摘要
[目的]筛选出适宜玉龙县马铃薯金针虫防治的生物杀虫剂。[方法]选取5种生物杀虫剂开展田间药效试验。[结果] 5个生物杀虫剂处理出苗率均极显著高于对照药剂3%辛硫磷颗粒剂和CK处理,200亿孢子/g白僵菌微粒剂、16 000 IU/mg苏云金杆菌可湿性粉剂2个处理出苗率最高,分别达98.74%、99.71%;5个生物杀虫剂处理保薯效果和对马铃薯金针虫的相对防效均极显著高于对照药剂,16 000 IU/mg苏云金杆菌可湿性粉剂保薯效果和相对防效均最高,分别为30.07%和44.06%;5个生物杀虫剂处理小区均产均极显著高于CK处理,显著高于对照药剂,200亿孢子/g白僵菌微粒剂产量最高,达36 016.80 kg/hm^(2)。[结论] 5个生物杀虫剂中,16 000 IU/mg苏云金杆菌可湿性粉剂,见效快且持效期长,最适于马铃薯金针虫生物防治;其次是200亿孢子/g白僵菌微粒剂,保薯效果20%以上,相对防效30%以上;再次是2亿孢子/g金龟子绿僵菌颗粒剂、100亿孢子/g绿僵菌微粒剂,保薯效果12%以上,相对防效30%以上。
[Objective] To screen out suitable biological insecticides for the protection of potato from Pleonomus canaliculatus in Yulong County. [Method] A field efficacy trial was carried out with 5 biological insecticides. [Result] The emergence rate of the 5 biological insecticides treatments was significantly higher than the control agent 3% phoxim granules and control treatment, the emergence rate of 20 billion spores per gram Beauveria bassiana microparticles and 16 000 IU per milligrams Bacillus thuringiensis wettable powder were highest, 98.74% and 99.71% respectively. The preservation and the relative control effect on potato Pleonomus canaliculatus were better than control agent, the preservation and the relative control effects of the 16 000 IU per milligrams Bacillus thuringiensis wettable powder was highest, 30.07% and 44.06%, respectively. The yields of the 5 biological insecticides were all significantly higher than the control treatment and the control agent. The yield of 20 billion spores per gram Beauveria bassiana microparticles was the highest, 36 016.80 kg/hm^(2). [Conclusion] Among the 5 biological insecticides, the 16 000 IU per milligrams Bacillus thuringiensis wettable powder on the potato Pleonomus canaliculatus was quickly and had a long duration, and was most suitable for potato Pleonomus canaliculatus biological control. The second was 20 billion spores per gram Beauveria bassiana microparticles, the potato preservation effect was more than 20%, the relative control effect was more than 30%. The third were 200 million spores per gram Metarhizium anisopliae Granules, 10 billion spores per gram Metarhizium anisopliae microparticles, the potato preservation effect was higher than 12%, and the relative control effect was higher than 30%.
作者
王勇
关学柱
王元中
杨正英
张磊
张廷金
WANG Yong;GUAN Xue-zhu;WANG Yuan-zhong(Yulong County Plant Protection and Quarantine Station,Yulong,Yunnan 674100)
出处
《安徽农业科学》
CAS
2021年第20期170-172,共3页
Journal of Anhui Agricultural Sciences
关键词
金针虫
马铃薯
生物杀虫剂
防效
玉龙县
Pleonomus canaliculatus
Potato
Biological insecticide
Control effect
Yulong County
