自制机油水乳剂的配制使用方法及防治介壳虫的最佳期探讨

Preparation and Application of Self-made Oil-water Emulsion and the Best Time to Control Scale Insects

介壳虫是一种顽固性的刺吸害虫,常规药剂很难渗入虫体,防治十分困难,为寻找绿色、高效、环保的药剂,达到彻底防治的目的.自制一种机油水乳剂,将废机油、洗衣粉按重量1∶1的比例、充分搅拌成乳白色的粘稠液体,即为机油水乳液原液,再根据树木物候期选定最佳防治期,采用4种配药比例药剂对柿绒蚧进行喷药防治试验,计算虫数口减退率和防治效果.结果表明:机油水乳剂最适宜的使用浓度是6%,对介壳虫、害螨等具有明显的防治效果,绿色环保,生产上值得推广应用.

Scale insect is a stubborn stinging pest.It is difficult for conventional chemicals to penetrate into its body,so it is very difficult to control it.In order to find green,high-efficiency,environmental friendly agents and achieve the goal of prevention and control,this paper makes a kind of oil-in-water emulsion.The waste oil and detergent powder are mixed into the white thick liquid according to the weight ratio 1:1,namely,the emulsion of the oil and water.Then the best control period is selected according to the phenological period of the trees.Four kinds of dispensing agents are used to spray and control the persimmon and the population decline rate and control effect are calculated.The results show that the most suitable concentration of oil-water emulsion is 6%,which can be used for the control of scale insects and harmful mites,with environmental protection,and worthy of popularization and application in production.