4%蜜果速杀乳油的研制及其杀虫效果测定

Development of 4% Miguosusha Concentrate and Its Control Effect on Aphides

用水提法从无花果叶中提取杀虫有效成分,选取适当的溶剂、乳化剂、稳定剂等配成4%蜜果速杀乳油;对供试蚜虫进行室内毒力测定,结果表明,致死中浓度LC50为112μg/g,田间药效试验表明,300倍液喷施3 d后校正虫口减退率为66.51%。

4 % Miguosusha concentrate was made up by the water extract from fig, solvent, emulsifier and stabilizer. LC50 of 4 % Miguosusha concentrate on aphides in laboratory was 112rig/g, The correct mortality was 66.51% in field spray with 300-fold fluid of 4% Miguosusha after 3 days.