Q. 95.0( 2 Votes )
Explain the various preventive measures against insect pests.
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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