Commercial formulations of Bacillus
thuringiensis subspecies kurstaki (Btk) have been used
as a tool for the control of forest caterpillar pests since the mid-70’s.
DiPel 8L and Foray 48B
DiPel 8L and Foray 48B are bio-rational insecticides containing the
spores and crystalline proteins produced by the gram-positive bacterium
Bacillus thuringiensis subspecies kurstaki, commonly known
as B.t. or Btk. Btk is considered “friendly”
to human beings as well as to other species of animals. Btk
has specific activity only against susceptible caterpillars. DiPel
8L’s and Foray 48B’s inert ingredients, which include
various carriers, suspensions agents, and stabilizers are classified
by the Environmental Protection Agency (EPA) as inert ingredients
of minimal toxicological concern to non target organisms and the environment.
As Btk exhibits a unique insecticidal activity specific to
caterpillars and because the inert ingredients are innocuous, DiPel
8L and Foray 48B do not exhibit any of the hazards often associated
with chemical insecticides.
DiPel 8L and Foray 48B are very effective and are considered environmentally
friendly.