Effect of Metarhizium anisopliae CQMA421 on Control of Peanut Grubs
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摘要: 为明确金龟子绿僵菌CQMA421对防治花生蛴螬的减药防控效果,本试验采用撒施、油悬浮剂拌种和粗喷雾方法,以及与不同化学农药混用的试验设计探究金龟子绿僵菌CQMA421对花生地下害虫蛴螬的防控效果及其对花生产量的影响.结果表明:单独应用绿僵菌CQMA421生物农药的4种处理对蛴螬的防治效果显著低于2种与化学药剂混用处理;采用50%氯虫苯甲酰胺FS 60 mL拌种加绿僵菌CQMA421 OF 60 mL下针期粗喷雾处理杀虫效果、保果率和产量最好,分别为82.3%,83.99%和279.23 kg/667 m2,而且操作方便、省工省时,可以进行大面积推广应用; 667 m2用5%辛硫磷颗粒剂6 kg效果与绿僵菌CQMA 42 160 mL拌种处理相当,从化学农药减量及绿色防控需求来看,应逐步被替代.
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关键词:
- 金龟子绿僵菌CQMA 421 /
- 花生 /
- 蛴螬 /
- 防控效果
Abstract: In order to clarify the efficacy of Metarhizium anisopliae CQMA421 on reducing pesticide use for control of peanut grubs, this study used the methods of broadcasting, oil suspension seed dressing, coarse spraying and mixing with different chemical pesticides to explore the control effect of Metarhizium anisopliae CQMA421 on peanut grub and its influence on peanut production. The results showed that the control effect of four treatments of Metarhizium anisopliae CQMA421 along on white grubs was significantly lower than that of two treatments of mixing with chemical agents. The treatment of 60ml of 50% chloramphenicol Benzamide FS seed dressing plus 60mL of Metarhizium anisopliae CQMA421 coarse spray at the lower needle stage has the best insecticidal effect, fruit retention rate and yield, which were 82.3%, 83.99% and 279.23 kg/667 m2, respectively. Moreover, it is easy to operate, saves labor and time, and can be widely promoted and applied. The effect of using 6 kg of 5% per 667 m2 is equivalent to that of using 60mL Metarhizium anisopliae CQMA421 for seed dressing treatment. From the perspective of demanding on chemical pesticide reduction and green prevention and control, the phoxim granules treatment should be gradually replaced.-
Key words:
- Metarhizium anisopliae CQMA421 /
- peanuts /
- grubs /
- prevention and control effects .
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