Three measures for controlling corn rough dwarf

Maize rough dwarf disease is a viral disease caused by the transmission of poisoning by SBPH. The coincidence of the peak of transmission of poisoning of Laodelphax striatellus with the susceptible period of maize infestation is prone to outbreak, which will cause devastating damage to corn production. Maize planting areas should adopt comprehensive prevention and control measures to “mainly choose the safe planting period, supplemented by the promotion of planting disease-resistant varieties, combined with the prevention and control of Laodelphax cornuta”.
Choosing appropriate sowing to promote the early sowing of spring corn, summer sowing late corn, not the type of semi-summer corn, so that the susceptible period of corn staggered with the peak of the transfer of milk thistle. Spring maize was planted before mid-April; summer corn was postponed until 10-15 days after harvest.
The selection of disease-resistant varieties through the observation of field disease in recent years, Zhongyu 4, Suyu 19, Suyu 10, Nongda 108 and other varieties are more resistant to disease. It should be noted that disease-resistant species can also be diseased, and production must be coordinated with other measures to achieve the desired control effect.
Appropriate control of the planthoppers in the peak period of the generation of Laodelphax striatellus at the seedling stage, 3 to 5 days once the drug once, spraying the field hoe, head, ditch side weeds. Applicable drugs include nitenpyram, etofenprox, deltamethrin, etc. Silicone additives can be added.
In addition, sporadic disease strains should be removed early in the field; individual severely affected crops should be timely changed to other crops.

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