1. Scope of application
Grapes, lychees, cucumbers, melons, bitter melons, tomatoes, peppers, potatoes, cruciferous vegetables. Dimethomorph has a good control effect on downy mildew, downy mildew, late blight, blight (mildew), blight rot, pythium, black shank and other low fungal diseases. On vegetables, it can control cucumber downy mildew, melon downy mildew, taro blight, pepper blight, cruciferous vegetable downy mildew, etc.
Dimethomorph formulations include 25%, 30%, 50% wettable powder, 25% microemulsion, 10%, 20%, 40%, 50% suspension concentrate, 40%, 50%, 80% water dispersible granule, 50% effervescent tablet, 10%, 15% water emulsion. Dimethomorph is white powder or crystal. It is hydrolytically stable under normal conditions, and its stability is >5 years under dark conditions.
2. How to use
(1) Control downy mildew of melons such as cucumbers, melons, and bitter gourds.
Apply before the onset or at the beginning of the onset, use 50% water dispersible granules or 50% wettable powder 30-40 grams, 80% water dispersible granules 20-25 grams, 40% water dispersible granules 40-50 grams per mu , 60-80 grams of 25% wettable powder, 150-200 milliliters of 10 percent aqueous emulsion, mixed with 45-75 kilograms of water for spraying. Spray once every 7-10 days, use it alternately with different types of pesticides, focus on the back of the leaves, and apply 3 times in a row.
(2) Prevention and treatment of pepper blight.
Spray before the onset or at the early stage of the onset, use 30-40 grams of 50% wettable powder per mu, and mix with water 50-75 to spray. Depending on the development of the disease, the drug is administered once every 5-7 days, and the drug is used continuously for 3 times.
(3) Control tomato late blight.
In the initial stage of the disease, 40-60 grams of 50% wettable powder is used for mu, mixed with 40-50 kilograms of water for spraying.
(4) Control tomato Phytophthora root rot.
In the initial stage of the disease, pour 2000 times of 50% wettable powder or 1000 times of 50% boscalid water-dispersible granules and add 750 times of 50% dimethomorph water-dispersible granules.
(5) Control potato late blight.
Spray at the initial stage of the disease, spray with 1000 times liquid of 50% wettable powder. Spray once every 7-10 days, and use it alternately with different types of agents.
(6) Control lettuce downy mildew.
Spray at the initial stage of the disease, spray with 50% wettable powder 1000 times liquid. Spray once in 7-10 days, and spray about 2 times in a row, focusing on the back of the leaves.
(7) Control downy mildew of cruciferous vegetables.
Use 20-25 grams of 80% water-dispersible granules or 50% wettable powder, 30-40 grams of 50% water-dispersible granules, 30-40 grams of 40% water-dispersible granules, and 40-60 grams of 25% water-dispersible powder per mu. gram, 100-150 milliliters of 10% water emulsion, mixed with 30-45 kilograms of water and sprayed.
(8) Prevention and treatment of vaccine blight, damping-off and stem base blight of fruits and vegetables.
Start to irrigate (or spray) the seedbed or the base of the plant stem with the liquid when the diseased plants are first seen, once every 10 days or so, and use the medicine twice continuously. Generally use 80% water dispersible granules 2000-3000 times liquid or 50% wettable powder, 50% water dispersible granules 1500-2000 times liquid, 40% water dispersible granules 1000-1500 times liquid, 10% water emulsion 300- 400 times solution
(9) Prevention and treatment of diseases of melons, solanaceous fruits and leafy vegetables.
Generally, 35-50 grams of active ingredients are used per mu, and 30-60 kg of water is sprayed. It is effective to use the medicine before the disease occurs or when the lesions are first seen.
(10) Control scallions and onions downy mildew.
In the early stage of the disease, spray with 600 times liquid of 50% wettable powder. Spray once every 7-10 days, and prevent and treat 2-3 times continuously.
(11) Control strawberry Pythium root rot.
Spray 2000 times liquid of 50% wettable powder during the growth period.
(12) Prevention and treatment of strawberry root rot.
Water 2000 times liquid of 50% dimethomorph wettable powder or 600-800 times liquid of 69% dimethomorph wettable powder.
(13) Control potato late blight.
Spray with 1500 times liquid of 50% wettable powder.
