Dimethomorph is mainly used to control grape downy mildew and potato late blight, usually mixed with mancozeb

Dimethomorph is a morpholine broad-spectrum fungicide. It has a unique mode of action on fungi of the algae Peronospora and Phytophthora. It mainly causes the decomposition of the sporangia wall and causes the death of the bacteria. In addition to zoospore formation and spore migration, it has an effect on all stages of the life history of oomycetes, especially in the formation stage of sporangia stems and oospores. It is more sensitive at very low concentrations (<0.25 mg/L ) Is suppressed. If the medicine is administered before the spore formation, the spore production can be completely inhibited. The drug is extremely systemic. It can be applied to the roots and can enter various parts of the plant through the roots. When sprayed on the leaves, dimethomorph can also enter the inside of the leaves to prevent and control the pathogens that have invaded the crop in time. It has an ideal protective effect; it contains two active ingredients, which can form a strong and effective protective film on the surface of the crop at the same time after application, thereby showing excellent effects of internal treatment and external protection. The drug is registered and promoted in my country by the American Cyanamide Company, with the trade names “Anke” and “Ankermancozeb” (9% dimethomorph, 60% mancozeb). It is particularly effective against downy mildew, phytophthora, and Pythium fungi. It can be used for crops such as grapes, peppers, cucumbers, tobacco, potatoes, cruciferous vegetables and tomatoes. It has no cross-resistance with benzene amide fungicides such as Ruidu mould and oxazolidinone. It can be mixed with copper preparations, dithianon, benzamide or chlorothalonil.

Control objects and methods of use:

1. To prevent and control cucumber, bitter gourd downy mildew, and cruciferous vegetable downy mildew, spray before or at the beginning of the onset, use 69% Anke manganese 1500-1995 grams per hectare (effective ingredients 69-92 grams), the spraying amount is 900-1200 liters. Spray once every 7-10 days and spray 3-4 times continuously.

2. To prevent and cure pepper blight, grape downy mildew, tobacco black shank, potato late blight, spray before or at the beginning of the onset, use 69% Anke Manganese 1995-2505 grams per hectare (effective ingredients 92-115 grams), spray The volume is 900-1200 liters, and the grapes are 2250-3000 liters per male. Spray once every 7-10 days and spray 3-4 times continuously.

Precautions:

1. When cucumbers, peppers, cruciferous vegetables, etc. are young, use a low amount of spray and medicine. Spray the medicine to evenly cover the leaves.

2. Wear protective clothing when applying the medicine to avoid direct contact with the body parts.

3. If the medicine contaminates the skin, rinse with soap and water. If swallowed by mistake, do not induce vomiting and send to hospital for treatment as soon as possible. The medicine has no antidote and is symptomatic treatment.

4. The medicine should be stored in a cool, dry and away from feed and children.

5. Do not use dimethomorph (ancomanganese) more than 4 times per season. Pay attention to the use of other fungicides with different mechanisms of action and their rotation applications.