In the current agricultural production, many farmers have used pesticides to control pests, but many farmers have no effective measures for the prevention and control of underground pests. Today, Xiaobian brings you several special treatments for underground pests. The pesticide is introduced to everyone. Methyl isoflavin is a highly toxic pesticide with strong contact, stomach poisoning and systemic action on pests. It has a wide spectrum of insecticidal activity and long residual effect, and its efficacy lasts for more than 1 month. It is suitable for corn, wheat and peanuts. Underground pests (including nematodes) of various crops such as beans, potatoes, and tobacco have good control effects, and can also control other pests such as aphids, red spiders, armyworms, tobacco budworms, and peaches. At present, the main processing preparations of methyl isoflavin include emulsifiable concentrates, granules and fumigants. To control underground pests with methylisophosphorus, the emulsion can be diluted and mixed with the seed by first diluting 40% of methyl isoflavone emulsifiable concentrate 50 ml to 5 kg of water, then spraying evenly on 50 kg of corn with a sprayer or On the wheat seeds, the seeds are turned while spraying, and after the liquid is completely absorbed by the seeds, it can be spread and dried. It is also possible to use the emulsifiable concentrate as "poisonous sand" by diluting 40 ml of methyl isoflavone emulsifiable concentrate with 250 ml of water to 1 kg of water per acre, mixing it into 50 kg of fine sand, and sprinkling it during sowing ( Or the hole, then cover the soil. The most convenient method is to use granules by using 1.5% to 2.0 kg of 5% methyl isoflavone granules when planting, and then spreading into the soil with sowing, or applying in the ditch (or a hole). Methyl iso-phosphorus fuming agent is mainly used to control voles. It should be noted that the pesticide is highly toxic to humans and animals. Its oral toxicity is similar to that of methamidophos. The skin contact toxicity is 4 to 5 times higher than that of methamidophos. Therefore, it can only be used for early pest control in crops with long growing season. According to regulations, it can not be used for crops such as vegetables, fruit trees, tea, and Chinese herbal medicines. Moreover, whether it is to control underground pests or to control other pests, methyl isoflavin can only be used for seed dressing or soil treatment. Foliar spraying is not allowed, and it cannot be applied within 45 days before harvesting of food crops. More pesticide knowledge , please pay attention to China Pesticide Network
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