Tobuzin is a highly effective, low-toxic, broad-spectrum systemic fungicide with protective and therapeutic effects. It has a long residual period, similar bactericidal range and efficacy with carbendazim, low toxicity to humans and animals, and safety to plants. Commonly used 50% wettable powder 500-1000 times liquid spray to prevent powdery mildew, anthracnose, coal fouling disease, chalk disease, sclerotinia, leaf spot, gray mold, black spot and other diseases, commonly used Methyl thiophanate.
Triadimefon has the effects of prevention, eradication and fumigation on rust and powdery mildew. Apple rust, white poplar rust, chrysanthemum rust, psyllium rust, rose rust, rose powdery mildew, jellyfish powdery mildew, cineraria powdery mildew, ivy powdery mildew can be prevented. If sprayed with 25% triazolone wettable powder, the usual concentration is 3000-4000 times; if sprayed with 20% triazolone EC, the usual concentration is 2000 times. In addition, triadimefon has certain control effects on flower leaf blight, brown spot, and leaf spot.
Chlorothalonil has a preventive effect on a variety of plant diseases. Chlorothalonil has good adhesion on the surface of plants and is not easily washed away by rain. Therefore, it has a long period of efficacy, usually 10 days. However, it has no systemic conduction and will not be absorbed from the spray site and root system, so the spray should be even and thoughtful. It is usually sprayed with 75% chlorothalonil WP 600-1000 solution, which can effectively prevent black spot disease, poplar black spot, chrysanthemum brown spot, peony brown spot, rubber tree anthracnose, Clivia Anthracnose, cherry blossom brown spot perforation, etc. Chlorothalonil has certain irritation to human skin and eyes, and should be protected when used.
Fungus bacteriostatic can not only prevent and kill bacteria, but also has a strong ability to kill viruses. In addition, since the raw material for production is urea or potassium salt, it also has a function of promoting plant growth. 50% carbendazim WP 1000-2000 spray can effectively prevent black spot disease, rose powdery mildew, rose stalk, rosedust, rose root cancer, tulip, lily Leaf blight, chrysanthemum mosaic disease, a bunch of safflower leaf disease, turf brown spot disease, lawn stem rot and various root rot, stem rot and so on.
Bordeaux mixture is a good protective fungicide. It is prepared from copper sulphate, quicklime and water. It can be divided into equal-size (1:1) and half-quantity (1:0.5) according to the amount of copper sulphate and quicklime. A plurality of types (1:3) and multiples (1:2). When preparing, first use half of the hydrated copper sulfate and quicklime, then pour the copper sulfate into the quicklime solution and stir evenly with a stick. The formulated Bordeaux mixture is a sky-blue colloidal suspension, which is alkaline and has strong adhesion. It can form a film on the surface of the plant, and the effective period can be maintained for about half a month. Bordeaux liquid is not resistant to storage and must be used now. It cannot be mixed with base pesticides . It can control various diseases such as black spot, rust, downy mildew and gray spot.
Stone sulphur is also a protective bactericide. It is made of quicklime, sulphur powder and water in a ratio of 1:2:10. The stock solution is a dark reddish brown transparent liquid with a smelly egg and alkaline. When preparing, first boil the water in the pot, pour 1 part of quick lime, wait for the lime to dissolve, then add 2 parts of sulfur powder with a small amount of water to make a paste, stir while adding, and add to the fire with a big fire. After about 1 hour, when the liquid is reddish brown, the fire is stopped. After cooling, the sediment is filtered off, which is the raw material of the stone sulfur mixture, and the wave filling degree is generally 20-24. The stock solution must be diluted before use. The dormant period can be sprayed with 3-5 degrees of Baume, and the dilution can only be used with a dilution of 0.3-0.5 Baume. It can prevent and cure powdery mildew, rust, downy mildew, perforation, leaf spot and other diseases, and can also control pests such as whitefly, leafhopper and scale insect.
Dyson Zinc is a broad-spectrum organic sulfur fungicide with a light yellow color and a slight odor. It is easily decomposed in the air or in sunlight. It is commonly used in the treatment of brown spot disease with 65% wettable powder 400-600 times liquid spray. , anthrax, sputum, perforation, gray mold, powdery mildew, rust, leaf blight, blight, etc., can not be mixed with alkaline or copper or mercury-containing agents.
Dysonium has strong bactericidal power and has both protective and therapeutic effects. After decomposition, it has certain fertilizer effect, and it is light yellow liquid. It is commonly used 1000 times liquid spray to prevent powdery mildew, downy mildew and leaf spot, and can also be used 200-400. Double liquid watering the soil to control the blight.
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