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由于今年7月份以来,一直持续高温干旱的天气,十分有利于斜纹夜蛾、甜菜夜蛾的发生。斜纹夜蛾的寄主植物多达99个科290多种,在蔬菜上主要危害甘蓝、白菜、花椰菜、大豆、花生、芋等作物。甜菜夜蛾寄主范围亦很广,主要危害茄子、黄瓜、豇豆、花椰菜等35科108属170余种植物。根据通州区植保站诱测灯下及性诱剂系统观测,今年第四代斜纹夜蛾、甜菜夜蛾于8月14日出现高峰,当日灯下斜纹夜蛾蛾量为84头,预计8月下旬进入卵孵盛期至低龄幼虫高峰期,发生时间比常年提早7~10天,发生量高于往年,发生程度为大发生。希望各地对此引
Since July this year, has been sustained hot and humid weather, is very conducive to Spodoptera, beet armyworm occurrence. Spodoptera litura host plants up to 99 families more than 290 kinds of vegetables in the main endanger cabbage, cabbage, cauliflower, soybeans, peanuts, taro and other crops. Spodoptera exigua host range is also very wide, the main endanger eggplant, cucumber, cowpea, cauliflower and other 35 families and 108 genera and 170 species of plants. According to Tongzhou District plant protection station under the detection of light and lure lure system observation, the fourth generation of Spodoptera exigua, beet armyworm peaked on August 14, the same day the amount of light Bulimia moth was 84, is expected in August Late into the incubation period of egg hatching to young larvae peak, the occurrence time than usual perennial 7 to 10 days, the occurrence is higher than in previous years, the occurrence of a large occurrence. I hope around this lead