the adults and larval stage
of elm leaf and willow leaf beetles.
Make sure to read and follow all labeled directions.
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