蝴蝶兰红蜘蛛药剂防治筛选

Selection of Acaricides for Control of Red Spider Mite on Butterfly Orchid

经鉴定,福建省蝴蝶兰上的红蜘蛛为太平洋伪叶螨(Tenuipalpus pacificus Baker)。在大棚中测定了15%苯丁·哒螨灵乳油(1500倍液)、45%石硫合剂结晶(150倍液)、73%炔螨特乳油(2000倍液)、1.8%阿维菌素乳油(2000倍液)、20%甲氰菊酯乳油(1500倍液)、20%三唑锡悬浮剂(2000倍液)和20%丁氟螨酯悬浮剂(2500倍液)7种杀螨剂对蝴蝶兰红蜘蛛的防效,结果表明:从速效性、最高防效性及持效性方面来看,15%苯丁·哒螨灵乳油、45%石硫合剂结晶、73%炔螨特乳油和1.8%阿维菌素乳油对蝴蝶兰红蜘蛛的防效最好,与其他3种杀螨剂存在明显差异。

The red spider mite on butterfly orchid in Fujian province was identified as Tenuipalpus pacifwus Baker. In green- house, the control efficiencies of 15% Fenbutatin · Pyridaben EC （ 1500 × ）, 45% Lime sulfur JG （ 150×）, 73% Propargit EC （2000 × ）, 1.8% Abamectin EC （2000 ×）, 20% Fenpropathrin EC （ 1500 × ）, 20% Azocyclotin SC （2000 × ） and 20% Cyflu- metofen SC （2500 ×） against red spider mite on butterfly orchid were tested. The results showed that： in terms of fast - acting property, control efficiency and persistent effect, 15% Fenbutatin · Pyridaben EC, 45% Lime sulfur JG, 73% Propargit EC and 1.8% Abamectin EC had better effects, which were significantly better than other three acaricides.