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Carbendazim is a broad-spectrum systemic fungicide widely used in the control of fruit trees, vegetables, flowers and field crop diseases . The dosage form is 25%, 50% wettable powder, 40% suspension agent and the like. The control objects and techniques used are as follows:
First, prevention and treatment of vegetable diseases:
(1) From the initial stage of the disease, use 50% wettable powder 800-1000 times liquid, spray and control once every 7-10 days, even spray 3-5 times, can prevent tomato early blight, melon powdery mildew , beet brown spot.
(2) Before transplanting cucumbers, watermelons and other melons, use 50% wettable powder 1-1.5 kg per acre, add 25-30 kg of fine soil and mix well, evenly spread in the planting ditch or hole, and then the melon period. Rooting with 50% wettable powder 1000 times can prevent melon wilt.
(3) Prevention and control of cotton diseases: use 1 kg of 50% wettable powder, 10-20 kg of water, 100 kg of mixed cotton, sown after 6 hours of boring, or soak for 24 hours with 50% wettable powder 250 times. Drying and sowing can control cotton seedling blight and anthracnose.
(4) Prevention and control of peanut diseases: 50% wettable powder 0.5-1 kg, peanut seed 100 kg, mixed and seeded, can prevent peanut black spot disease, stem rot and so on.
(5) Prevention and control of wheat scab: in the peak of wheat heading, spray with 50% wettable powder 500-1000 times, and spray once every 5-7 days. Spraying 75-100 kg per acre.
(6) Control of rice sheath blight: 50% wettable powder 500-1000 times solution, sprayed once in the end of rice tillering and booting stage.
(7) Prevention and treatment of sweet potato black spot: Before transplanting, the base of the stem of the sweet potato seedling was impregnated with 50% wettable powder 3000-4000 times liquid for 5 minutes.
(8) Control of flower diseases: According to the incidence, use 50% wettable powder 500-1000 times spray, can control powdery mildew of various flowers and rose brown spot, Clivia leaf spot, orchid anthracnose, leaf spot Wait.
Second, control fruit tree diseases:
(1) Spraying from 50% wettable powder 500-1000 times every 10-15 days from grape leaf after fruiting to fruit, it has good control effect on grape black pox, white rot and anthracnose.
(2) Using 50% wettable powder 500-800 times solution, spray control from the early stage of apple onset, and spraying again after 7-10 days, can prevent apple brown spot disease.
(3) Spraying 50 times of 50% wettable powder 500 times in the germination stage and Xiehua of pear trees, and spraying once every 7-10 days, 2-3 times in a row, can prevent pear black spot disease .