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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