90.4% Paraffin Wax Oil Trials Preventing And Controlling Main Pests On Cotton Field

China is one of the world's largest cotton producers. Hence, cotton production in overall Chinese agriculture holds very important position in terms of quality and quantity. However, in 1990's, due to Chinese peasants increasingly mis-application of pesticide on the cotton field, which caused cotton pests has strong resistance to pesticide, and this phenomenon is gradually serious in resent year. Therefore, in order to control the cotton pests, to increase cotton production in terms of quality and quantity, and also to promote the sustainable development in agricultural production, the comprehensive research on pesticides of mineral oil, especially for paraffin wax oil, is extremely important. After two years trial and research, the result is listed in the follow section.(1) 90.4% paraffin wax oil are good for armigera, aphid gossypii, red spider mite, green leaf, thrips tabaci control effect. Suggest that prevention in aphid gossypii is in aphid gossypii's early larva and spawning stage of a spray; effect of pesticide larvin on armigera, red spider mite, green leaf, thrips tabaci in the beginning of the provinces, the application rate is 9 kilo per ha., which has good result from control cotton's pests. The second application to control pests after seven to ten day of first application.(2) 90.4% paraffin wax oil effect of pesticide larvin on armigera in the amounts recommended, one time after seven days for the effect of 84.04%, which takes 40% chlorpyrifos EC ticks are widely for efficient 96.29%; two time after seven days for the effect of 93.10%, and it takes 40% chlorpyrifos EC are 96.42% preventive effect rather.(3) 90.4% paraffin wax oil effect of pesticide larvin on aphid gossypii in the amounts recommended, one time after seven days for the effect of 93.38%, and it takes 5% cypermethrin EC preventive effect rather, the effect of prevention is 88.48%.(4) 90.4% paraffin wax oil effect of pesticide larvin on red spider mite in the amounts recommended, one time after seven days for the effect of 83.41%, which takes 15% pyridaben EC ticks are widely for efficient 96.29%; two time after seven days for the effect of 93.23%, and it takes 15% pyridaben EC are 95.51% preventive effect rather.(5) 90.4% paraffin wax oil effect of pesticide larvin on green leaf in the amounts recommended, one time after seven days for the effect of 74.30%, which takes 2.5% deltamethrin EC ticks are widely for efficient 90.04%; two time after seven days for the effect of 93.02%, and it takes 2.5% deltamethrin EC are 98.70% preventive effect rather.(6) 90.4% paraffin wax oil effect of pesticide larvin on thrips tabaci in the amounts recommended, one time after seven days for the effect of 89.37%, which takes 2.5% deltamethrin EC ticks are widely for efficient 95.80%; two time after seven days for the effect of 97.54%, and it takes 2.5% deltamethrin EC are 98.10% preventive effect rather.(7) 90.4% paraffin wax oil compared with controls potions, less readily availability. he second application to control pests after seven to ten day of first application, control effect and pollution-free.