【摘要】 茶丽纹象(虫甲)严重为害夏茶,是我国的主要茶树害虫之一,目前尚缺乏有效的防治方法。经试验,新型杀虫剂95％巴丹防治成虫效果良好,在室内,1600倍液七天后的更正死亡率为84.7—98.3％:在田间,施药后3—10天的防治效果为72.9—90.％。叶面喷施巴丹并可兼治褐带长卷叶蛾(卵),茶尺蠖、茶银尺蠖(幼虫)以及茶蚜(若虫、成虫),幼虫期土壤处理也有相当效果。更多还原

【Abstract】 Myllocerinus aurolineatus Voss is one of the most important insect pests injurious to tea bush in Zhejiang,Anhui,Jiangxi and Fujian Provinces.It has one generation a year.The peak of weevil adult occurred in June(1975)or from the middle part of June to the first part of July(1976)at Yu-hang,Zhejiang Province.The effect of various toxicants to the adults had been worked outboth in laboratory and field tests.The 95% cartap(Padan)showed tobe the most effective of the insecticides so far tested.The correctedmortality resulted in 84.7-98.3%,seven clays after spraying with 1; 1600dilution of 95% cartap under laboratory conditions,with field tests,however efficacy of control was 72.9-90.0%,recorded 3-10 days afterapplication of the pesticide.Good control of Homona coffearia Nietner(egg),Ectropis obliqua hypulina Wehrli(larva),Scopulo subpunctaria(Herrich-Schaeffer)(larva)and Toxoptera aurantii(Boyer)(nymph andadult)could be obtained also by spraying with cartap.According to the results of the preliminary soil treatment experiments with different dosages of cartap or phoxim to control the weevil larvae conducted in the field,the treatments with 0.6-0.8 jin 95% cartap per mu showed better result.更多还原