5种药剂对兰州百合桃蚜的室内杀虫活性及田间防治效果
Indoor Insecticidal Activity and the Effect of Field Control of 5 Agents Against Lilium davidii Myzus persicae
张学通 1赵亚丽 1孙志蓉2
作者信息
- 1. 定西职业技术学院,甘肃 定西 730500
- 2. 北京中医药大学中药学院,北京 102488
- 折叠
摘要
为筛选对兰州百合种植区桃蚜更为敏感的抗蚜药剂,进行了5种农药的室内毒力测定和田间药效试验.结果表明:50%氟啶虫胺腈WG对兰州百合桃蚜的毒力最高,25%吡蚜酮SC毒力最低,24 h LC50分别为0.179 8 mg/L和4.754 26 mg/L.各药剂对百合桃蚜毒力大小依次为氟啶虫胺腈>螺虫乙酯>环氧虫啶>噻虫嗪>吡蚜酮.田间防效试验结果表明,参试药剂不同剂量施药后蚜虫虫口密度均显著降低,处理7d后,各处理对百合桃蚜防效在96.89%～100.00%,且无药害发生.各药剂的推荐有效成分用量分别为:50%氟啶虫胺腈WG 166.67～221.67 mg/L,22.4%螺虫乙酯SC 53.33～60.54mg/L,25%环氧虫啶WP 166.67～200.00 mg/L,30%噻虫嗪SC 100.00～150.00 mg/L,25%吡蚜酮SC 100.00～166.67 mg/L.
Abstract
In order to screen the anti-aphid agents which are more sensitive to Myzus persicae in Lilium davidii growing area,the lab-oratory toxicity and field efficacy experiments of 5 pesticides were carried out.The toxicity of each agent to Lilium davidii Myzus persicae was in the order of Fluridine cyanil>Spirulin ethyl ester>pyridine>thiamethoxam>pyrhexone.The results of field control ex-periment showed that the pest density of aphids decreased significantly after different doses of the tested agents.After 7 days of treat-ment,the control efficiency of each treatment was 96.89%～100.00%,and no harm occurred.The recommended effective dosage of each drug was 50%fluridifenil WG166.67～221.67 mg/L,22.4%Spiroxyl SC 53.33～60.54 mg/L,and 25%cycloxidine WP166.67～200.00 mg/L,30%thiamethoxam SC100.00～150.00 mg/L,25%pyrifolone SC100.00～166.67 mg/L.
关键词
兰州百合/桃蚜/杀虫剂/室内毒力/田间防效Key words
Lilium davidii/Myzus persicae/insecticides/indoor toxicity/field control efficiency引用本文复制引用
基金项目
现代农业产业技术体系建设专项(CARS-21)
定西市科技计划(Dx 2020N08)
出版年
2024
NETL
NSTL
维普
万方数据