Q. 95.0( 2 Votes )

Explain the various preventive measures against insect pests.

Answer :

Preventive measures against insect pests:

(i) Root cutting type of insects is controlled by mixing insecticides in the soil.

Example - chlorpyrifos.

(ii) Stem and leaf cutting type of insects can be controlled by dusting or spraying the contact insecticides.

Example - malathion, lindane and thiodan.

(iii) All sap sucking insects can be controlled by spraying insecticides in systematic way.

Example - dimethoate and metasystox.

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