Pest control methods include agriculture, biological control, physical control and chemical control.But often because of poor control or efficacy of slow, chemical control and natural control factors conflict in to kill pests, but also often kill the natural enemies of pests.If used alone to evaluate the percentage of killing pest control effect of the chemicals currently used in most relatively efficient, but with ecological economics, environmental science point of view to evaluate chemical control is not the best control methods.Chemical control is another prominent increase of resistance to pests and environmental, agricultural pollution is getting worse.So Insect mulching techniques  benefits the country is truly worthy of a good technology.I plant annual production of 25 mesh 30 mesh 40 mesh 50 mesh 60 mesh insect nets, telephone 13503118069 QQ376514676 website http://www.fangchongwang123.com.cn.