In the process of planting crops, many growers use a large amount of mixture, such as fungicides and fungicides or other types of pesticides, which can delay the resistance, increase the efficacy, and reduce the cost of medication. Therefore, the next small series will briefly talk about the mixed technology of fungicides and insecticides, conditioners, foliar fertilizers, etc., I hope to help everyone.
First, several situations in which mixed or mixed use is required
1. Combination of fungicides and fungicides and insecticides
For example, the agent for controlling whitefly or mites (imidacloprid) and the agent for controlling downy mildew (fine metalaxyl · mancozeb) or the agent for controlling gray mold (isourea, nicotinamide, bacillus nitrile) Mixed.
2. Combination of fungicide and biological growth regulator
For example, farmers generally mix auxin 2,4-D with a fungicide for controlling gray mold (prochlorazenitrile, pyrimethanil, etc.) and then apply tomato flower buds (or scented flowers).
3. Combination of fungicide and foliar fertilizer
4, the combination of fungicide and tank mixing additives
Second, the difference between mixed preparations and mixed use
1. The mixed preparation is different from the mixed use.
2. Mixed use is a mixture of pesticides used by pesticide users as needed.
3. The mixture is a pre-processed commercial preparation, and the farmers cannot change the composition of the active ingredients when they use it.
Third, the precautions for mixing fungicides
1. Whether there is antagonism after mixing the agents.
2. After formulating a bactericide, add another bactericide or other pesticide or fertilizer. If flocculation or discoloration, delamination, bubble, etc. occur, the bactericide cannot be used with these pesticides. Or the fertilizer is mixed.
Fourth, several situations in which drugs cannot be mixed
1. Cream, Manganese Zinc and Fine Metalaxe · Mancozeb;
2, metalaxyl · mancozeb and Jinlei, azoxystrobin and ether ester;
3, pyraclostrobin and pyraclostrobin ester + Daisen;
4, fluopyram · creamer and creamer;
5. Difenoconazole and myclobutanil;
6. Dimethomorph, mancozeb, and enoylmorpholine;
7. Isobacteria and vinyl bacteria nuclear;
8, carbendazim and thiophanate;
9. Mixture containing mancozeb can no longer be mixed with mancozeb;
10. Copper preparations generally cannot be mixed with alkaline pesticides.
Five, recommend several kinds of barrel mix
1. Cucumber downy mildew, powdery mildew and gray mold are seriously harmful
68.75% fluopyram · propofol suspension + 10% difenoconazole water dispersible granule + 50% fludioxonil wettable powder or 50% nicotinamide water dispersible granule.
2, tomato late blight, gray mold, leaf mold, early blight is seriously harmful
68% refined nail cream · mancozeb water dispersible granules + 32.5% azoxystrobin / difenoconazole suspension or Shigao + Huiyou or nicotinamide.
3, tomato gray mold, cucumber gray mold, strawberry gray mold, pepper gray mold is seriously harmful
50% nicotinamide water-dispersible granules + 25% pyraclostrobin emulsion.
4, prevention and control of powdery mildew, gray mold, downy mildew, late blight
56% azoxystrobin and chlorothalonil suspension, 32.5% azoxystrobin and difenotropium suspension, azoxystrobin + difenoconazole + chlorothalonil, difenoconazole + chlorothalonil.
5, prevention and treatment of melon crop anthracnose
Carbendazim + sulfur.
6, anti-virus and increase crop disease resistance
Antiviral agent + foliar nutrients.
6. Determine the concentration of application in the tank mixture
According to the reasonable dilution concentration of pests and diseases, such as downy mildew and gray mold control, 68.75% fluopyram and downy mildew suspension concentration is 600 times liquid + 25% nicotinamide water dispersible granules 1500 times liquid is now mixed Use to prevent diseases.
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