三唑磷防治第一代席草螟药效试验

Effectiveness of Insecticide Triazopbos on first-generation of Bactra lanceolana

三唑磷防治一代席草螟试验结果，三种剂量均有显著效果，其中以公顷施药量１８７５毫升的防效达９０％左右。

The results of the experiment showed that 20%ECtriazophos with tree dasages demonostrated good effect to con-trol Bactra lanceolana. Using 1.875 kg/ha of triazophos,90%of control was obtained.