The corn kernels grow spirally when they grow, and the longer they are rolled, the tighter they bend. They are not fruitful. They are caused by spotted suckers and cause damage to the corn. The symptoms are distorted. As a whip, the surface of the heart leaf is shrunken, gradually transparent and irregular holes are formed, and the 6-8 leaves are enclosed in the 5th leaf and cannot be extracted, and serious roots show birth. 50% carbendazim can be used to irrigate the roots to relieve the disease. The specific usage is: dilute 50% carbendazim to 500 times, inject along the stem, and fill 50 to 100 ml of each diseased sap. Where conditions permit, it can cooperate with topdressing zinc fertilizer and foliar fertilizer. For plots of rotten heart disease caused by spotted badger, 3%% of acetamiprid (morabiran) and other insecticides can be sprayed, and foliar fertilizers such as foliar foliar, tsunami and tianfengsu, and plant growth can be applied at the same time. Regulators to promote the recovery of corn. At the same time, it is necessary to strengthen field management, catch the fine weather, and organize farmers to carry out cultivators and shovels to evacuate the soil to increase temperature and promote corn growth and development. For plots of rotten heart disease caused by spotted badger, 3% acetamiprid (morabiran) and other insecticides can be sprayed, and fungicides such as bacteriocin, brassin, and Tianbao can be applied. Foliar fertilizer and plant growth regulators to promote the recovery of corn. Third, for the serious top of corn rot, can take 50% carbendazim can be selected to ease the condition, the specific usage is: 50% carbendazim diluted 500 times, along the stem into each Irrigate 50-100 ml. You can also use Green Heng 6 plus Tianbao spray. Where conditions permit, it can cooperate with topdressing zinc fertilizer and foliar fertilizer. The planted corn has dwarfed to varying degrees, and the top leaves may have short, wrinkled and twisted phenomena. The leaves often have strips of yellowish stripes along the veins, and the internodes of the stem base are short, and there are often insect-like borehole-like cracks, longitudinal sections. The vascular bundle becomes brown. The provincial plant protection station survey and identification, this is corn top rot. At present, it has become more prevalent in counties (cities, districts) such as Jidong and Yi'an. In addition, some cities and counties also developed corn rotten disease caused by spotting and sucking by spotted razor clams. The main difference between the symptoms and top rot disease is that the roots are normal.
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