How to use pesticides Scientific use of pesticides（c）

Eight, can kill: belong to copper hydroxide, trade name, also known as crown bacteria copper, Feng security, blue shield and so on. In vegetables can be used to control bacterial diseases. Because of its strong protective effect, before the onset can be used to control fungi, Oomycetes disease. Because it is alkaline and inorganic copper, it can only be used with a stable structure of organic fungicides, such as chlorothalonil and so on. And can not be mixed with acidic drugs. It is also not appropriate to mix medications containing metal ions and foliar fertilizer. For mixed with the chemical reaction of the United States and the United States, thiophanate-methyl, carbendazim, diethofen, etc. also should not be mixed, after the mixture of precipitation, condensation and other colloid damage should also avoid mixing, it is not clear should be Test again to determine, so as to avoid a drug injury.

Nine, deuterin Zinc: can prevent a variety of fungal diseases, but the role of powdery mildew is poor. Prevention and treatment of early blight, late blight, spot blight, leaf mold, anthracnose, gray mold, eggplant sponge blight, brown-spot disease, etc., pay attention to squash vegetables sensitive to zinc, medication should strictly control the concentration can not be too large .

Ten, Cheson zinc: is a broad-spectrum, quick-acting protective fungicide. Other names 安泰生. Cabbage downy mildew prevention and control, cucumber downy mildew, tomato disease sooner or later, PTS Zinc is a protective fungicide, must be in the disease before or during the onset of spraying. Do not mix with copper and alkaline agents.

Cymbidium Cyanide: The mechanism of action and features are mainly to prevent the spore germs of pathogenic bacteria, the host bacteria also have a killing effect on the host. It has protective, therapeutic and systemic effects and is effective against downy mildew and blight. Cyclocarbamide alone with short duration of efficacy, and protective fungicides such as propineb mixed with zinc, can extend the duration. Suitable for crop cucumbers, grapes, peppers, potatoes, tomatoes and so on. Control objects downy mildew and disease.

Twelve, dimethomorph: other Chinese name: Anke is widely used in vegetable downy mildew, disease, seedling damping-off disease, such as tobacco black shank by the flagellate bacteria subfamily fungal disease prevention and control, with Internal absorption activity without considering the pathogenic fungal drug resistance of the premise, the efficacy than the current widely used metalaxyl, cymoxanil, phosphine, oxaliplatin Ling as high. Used alone has a relatively high risk of resistance, so often with mancozeb and other protective fungicides used in combination to delay the generation of resistance.