Which is useful in the manufacture of Insectisides?
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Rotenone, Azadirachtin are natural insecticides, synthetic routes are deveoped recently.
DDT, Gammaxene were used but were scraped out as they pose health hazards and are insects are able sustain the max. dosages every year. Generally, Semio-chemicals, a class of compounds found in insects themselves are being studied and used as effective insecticides and warfare agents
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