25%毒·唑磷乳油防治稻纵卷叶螟药效试验

Control Effects of 25% Chlorpyrifos·Triazophos EC on Rice Leaf Roller in Rice Field

为探索常规杀虫剂防治稻纵卷叶螟效果下降的替代农药,采用25%毒.唑磷乳油进行了田间药效试验。结果表明,25%毒.唑磷乳油防治稻纵卷叶螟虽然速效性不够理想,但具有持效期长、对2-3龄幼虫防治效果较好的特点,在稻纵卷叶螟偏重发生时,可达到理想的防治效果。未发现25%毒.唑磷乳油对水稻产生毒副作用,因此,是防治稻纵卷叶螟较理想的药剂。

25 % Chlorpyrifos· Triazophos EC was tested to estimate its control effect on rice leaf roller. The results showed that the agent with a long effect time had the better control effect on larvas of rice leaf roller with 2-3 instar,and the agent had the ideal control effect when rice leaf roller was serious in rice fields. The 25 % Chlorpyrifos · Triazophos EC without the side-effect to rice is the ideal agent for controlling rice leaf roller.