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本试验于1983—1984年在南俄勒冈梅德福附近的里根河流域进行.试验地面积0.25公顷,供试梨树品种为Bosc’,树龄30年.Bosc’是一种晚熟品种(9—10月),各代苹果蠹蛾均对其取食为害.供试生长调节剂为二氟苯隆(difluberzuron,有效成分0.04—0.08克/升)、奥斯汀(alsystin,有效成分0.08—0.22克/升)和CME13406(1-〔3,5-二氯-2,4-二氟苯基〕-3-〔2,6-二氟甲酰-灭幼脲,有效成分0.06克/升),以亚胺硫磷(有效成分0.06克/升)为对照,每种药剂处理2棵树,随机排列,重复3次.亚胺硫磷第一次喷施在第一代苹果蠹蛾卵孵化前或稍后,喷后28天左右喷第二次,第二代成虫羽化时喷第三次.生长调节剂每次喷施
This experiment was conducted in the Reagan River Basin, near Medford, Southern Oregon, from 1983 to 1984. The experimental area of 0.25 hectares for the test pear variety Bosc ’, age 30 years.Bosc’ is a late-maturing variety (9-10 Month), all generations of codling moth were feeding damage.The test regulators are difluberzuron (active ingredient 0.04-0.08 g / l), Austin (alsystin, active ingredient 0.08-0.22 g / l ) And CME13406 (1- [3,5-dichloro-2,4-difluorophenyl] -3- [2,6- difluoro-benzoylbenzoate, active ingredient 0.06 g / Aminophthrene (active ingredient: 0.06 g / L) was used as a control, and 2 trees were treated with each agent randomly and repeatedly for 3 times. The first spraying with imidosulfan was carried out before or during the first generation of codling moth eggs After spraying about 28 days spray the second time, the second generation of adult feather spray the third time. Growth Regulators spraying