摘要
近年来杨潜叶跳象对河西走廊地区胡杨(Populus eaphratica)林的危害日益加剧。在金塔县杨潜叶跳象的调查中发现,金塔县气温超过10℃时,杨潜叶跳象出蛰恢复活动,出蛰后立即上树为害胡杨,5月下旬开始化蛹,6月上旬为化蛹盛期。通过喷施5%高效氯氰菊酯乳油1 000倍液,2.5%溴氰菊酯乳油2 000倍液对杨潜叶跳象进行防治,结果表明,4月初在树下喷施1 000倍5%高效氯氰菊酯乳油的胡杨平均好叶率明显高于清水对照胡杨平均好叶率,林内及树下喷施1 000倍5%高效氯氰菊酯乳油,蛹的平均校正死亡率分别为99%、100%,成虫几乎无法完成羽化。
Rhynchaenus empopulifolis is the most important insect pest damaging Populus euphratica forest,and the incidence is becoming increasingly serious.In the present study,we found that when temperature above10 ℃,it recovers activity and immediately causes harm to P.euphraticain Jinta County.The larva begins to pupate in May,and is most abundant in early June.We investigated the effectiveness of the control of this pest by separately spraying 5% Cypermethrin Emulisible Oil 1 000 times,and 2.5% Deltamethrin Emulisible Oil 2000 times.According to the results,spraying 5% Cypermethrin Emulisible Oil 1 000 times had a significant control effect that average good leaf rate was higher than water treatnent in early April.Moreover,the average correct mortality of the pupae was 99% and 100%,and with this control strategy,the adults almost could not complete eclosion.
作者
张琼
达军山
万建生
刘金荣
Zhang Qiong Da Jun-shan Wan Jian-sheng Liu Jin-rong(Key Laboratory of Grassland Farming Systems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China State Chaohu Tree Farm of Jinta County, Jiuquan 735300, China)
出处
《草业科学》
CAS
CSCD
北大核心
2017年第3期630-634,共5页
Pratacultural Science
基金
国家科技部农业科技成果转化项目<干旱荒漠区重盐碱地改良与胡杨造林及植草技术推广>(2014GB2G100132)(2014-16)
关键词
河西走廊
杨潜叶跳象
高效氯氰菊酯乳
溴氰菊酯乳油
平均好叶率
羽化
Hexi Corridor
Rhynchaenus empopulifolis
Cypermethrin Emulisible Oil
Deltamethrin Emulisible Oil
average good leaf rate
emergence
