The same crop, the adjacent plot, someone who spent twice the money of others can not prevent the disease, why? Clean the sprayer and the pipeline before the fight, do not miss the spray, re-spray, etc. clear. Is there a "doorway" that needs attention when you fight drugs, after you fight drugs, and when you fight drugs? 1. Clean up the sick body. Diseased branches, diseased leaves, diseased fruits and even diseased plants are the source of infection. Cleaning them out of the shed is to reduce the source of infection, and the effect of fighting drugs is naturally good. 2, calculate the date of the fight. Most farmers are counting on “taking a drug for a week or soâ€. But the most important thing to prevent and cure diseases is to regulate environmental conditions, rather than simply fighting for drugs. Some farmers can do not fight drugs for five or sixty days, and only fight drugs at the key point of the fight. For example, the day before watering, the day before the cloudy day, when the first time the key diseases are discovered. Because it does not fight at this time, it may cause a large loss. 3, choose the time to fight drugs. One of the principles for determining the time of fight is to maintain ventilation. For example, vegetable greenhouses should not be used before the shed in the morning, because the moisture in the shed is very large throughout the night, and more water vapor is added in the morning to promote the rapid infiltration of the bacteria. The second principle is to avoid high temperature glare, such as noon in summer. If you take medicine in the afternoon, you should finish it half an hour or even an hour before the wind is closed to ensure that moisture is discharged. 4. Use the right medicine. If it is disease prevention, you should clearly know what diseases should be prevented at the time. For example, Botrytis cinerea is important in winter and spring prevention, and the virus disease is heavy in summer and autumn. If it is cured, the medicine must be symptomatic, and it is impossible to find an expert. Look, you can't guess playing and walking. 5. Dilute properly. Pesticides should be used as indicated and can be added slightly depending on the situation, but it is not recommended to double use. If you feel that the medicine is not good, you can switch to another medicine, and the second is to improve your spraying technique. 6, reasonable mix. In the early stage of the disease, a protective agent may be used to mix the systemic agent. Do not mix pesticides of the same composition to avoid phytotoxicity. Macromolecular organic drugs can generally be mixed, and small molecule drugs should be cautious, especially alkaline drugs. 7, pay attention to the effect of the spray. The best effect of the spray is to "fill" the "small" water point on the back of the blade. This is determined by the pressure and walking speed of the sprayer. It is easy to contiguous when the water is slow, and the water is thin or not hit, and the pressure is small. Therefore, check the effect of the spray when you start spraying. 8. One or two days after the fight, pay attention to the epidemic. This is to determine if you need to fight again and what medicine to take. For most pesticides, the same ingredient should not be used more than twice. More pesticide knowledge , please pay attention to China Pesticide Network Card Water Meters,Prepaid Water Meters,Water Meter Fees,Water Meter Reader Ningbo Safewell Plumbing Co., Ltd. , https://www.safewellbrass.com