For a long time, pest control In the cotton industry has depended on a narrow range of broad-spectrum insecticides.

BACILLUS THURINGIENSIS use as an insecticide for 25 years despite formidable competition from conventional insecticides is largely due to its safety and compatibility.

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Factors which influence the efficacy of an NPV application These include: (i) the initial actjvity of the virus preparation, distribution (.i.i) lts rate or application and distribution on the crop, (Jji) Its persiste