甲氰胺混配乳油对柑桔全爪螨的药效试验及联合毒力测定

由甲氰菊酯（灭扫利）和水胺硫磷复配而成的22％甲氰胺混配乳油，其稀释3000～4000倍液，对柑桔全爪螨（Panonychuscitri）有良好的防治效果，室内药效达99．38％～100％。田间药效为94．70％～100％。室内毒力测定结果，甲氰胺混配乳油的LC50为21．02mg／L，灭扫利的为28.75mg／L，水胺硫磷的为153.62mg／L，甲氰胺的毒力显著高于两种单体；共毒系数达205.79，表现出显著的增效作用。

Control Efficacy and Combined Joint Toxicity of Jiaqingan EC to Citrus Red Mite, Panonychus citri (McG)

Jiaqingan 22% emulsifiable concentrates (EC) is a mixed pesticide which mainly mixed fenpropathrin (meothrin) with isocarbophs. The efficacy of Jiaqingan 22% EC against Panonychus citri by spraying with active ingredient active ingredient 05. 00-73. 33 mg/L (diluted by 3 000-4 000 times ) were 99. 38 %-100 % from the laboratory experiments and 94. 70% -100% from the field trials. The LCS, of Jiaqingan, fenpropathrin and isocarbophs to P. citri were 21. 02 mg/L, 28. 75 mg/L and 153. 62 mg/L respectively, according to toxicity determination. The Jiaqingan had more efficacy compared to fenpropathrin or isocarbophs. The co-toxicity coefficient of Jiaqingan was 205.79. The significant synergism was obtained.