Posts for insect monitoring on crop fields throughout the country increased 1.3 times as against last year's. And an information activity has been conducted to make the peasants have a good understand of characters of harmful insects and damage from them.

Meanwhile, efficacious methods for exterminating harmful insects are widely introduced. Farms have made botanical chemicals with extracts of wormwood and bristle-tooth oak as raw materials to prevent inhabitation of rice borer, rice water weevil, Cnaphalocrocis medinalis and corn borer.

Light traps were installed on fields and Trichogramme evanescena is used in the extermination of insects harmful to rice and corn.