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Which of the following is not present in carbamate insecticides?

(a) Carbaryl

(b) Plant toxin

(c) Physostigmine

(d) Diuron

This question was addressed to me in an international level competition.

The origin of the question is Fate of Pesticides in the Environment in chapter Biodegradation of Pesticides in the Environment of Environmental Biotechnology

1 Answer

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The correct answer is (d) Diuron

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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