The principle of "six must six" for pesticide selection

Principle 1: Choose symptomatic and pollution-free drugs, and do not blindly choose and use poison. Each kind of bactericidal or insecticide has its range of disease prevention and treatment, and it is also necessary to consider the selection of pollution-free pesticides on the basis of the right medicine. At present, there are common remedies for pollution-free diseases such as: prevention and control of round rotten fruit disease, and how many internal injuries Bacteriophage, jinggangmycin, methyl thiophanate, chlorothalonil, etc., protective with mancozeb (Best Health, Spray, etc.), Isocarbazide (Puppyin), Fumex, Detoxification Special, Bordeaux liquid, etc.; prevention and treatment of red spots and black spot disease are ethyl phosphorus aluminum (ineffective for rotten fruit), mancozeb (Dasheng, spray, etc.), Bao Li'an (polymycin, polyoxomycin) ), Bordeaux mixture, bacteriophage, chlorothalonil, iprodione (coumaine), etc.; control of apple leaf curler, cotton bollworm, peach heartworm, and other food-leaved fruit toxic dying sputum (also known as Lesburn, also Treatment of cotton aphid and Kang's whitefly, green blind mites), diazinon (agricultural music), BT biological insecticide, methomyl (wanling), inulin (cypermethrin, etc.); , apple red spider and two-spotted spider mites (white spider) have avermectin, triazolium tin; control of the gold leaf miner moth with chlorpyrifos, triflumuron and so on. Use 哒螨灵(螨螨净等) or tetrazine (螨死净, etc.) to control the two-spotted spider mites, use tetramethylazine to control the spider mites and apple red spiders, and use scorpion to control the spider mites or Apple red spider eggs, carbendazim or methyl thiophanate to control red spot disease, with polymycin to prevent round rotten fruit disease.

Principle 2: It is necessary to use more simple and remedy drugs, with no or less use of compounding and special medicine. Since simple drugs are mostly basic drugs for compound drugs, many compound fungicides have carbendazim. After the compound drug is renamed, the active ingredient is carbendazim, but it can be sold at a high price with 1kg 50% carbendazim 20 yuan. Left and right, after the name change, you can sell for more than 40 yuan. Therefore, it is generally advocated to use the "old" medicine of pure quality, with no or less use of compound medicine. At the same time, it can be solved by a medicine without using two kinds of medicines, and can be solved by using a combination of medicines and therapies. For example, chlorpyrifos can simultaneously control apple aphid, Kang's whitefly, green blind, apple leaf curler, cotton bollworm, Peach worms and other pests, Bordeaux mixture and azoles (Fuxing, etc.) not only prevent rotten fruit and prevent defoliation, avermectin is resistant to Hawthorn red spider, apple red spider and anti-two-spotted spider mites.

Principle 3: To use more drugs from famous brands, no small factories or miscellaneous drugs. In general, imported brand-name drugs are more reliable than domestically produced drugs. At the same time, the quality of domestic famous brand enterprises is more reliable than that of miscellaneous drugs, and the quality of large manufacturers is more reliable than that of small manufacturers.

Principle 4: If you want to calculate the cost and price, don't spend money. The purpose of reducing costs is to increase efficiency. In most of the production, there are more than 20% cost-saving space for pesticides. A considerable number of fruit farmers think that they can lay down bugs and cure diseases. No matter the cost, the worst is to spend well. Money bought medicines that could not cure pests and diseases. The price of each active ingredient can be calculated according to the content of the active ingredient, and then compared with the price of the active ingredient of the conventional pesticide, which one is cheaper to use; the compound medicine generally has a higher price.

Principle 5: Look at the labels and packaging, don't be fooled. A look at the three certificates, production license, pesticide registration certificate, quality standard certificate, the three certificates are indispensable; second, see if there are active ingredients and content, are indispensable; three see whether there is a factory inspection certificate, there is no failure; Fourth, look at the factory name, address, mail code, production date, batch number, shelf life, the lack of one is unqualified; five to see whether the packaging is shoddy, the packaging mouth is loose. At the same time, the pesticide should be used according to the dosage specified by the pesticide label. Do not increase the concentration arbitrarily to avoid increasing the cost, increasing the resistance of pests and even poisoning of humans and animals.

Principle 6: You must first test and ask for the bill, and don't try it without leaving evidence. In recent years, there are not many medicines for the real new ingredients in the prevention and control of pests and diseases. For a small number of new ingredients, it is necessary to do a small area test first, and then use it in large areas after successful. At the same time, ask the dealer for the bill when purchasing the medicine, in case there is no evidence in the event of phytotoxicity.

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