Explain mechanical and physical control methods of IPM

Mechanical Methods of IPM :--

1. Handpicking

The use of human hands to remove harmful insects or other toxic material is often the most common action by this method. Insect can be hand-picked and destroyed of their easily accessible to the pickers large and conspicuous and present in large number of clusters. e.g. Egg mass of rice stem borer, early larval stage of jute hairy caterpillars, adult of  sugarcane stem borer etc. can be maintained by hand and destroyed.  

2. Use of hand net and bag nets 

Some adult insect can be collected and destroyed with hand nets. e.g. Green leaf hopper, Grasshoppers etc. can be controlled with hand nets when  they migrate in April­May from maize to sugarcane. The bag nets can be used to control the some insects. e.g. Rice hispa from the field partially.  

3. Beating and hooking

Various household pest like as housefly, cockroach etc. can be killed by beating _____ _______ ____ ___ _____ _________ _______ _____.
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