具體防治方法:在秋玉米長出6~8片新葉時,葉麵噴灑一次1000倍1.1%甲維鹽水溶液,或1000倍2.5%高gao效xiao氯lv氟fu氰qing菊ju酯zhi水shui溶rong液ye,將jiang吸xi附fu在zai嫩nen葉ye上shang的de斜xie紋wen夜ye蛾e卵luan塊kuai和he幼you蟲chong殺sha死si滅mie絕jue。以yi後hou注zhu意yi檢jian查zha秋qiu玉yu米mi的de葉ye片pian,發fa現xian葉ye片pian上shang有you斜xie紋wen夜ye蛾e為wei害hai時shi,就jiu要yao葉ye麵mian噴pen灑sa一yi次ci1500倍20%除蟲脲、1500倍2.5%溴氰菊酯混合液,或1500倍10%滅幼脲、1500倍4.5%氯lv氰qing菊ju酯zhi混hun合he液ye進jin行xing防fang治zhi。均jun勻yun噴pen濕shi所suo有you葉ye片pian的de葉ye麵mian葉ye背bei,以yi開kai始shi有you水shui珠zhu往wang下xia滴di為wei宜yi。由you於yu斜xie紋wen夜ye蛾e晝zhou伏fu夜ye出chu,所suo以yi最zui好hao選xuan擇ze在zai下xia午wu四si點dian鍾zhong以yi後hou噴pen藥yao,並bing且qie要yao噴pen濕shi根gen部bu周zhou圍wei的de土tu壤rang,因yin為wei斜xie紋wen夜ye蛾e白bai天tian都dou是shi潛qian伏fu在zai根gen部bu周zhou圍wei的de草cao叢cong和he表biao土tu中zhong。如ru果guo能neng在zai藥yao液ye中zhong加jia入ru1500倍聖農素螯合肥水溶液同噴,效果更佳,殺蟲更快、更徹底,特別是對產生抗藥性的斜紋夜蛾,能使其瞬間死亡,還能從葉麵補充養分,使秋玉米生長更好,產量更高。
斜紋夜蛾在秋玉米長出6~8pianxinyeshikaishifashengweihai,zhuyaoshiyaoshinenye,yingxiangguanghezuoyongheyangfenjilei,shizhizhushengchangshuairuoerwufazhengchangshengchang。muqianxiewenyeeweihaiqiuyumiyepianxiangdangyanzhong,bixujishijinxingpenyaofangzhi。
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