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Which of the following is not present in carbamate insecticides?

(a) Carbaryl

(b) Plant toxin

(c) Physostigmine

(d) Diuron

I had been asked this question by my college professor while I was bunking the class.

The doubt is from Microbial Transformations of Pesticides in chapter Microbial Transformations of Pesticides of Environmental Biotechnology

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The correct option is (d) Diuron

For explanation: Carbamate insecticides comprises of carbaryl, plant toxin, physostigmine, pirimicarb etc.  They have high toxicity in case of mammals in general. Diuron is a group of phenyl urea pesticide and not carbamate insecticides. They act by the process called as carbamylation of the enzyme.

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