Symptoms and control methods of maize rough dwarf disease?

Symptoms of maize rough dwarf disease:

The diseased corn seedlings are dark green, the leaves are stiff, the heart leaves can't grow normally, and the diseased corn plants grow relatively slowly, resulting in thick and short maize internodes; When maize rough dwarf disease is in the 9- 10 leaf stage of maize, the diseased maize plants are obviously dwarfed, and the upper internodes are short and swollen, and most of them can't heading and bear fruit, resulting in fewer branches, fewer ear types, serious dwarfing of maize plants and fewer filaments. In severe cases, corn cannot bear fruit.

Control methods of maize rough dwarf disease;

In order to control maize rough dwarf disease in time, effective measures should be taken to control it. Agricultural personnel should strengthen the management of corn fields and choose high-quality and disease-resistant corn varieties for sowing; The maize rough dwarf disease can be effectively prevented and controlled by clearing the diseased maize plants in time, taking them away from the farmland planting area and destroying them. Strengthening ventilation management among maize plants, selecting chemicals for seed dressing, and selecting internal insecticide for seed dressing can effectively control Laodelphax striatellus at seedling stage and reduce the spread of maize rough dwarf disease.

When sowing corn, 2% seed coating agent can effectively prevent the harm of Laodelphax striatellus, and at the same time, it is beneficial to cultivate strong seedlings and improve the disease resistance of corn. After corn is sown, chemical agents are selected to treat the soil before germination, such as 40% acetochlor hydrogel suspension and 50% diazepam. 550-575 ml/mu, sealed with 30 kg of water, can effectively control maize rough dwarf disease, and the effect is extremely remarkable.

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