In recent years, there has been an increase in the occurrence of soybean field crops. The prevention and control measures are now described as follows:
At the age of adult worms, 90% of crystals of trichlorfon 1000 times, or 2.5% of deltamethrin Emulsion 2000 times, were sprayed on soy and pod-like crops. Soybean on-demand period, with 5% of insecticide per acre of phosphorus, its long-lasting efficacy, strong contact, can ensure that the entire growth period is not harmed by earthworms. If soybeans are sown, they can be sowed before sowing. In late July, the body was small and the drug resistance was poor. Can be used per acre with 3% of phoxim granules 5 kg or 14% of Le Sibu granules 1.5 kg, 50 kg of fine soil, sprinkled in the soybean rhizosphere, shallow or watered after spreading. If there was no prevention and control in the previous period, in late August, it was discovered that there were sporadic damaged plants in soybeans. Immediately use 90% of crystal trichlorfon or 50% of phoxim EC 800 to 1000 times to ditch the bean plants and use liquid fertilizer. Perforating the hole in the device can achieve good control effect.
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