Effect of Metarhizium anisopliae CQMA421 on Control of Peanut Grubs
- Received Date: 10/07/2023
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Key words:
- Metarhizium anisopliae CQMA421 /
- peanuts /
- grubs /
- prevention and control effects
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.
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