A Detailed Guide to the Correct Use of Carbendazim

Carbendazim is a broad-spectrum systemic fungicide that can be absorbed by plant seeds, roots and leaves, and can be translocated within plant tissues. It has both protective and curative effects. So what are the use methods of carbendazim?

1. To control powdery mildew and blight of cucurbits, early blight of tomatoes, anthracnose and blight of beans, and sclerotinia stem rot of rapeseed, use 100-200 g of 50% wettable powder per mu, dilute with water and spray in the early stage of disease onset, for a total of 2 sprays at an interval of 5-7 days.

2. To control gray mold of Welsh onion and Chinese chives, spray with a 300-fold dilution of 50% wettable powder; to control sclerotinia rot of eggplant and cucumber, anthracnose of cucurbits and kidney beans, and powdery mildew of peas, spray with a 500-fold dilution of 50% wettable powder; to control sclerotinia rot of cruciferous vegetables, tomatoes, lettuce and kidney beans, and gray mold of tomatoes, cucumbers and kidney beans, spray with a 600-800-fold dilution of 50% wettable powder; to control white spot disease of cruciferous vegetables, cowpea sooty mold, and early blight (leaf spot) of celery, spray with a 700-800-fold dilution of 50% wettable powder. For all the above sprays, apply the first treatment in the early stage of disease onset, then spray once every 7-10 days, for 2-3 consecutive sprays.

3. To control fusarium wilt of tomatoes, dress seeds at 0.3-0.5% of seed weight; to control fusarium wilt of kidney beans, dress seeds at 0.5% of seed weight, or soak the seeds in a 60-120-fold dilution for 12-24 hours.

4. To control damping-off and seedling blight of vegetables at the seedling stage, mix 1 part of 50% wettable powder evenly into 1000-1500 parts of semi-dry fine soil. When sowing, spread the medicated soil into the sowing furrow and then cover with soil, using 10-15 kg of medicated soil per sq m.

5. To control fusarium wilt of cucumber and tomato, and verticillium wilt of eggplant, drench the roots with a 500-fold dilution of 50% wettable powder, applying 0.3-0.5 kg of the solution per plant; in severely affected plots, drench a second time after an interval of 10 days.

Precautions for using carbendazim:

1. Stop use 5 days before harvesting vegetables. This product must not be mixed with strongly alkaline agents or copper-containing agents, and should be used in rotation with other agents.

2. Do not use carbendazim alone over the long term, and do not rotate it with similar agents such as thiophanate, benomyl, or thiophanate-methyl. In areas where resistance to carbendazim has developed, do not continue using it by increasing the dosage per unit area; it should be resolutely discontinued.

3. It forms mixed formulations with sulfur, mixed amino acid copper·zinc·manganese·magnesium, mancozeb, amobam, thiram, ziram, quintozene, prothiocarb-carbendazim, dimethachlon, bromothalonil, diethofencarb, validamycin, etc.; it can be mixed with fenaminosulf, mancozeb, chlorothalonil, wuyiencin, etc.

4. It should be stored in a cool, dry place.