CAJ | 학술논문

用 Potter 喷雾法测定了联苯肼酯对柑橘全爪螨的室内毒力，并通过田间药效试验评价了联苯肼酯对柑橘全爪螨的防治效果。结果表明，联苯肼酯对柑橘全爪螨的 LC50为95．37 mg/L、对照药剂哒螨灵的 LC50为228．09 mg/L，联苯肼酯的毒力为哒螨灵的2．39倍。2011-2012年田间药效试验表明，药后1 d，43％联苯肼酯悬浮剂165、195、239 mg/kg 处理的防效为50％～60％，明显低于15％哒螨灵乳油75 mg/kg 处理的防效；药后3 d，43％联苯肼酯悬浮剂239 mg/kg 处理的防效达到75％以上，与15％哒螨灵乳油的防效相当；药后15 d，195、239 mg/kg 处理的防效为88．63％～91．23％，显著高于15％哒螨灵乳油的防效。本试验表明，43％联苯肼酯悬浮剂对柑橘全爪螨的速效性较差，但持效期长，药效可持续15 d，是防治柑橘全爪螨的较好药剂之一。
용 Potter 분무법측정료련분정지대감귤전조만적실내독력，병통과전간약효시험평개료련분정지대감귤전조만적방치효과。결과표명，련분정지대감귤전조만적 LC50위95．37 mg/L、대조약제달만령적 LC50위228．09 mg/L，련분정지적독력위달만령적2．39배。2011-2012년전간약효시험표명，약후1 d，43％련분정지현부제165、195、239 mg/kg 처리적방효위50％～60％，명현저우15％달만령유유75 mg/kg 처리적방효；약후3 d，43％련분정지현부제239 mg/kg 처리적방효체도75％이상，여15％달만령유유적방효상당；약후15 d，195、239 mg/kg 처리적방효위88．63％～91．23％，현저고우15％달만령유유적방효。본시험표명，43％련분정지현부제대감귤전조만적속효성교차，단지효기장，약효가지속15 d，시방치감귤전조만적교호약제지일。
Toxicity and field control effect of bifenazate against Panonychus citri McGregor were evaluated by Potter-spraying method and field experiments.The results showed that the LC50 values of bifenazate and pyrid-aben were 95.37 mg/L and 228.09 mg/L,respectively,and the toxicity index of bifenazate was 2.39.The field experiments conducted in 2011 -2012 showed that the control effect of 43% bifenazate suspension was 50% to 60% at the concentration of 165,195,239 mg/kg one day after treatment,significantly lower than that of 15%pyridaben emulsifiable concentrate at the concentration of 75 mg/kg (about 70%).Three days after treatment, the control effect of 43% bifenazate at the concentration of 239 mg/kg was equivalent with that of 15% pyrid-aben,with control efficacy of over 75%.After fifteen days,the control effect of 43% bifenazate at the concen-tration of 195,239 mg/kg were 88.63% - 91 .23%,significantly higher than that of 15% pyridaben emulsifiable concentrate.These results demonstrated that 43% bifenazate was one of the ideal acaricides against P .citri ,which took effect later than 15% pyridaben,but had more persistent control effect with persistence pe-riod of 15 days.