At present, the spring maize has been gradually heading and raising flowers. If the rainfall is high, the humidity is high, and the temperature is high, corn can easily infect large-spot disease. After the brown-strip-shaped long spots appear on the leaves, the premature death of the leaves will affect the development of corn kernels. As a result, corn grain is not full and the yield is significantly reduced. Therefore, we must step up prevention and control to protect the leaves. Specific prevention methods are as follows:
During the period of corn heading and flowering, in case of rainy days in a continuous day, it should be caught in an instant sunny day, spray 3000 to 4000 times 30% aqueous solution of difenoconazole, or 600 times 20% aqueous solution of copper thiazolyl, or 1500 times 33.5% quinoline copper aqueous solution, or 1000 times 41.6% copper hydroxide for prevention. After the rain, pay attention to the inspection of the leaves and found that there are light brown dry and strip-shaped long spots appear on the leaves, but also continuous spraying 2 to 3 times the above-mentioned fungicide to prevent and control, spraying once every 7 to 10 days. Spray all the leaves evenly to start dropping drops of water.
Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
Xi'an Double H Health Technology Co., Ltd , https://www.xadoubleh.com