1992年6月上旬,笔者试用高压树干注液器(重庆恒压刷握厂生产),在红桔、甜橙树上进行防治蚧、螨害虫试验。水胺硫磷或氧化乐果使用浓度为8％～10％,速扑杀使用浓度为2％～4％。注药后20天调查,3种药剂处理的防治效果均在80％以上,蚜虫、天牛等害虫也得到兼治。采用此法治虫,全年用 In early June 1992, I tried high-pressure trunk injection device (Chongqing constant pressure brush grip factory production), in red orange, orange tree for prevention and treatment of scale, mite pest test. Aminophthrene or omethoate concentration of 8% to 10%, the use of speed culling concentration of 2% to 4%. 20 days after injection drug investigation, three kinds of agent control effect are more than 80%, aphids, pests and other pests also get rid of. Use this rule of law insects, year-round use