Maize big and small spot disease prevention techniques
Maize big and small spot disease is generally more serious in the tasseling and silking stage of corn. It is very difficult to spray pesticides on corn at this stage: First, corn plants are high, spraying liquids is difficult; second, corn leaf area is large and the amount of liquid used is large; third, corn leaves are scratched, paddling, and spraying is inconvenient. Fourth, there are many rainy days, the liquid loss is large, and the control effect is poor. If after the emergence of corn, the five-leaf stage to control corn, small spot, can solve the above four difficulties, the control effect is also very good. First, determine the control object, one is susceptible to corn, small spot disease varieties such as "meeting 4"; Second, over the years occurred in corn, small spot disease continuous crop fields. Followed by spraying: When corn grows, when it reaches the five-leaf stage, 50% carbendazim WP or 50% thiophanate-methyl is used per acre and the water is weighed 75 kg and the corn leaves are sprayed. 7-10 days spraying once, continuous spraying 2 3 times, the control effect is better. Masks are a kind of sanitary products. Generally, they are worn on the mouth and nose to filter the air entering the mouth and nose to block harmful gases, odors, droplets, viruses and other substances. They are made of gauze or paper. Disposable Face Mask,Non-Woven Face Mask,Medical Surgical Mask Shandong Kangshun Daily Products Co., Ltd , https://www.centurybenifit.com
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