Prevention and pest control of sweet corn in spring

(a) The main diseases of corn include large and small leaf spot and sheath blight, and rust occurs in some places. According to the author's experience, 200 ml of Kefuling and 2 packets of Jinggangmycin powder are sprayed with good results. The prevention of diseases is the mainstay. During the jointing period, both the application of pesticides before and after tasseling are required.

(b) Insect pests include corn borers, aphids, and ground tigers. After emergence, 200 grams of dipterex were sprayed on the seedlings to prevent the tigers. The dimethoate and Dagong could be used for the control of aphids.

(b) Rat poisoning is a major hazard to winter corn, even causing particles to fail. Rat killing methods include killing and electrocuting. Drug killing should be carried out before emergence and before tasselling. When the pollination is solid, it is no use to put any poison bait in the sweet corn field, and only electric cats can be used to kill it. When using electric killing, it must be carried out at night, and there are strict guards. People are cut off from electricity to prevent accidents.

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