secondary insect मीनिंग इन हिंदी

The increase in insecticide use for the control of these secondary insects was far smaller than the reduction in total insecticide use due to Bt cotton adoption.
Moreover, the increase in insecticide use for the control of these secondary insects was far smaller than the reduction in total insecticide use due to Bt cotton adoption.
An ambitious study to determine ( 1 ) the degree of vulnerability of white spruce to budworm attack, ( 2 ) the rate of mortality with respect to defoliation, stand age and composition, geographical location, and relative to mortality among balsam fir, ( 3 ) sequence of attack by secondary insects, and ( 4 ) the rate of deterioration of killed trees, was begun in 1975 ( Blais 1976 ) when 10 line plots 60 m wide averaging 0.5 km in length were established in mature stands of white spruce about 14 km apart along bush roads in the Dumoine and Coulonge river watersheds of western Quebec.