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How to control soybean field?
At the adult stage of the worms, it's recommended to spray 90% trichlorfon crystals diluted 1000 times, or 2.5% deltamethrin emulsion diluted 2000 times, on soybean and pod crops. During the critical growth period of soybeans, applying an insecticide at a rate of 5% per acre can provide long-lasting protection. This method offers strong contact action, ensuring that the plants remain undamaged throughout their entire growing season. If planting is about to begin, the treatment can be applied before sowing for preventive purposes.
In late July, when the worms are still small and have weak resistance, you can apply 5 kg of 3% phoxim granules or 1.5 kg of 14% Le Sibu granules mixed with 50 kg of fine soil. Spread this mixture around the soybean rhizosphere, either by scattering it lightly or watering it in after application. This helps to target the pests effectively.
If no preventive measures were taken earlier, and by late August, some damaged soybean plants are observed, immediate action should be taken. Use 90% trichlorfon crystals or 50% phoxim EC diluted between 800 to 1000 times. Apply the solution directly into the soil around the affected plants, either by drenching or using a liquid fertilizer system. This approach can significantly reduce worm damage and improve crop health. Always follow safety guidelines and local regulations when handling pesticides.