Text book of applied entomology:
Srivastava, K. P.
Text book of applied entomology: methods of insects pest control / by K. P. Srivastava - Reprint - Ludhiana : Kalyani Publishers, 2004.
8176638072
Advantages And Hazards Insect Control Insecticides Natural And Synthetic Natural Control Pest Control
Text book of applied entomology: methods of insects pest control / by K. P. Srivastava - Reprint - Ludhiana : Kalyani Publishers, 2004.
8176638072
Advantages And Hazards Insect Control Insecticides Natural And Synthetic Natural Control Pest Control