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What is the threshold level of nymphs per leaf of cotton jassid to undertake spraying of insecticides?
Question

What is the threshold level of nymphs per leaf of cotton jassid to undertake spraying of insecticides?

A.

1-2

B.

3-4

C.

5-6

D.

7-8

Correct option is A


The threshold level for cotton jassid (Amrasca biguttula) nymphs, at which insecticide spraying is recommended, is generally considered to be 1-2 nymphs per leaf.

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