【摘要】 【目的】筛选适合新疆生产实际、对葡萄斑叶蝉防效较好的药剂种类,为有效防治提供依据。【方法】室内用叶片浸叶法测定了2种杀虫剂对葡萄斑叶蝉3龄若虫的毒力。选用4种农药对葡萄斑叶蝉的田间药效进行了试验。【结果】阿克泰对葡萄斑叶蝉的活性高于吡虫啉,吡虫啉和阿克泰的LC50分别是46.26和19.31μg/mL。田间试验表明:吡虫啉、阿克泰、吡蚜酮和矿物油都具有很好的防效,且前两种农剂药后持效期长,药后7 d防效是100%。【结论】防治葡萄斑叶蝉除生产中已应用的吡虫啉、阿克泰外,吡蚜酮和矿物油也可作为备选药剂交替使用。更多还原

【Abstract】 【Objective】The different insecticides in Xinjiang were studied to provide scientific basis for the chemical control of Erythroneura apicalis Nawa.【Method】The toxicity of two pesticides to 3rd instar larvae of Erythroneura apicalis Nawa were determined in room by leaf-dip method.Several insecticides were tested in field.【Result】The results showed that imidacloprid and thiamethoxam had higher activities,their LC50 were 46.26 μg/mL,19.31 μg/mL respectively.The results of field trial indicated that all of four insecticides including 10% WP imidacloprid,25% WG thiamethoxam,25% pymetrozine WP and 99% mineral oil had better control effects on Erythroneura apicalis Nawa,and 10% WP imidacloprid,25% WG thiamethoxam had longer persistence against the insect,their controlling efficiency were 100% after 7 days.【Conclusion】Based on the results of toxicity tests and field trials,25%pymetrozine WP and 99% mineral oil could be recommended for controlling Erythroneura apicalis Nawa.更多还原