The first bioinsecticide to be developed on a commercial scale was
A
Morphine
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B
Pyrethrin
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C
Sporeine
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D
Rotenone
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Solution
The correct option is B Sporeine Sporeine is the trade name given to the commercial product made from Bacillus thuringiensis (Bt). Bt produces the toxic protein that actually binds to specific sites on the midgut of insects and kills them and thus used as an insecticide in agriculture. The earliest commercial production of Bt began in France in approximately 1938, under the trade name sporeine. The first, and still most, widely used biopesticide included spores of the bacteria, Bacillus thuringiensis (Bt).