It is understood that the efficacy of ethyl multi- bactericides is not bad, using Ai Shishi 60 g / liter of ethyl spinosad suspension 30 ml per acre, showing better quick-acting effect on the young larvae of Cnaphalocrocis medinalis. The effect and quick-acting effect are better than Avi-fluoroamide. The killing effect on the older larvae is equivalent to Avi-fluoroamide. The insecticidal effect is more than 89.5% in the 3 days after the drug, and 95.7% in the 7 days after the drug. The day is still over 85%.
In the corn seedling stage, the test of beet armyworm showed that the spraying of Ai Shishi 60 g / liter of ethyl spinosyn suspension 200 times solution, 3 hours after the drug can be seen dead insects, the drug control effect reached 96.3% after 3 days The control effect was 95.1% in the 7 days after the drug, and the control effect was still 92.1% in the 10 days after the drug, which was better than the 5% emamectin benzoate emulsifiable concentrate 1000 times. The experiment of controlling eggplant thrips showed that the spraying of Ai Shishi 60 g / liter of ethyl spinosad suspension 2000 times solution, the anti-effect of 3 days and 5 days after the drug was stable above 96%, 7 days after the drug The control effect is still above 95%, showing good quickness and effectiveness.
The experiment also found that the application of Ai Shishi 60 g / liter of ethyl spinosad suspension on different crops, the amount of insects such as field spiders, ladybugs and other beneficial insects did not differ from the blank control. The drug is suitable for the prevention and control of large-scale control of rice leaf roller and the production of pests such as Plutella xylostella, beet armyworm, cabbage caterpillar and thrips in the production of pollution-free vegetables.
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