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3种植物源杀虫剂对韭菜迟眼蕈蚊的毒力测定和田间药效评价

作  者:
张田田;马冲;周超;路兴涛;孔繁华
单  位:
泰安市农业科学研究院植物保护研究所
关键词:
植物源杀虫剂;韭菜迟眼蕈蚊;毒力测定;防治效果
摘  要:
为筛选对韭菜迟眼蕈蚊防治效果好的环境友好型杀虫剂,开展了蛇床子素、苦参碱以及印楝素3种常见植物源杀虫剂对韭菜迟眼蕈蚊的室内毒力测定和田间药效试验。结果表明,采用胃毒触杀联合毒力法,药后72 h苦参碱、印楝素、蛇床子素的LC50值分别为36.94,99.95,197.07 mg/L。田间试验中,药后21 d,0.3%苦参碱水剂3 000,2 000倍液校正防效分别为72.85%、79.54%;0.5%印楝素乳油3 000,2 000倍液校正防效分别为69.10%、76.29%;0.4%蛇床子素乳油3 750,2 500倍液校正防效分别为65.14%、70.04%。
译  名:
Toxicity Determination and Control Effect of Three Botanical Pesticides Against Bradysia odoriphaga
作  者:
ZHANG Tian-tian;MA Chong;ZHOU Chao;LU Xing-tao;KONG Fan-hua;Institute of Plant Protection,Tai'an Academy of Agricultural Sciences;
关键词:
botanical pesticide;;Bradysia odoriphaga;;toxicity;;control effect
摘  要:
In order to screen efficient pesticides for controlling Bradysia odoriphaga,the toxicity determination and field trials of osthol,matrine and azadirachtin were carried out.The results showed that the LC50 values of matrine,azadirachtin,osthol were 36.94,99.95,197.07 mg/L,respectively.On the 21 st day,the control effects of matrine 0.3%AS 3 000,2 000 times liquid were 72.85%,79.54%,respectively.The control effects of azadirachtin 0.5% EC 3 000,2 000 times liquid were 69.10%,76.29%,respectively.And the control effects of osthol 0.4% EC 3 750,2 500 times liquid were65.14%,70.04%,respectively.

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