Chlorothalonil has been widely used as a fungicide, mainly used for the prevention and control of rust, anthracnose, powdery mildew and downy mildew on fruit trees and vegetables to prevent plants from being attacked by fungi. Chlorothalonil has also been used for sterilization of the Gower Stadium, lawns, and ornamental plants abroad, as well as for the preservation of certain trees and paintings.
Chlorothalonil Application Technology:
1. Control of rice blast
When controlling leaf blasts, see the disease center in the field to start spraying, and spray again every 7 days. To control panicle blast, spray the pesticide once during the rice breakage period and the full spike period. Each time with 75% chlorothalonil wettable powder per hectare, the commercial volume is 1500 to 1900 grams (active ingredient 1125 to 1425 grams), add 1050 liters of water, and spray evenly.
2. Control of rice sheath blight
Spray at the beginning of the disease or from the earing stage to the booting stage, and then spray again every 7 days. 1 Use 75% chlorothalonil wettable powder per hectare for 1500~1900 grams (active ingredient 1125~1425 grams) , Add 1050 liters of water, spray evenly, and focus on spraying the stems of rice.
3. Control of wheat leaf rust and leaf spot
Start spraying at the beginning of the disease, spray once every 7 days, and spray 2 to 3 times in succession, each time using 75% chlorothalonil wettable powder per hectare, commercial volume 1500 to 1900 grams (effective ingredient 1125 to 1425 grams ), add 1050 liters of water, stir and spray evenly.
4. Prevention of flower rust, brown spot and black spot
Start spraying at the beginning of the disease, spraying once every 7 to 10 days, spraying continuously 2 to 3 times. Depending on the growth period of the peanut and the development of the disease, the decision on whether to apply the pesticide is then made. Use 75% chlorothalonil wettable powder per hectare for 1500~1800g (active ingredient 1125~1350g), or use 40% Dakronin suspending agent for 1500~2250g (active ingredient 600~900g) ), add 900 liters of water and stir to spray evenly.
5. Prevention and treatment of cucumber downy mildew
Start spraying before or at the beginning of the disease, spraying every 7 days. Continuous spraying for 3 to 4 times, each time using 75% chlorothalonil wettable powder commercial volume of 2200 to 4000 grams (active ingredient 1650 to 3000 grams) per hectare, or using 40% Dakronin suspension or 40% chlorothalonil The commercial volume of the suspending agent is 2250~2625g (the active ingredient is 900~1050g), add 1125 liters of water, mix evenly and spray, and reduce the amount of spraying liquid for cucumber seedlings per hour. Greenhouse cucumber downy mildew can be controlled with chlorothalonil, which can be controlled by igniting and fumigation at the initial stage of the disease. The commercial volume of 10% chlorothalonil for each hectare is 7500-12000 grams, or 20% chlorothalonil. The commercial volume of the smoke-removing agent is 3750~6000 grams, or the commercial volume of the 30% chlorothalonil cleaning agent is 2500-4000 grams, or the commercial volume of 45% chlorothalonil cleaning agent is 1667-2667 grams (the active ingredient is 750-1200 grams). It is also possible to use 5% chlorothalonil powder commercial volume of 15000~22500 g (active ingredient 750~1125 g) for powder spraying for prevention and control, and to further prevent and treat depending on the development of the disease.
6. Prevention and treatment of tomato early blight
Start spraying at the beginning of the disease, spray every 7 to 10 days, spray 3 to 4 times in succession, each time using 75% chlorothalonil or Dacron wettable powder commercial volume of 2200 to 4000 grams per hectare (Effective ingredient 1650~3000g), or 40% chlorothalonil suspending agent commercial volume 2250~2625g (active ingredient 900~1050g), add water 1125, stir evenly spray, the amount of liquid sprayed in seedling hours is reduced.
7. Prevention and treatment of cabbage black spot and downy mildew
In the early stage of the disease, the climatic conditions are favorable to start spraying when the disease occurs, spraying once every 7 to 10 days, spraying continuously 2 to 3 times, each time using 75% chlorothalonil wettable powder per hectare 1700~2300 grams (1275~1725 grams of active ingredient), add 900 liters of water, spray evenly.
Post time: Jul-15-2020