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用生物农药Ｂｔ－７８１与化学农药敌杀死、氧乐果在武陵山茶场对茶尺蠖ＥｃｔｒｏｐｉｓｏｂｌｉｑｕａＷａｒｅｎ进行小区试验和大面积的防治示范。结果表明，每ｍｌ含１００～１６０亿活孢子的Ｂｔ－７８１悬浮剂２００和４００倍液、２．５％敌杀死乳油３０００倍液和４０％氧乐果乳油１０００倍液对茶尺蠖小区试验的防治效果，１２０ｈ分别为８７．９２％、７６．３７％、９４．４６％和５５．９０％，大面积示范防治区的调查结果与其基本一致。除Ｂｔ－７８１外，氧乐果和敌杀死对茶园蜘蛛的种群数量均有不同程度的不良影响。从防效看，虽然２．５％的敌杀死乳油对茶尺蠖的防效高于Ｂｔ－７８１，但其每亩的药剂成本要比Ｂｔ－７８１高，因此，化学农药氧乐果和敌杀死不宜用作茶尺蠖的防治药剂。Ｂｔ－７８１具有经济、安全、高效的特点，且无残留，不污染环境，对天敌无伤害，能确保茶叶的产量和品质，可以作为茶园防治茶尺蠖的有效生物制剂在大面积上推广使用。
With biological pesticides Bt-781 and chemical pesticides kill, Ometho in Wuling Shanchachang on the Ectropis obliquaWaren EctropisobliquaWaren community trials and large-scale prevention and treatment demonstration. The results showed that 100-160 million live spores per ml of Bt-781 suspension 200 and 400 times the liquid, 2.5% enemy killed 3000 times EC and 40% The control effect of large-scale model prevention and control area was consistent with that of the control in large-scale demonstration area at 120h, which was 87.92%, 76.37%, 94.46% and 55.90%, respectively. In addition to Bt-781, the number of omethoate and the enemy killed on the spider population of tea gardens have varying degrees of adverse effects. From the perspective of control effect, although 2.5% of the enemy killed the EC on the tea scallop control efficiency higher than Bt-781, but its cost per acre than Bt-781 high chemical pesticides and omethoate and enemies Kill should not be used as a control agent Cha Cha 蠖. Bt-781 is economical, safe and efficient. It has no residue, no pollution to the environment, no damage to natural enemies and can ensure the yield and quality of tea. It can be widely used as an effective biological preparation for tea garden prevention and control of tea scallions.