1. Bordeaux mixture is a good protective fungicide prepared from copper sulphate, quicklime and water. It can be divided into equal amount (1:1) and half amount according to the amount of copper sulphate and quicklime (1:0.5). ), a plurality of types (1:3) and multiples (1:2) and the like. 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 prevent and cure various diseases such as black spot, rust, downy mildew and gray spot.
2. Stone sulphur mixture is also a protective bactericide. It is made of quicklime, sulphur powder and water in a ratio of 1:2:10. The original solution is a deep 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.
Third, chlorothalonil has protective and therapeutic effects, a wide range of sterilization, long residual effect, and has a stimulating effect on skin and mucous membranes. Commonly used 75% chlorothalonil WP 600-1000 times liquid spray to control rust, downy mildew, powdery mildew, black spot, carbon disease, disease and other diseases. Can not be mixed with strong alkaline pesticides .
4. Carbendazim is a high-efficiency, low-toxic, broad-spectrum systemic fungicide with protective and therapeutic effects and long residual effect. Generally, 50% wettable powder 1000-1500 times spray is used to control brown spot, sclerotinia, anthracnose, powdery mildew and other diseases. It can also be used for seed dressing and soil disinfection. When seed dressing, the dosage is generally 2- 3/1000.
5. Tobuzin is a high-efficiency, low-toxic, broad-spectrum systemic fungicide with protective and therapeutic effects. It has a long residual period. Its bactericidal range and efficacy are similar to those of carbendazim. It is low in toxicity to humans and animals and safe for 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.
Sixth, Dyson Zinc is a broad-spectrum organic sulfur fungicide, which is light yellow, slightly smelly, easily decomposed in the air or under sunlight. It is commonly used in 65% wettable powder 400-600 times liquid spray to control brown Spot disease, anthrax, sputum, perforation, gray mold, powdery mildew, rust, leaf blight, blight, etc., can not be mixed with alkaline or copper-containing, mercury-containing agents.
7. Detoxification is an organic arsenic, organic phosphorus mixed fungicide, white powder, difficult to dissolve in water, soluble in alkaline solution, easy to decompose in acidic high temperature and humid environment. Generally, 50% of wettable powder 1000-1500 times liquid, or 80% wettable powder 2000-2500 times liquid spray is used to control diseases such as anthracnose, rust, blight, powdery mildew and sclerotinia.
Benzene is a broad-spectrum systemic fungicide with both protective and therapeutic effects, insoluble in water, slightly irritating odor, long potency, and commonly used 50% wettable powder 2000- 5000 times liquid spray to prevent diseases such as gray mold, anthracnose, powdery mildew and sclerotinia.
Nine, the ammonium sterilizing power is strong, both protective and therapeutic effects, after decomposition, there is a certain fertilizer effect, a light yellow liquid, commonly used 1000 times liquid spray to prevent powdery mildew, downy mildew and leaf spot, also available 200 -400 times liquid watering soil to control blight. X. Streptomycin is a white powder, generally sprayed with 100-200 mg per liter concentration, rooted or injected to prevent bacterial diseases, downy mildew and the like.
Outdoor Whirlpool,Whirlpool Bathtub Outdoor,Massage Whirlpool Bathtub,Round Whirlpool
SpaRelax Co., Ltd. , https://www.sparelaxoutdoorspa.com