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Fungicides in agriculture production are widely used, while it is important to pay attention to the
following points:Give priority to prevention and combine treatment with prevention. Use protective
fungicide before the occurrence of disease, use systemic fungicide or protective fungicide mixture
during the first period of disease.Take the corresponding control strategy according to the law of
disease. For example, disasters caused by aphids and plant virus should be handled in the poisonous
pests of crop of insects. The carrier should be buried under soil after being handled.
Find specific ways to solve problems. In view of the crop prevention disease, select effective drugs
because medicine cannot cure all diseases, and we shouldn’t blindly pursue high efficiency and widely use
fungicide.Pay attention to the use of some commonly protective fungicides. Do not deliberately pursue
efficiency, internal absorption and broad spectrum fungicide. Some commonly used agent has good control
effect, such as Bordeaux and copper agent, lime sulfur mixture, chlorothalonil, mancozeb, which are widely
used in recent years.Use different fungicides reasonably. It is not correct to continue to use a fungicide,
or use fungicides for many times during the same growth period. It is necessary to limit the frequency of
using systemic fungicide and use different fungicides with different mechanisms.
Blend rationally. Long term use of systemic fungicides will allow the emergence of drug
resistant bacteria. When using, we can alternate protective fungicide such as the use of mancozeb. To prevent
incorrect confusion, such as mancozeb cannot mixed with copper agent, mercurial, strong alkaline mixed pesticide.