New measures to prevent mustard white rust
2021-03-15 15:23:37
Mustard white rust mainly damages lesions on the leaf blade at the beginning of a pale yellowish-green edge. Obvious lesions are born on both sides of the leaf. The main lesions in the lesions on the back of the leaf expand to white slightly elevated marks. After maturation, the epidermis ruptures and releases many white powders. In severe cases, the lesions cover the entire leaf surface and cause the leaves to turn yellow. Bacteria mainly overwinter on sick bodies and seeds in the soil.
Prevention
1. Select disease-resistant varieties, use new high-fat membrane dressing before sowing, and carry out two-year rotation with non-cruciferous vegetables, timely remove residual crops of former crops, spray disinfectant and add new high-fat membrane to sterilize soil, At the same time, deepen the soil and fertilize the soil to create a soil environment conducive to the growth of mustard.
2, in the growing season of mustard to a reasonable fertilization, and time seedlings, strengthen ventilation and light, scientific irrigation, to avoid the accumulation of water in the field after the rain, and in the bud and spraying strong stem can make plant stem stout, leaf hypertrophy, The leaves are fresh, the plants are lush and the natural taste is strong. At the same time, it can increase the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.
3, chemical control, the initial stage of disease should be sprayed according to the requirements of plant protection 25% metalaxyl WP 1000 times, 75% chlorothalonil WP 600 times liquid spray control, spray once every 7 days, continuous Control spraying 2 ~ 3 times, and should be sprayed according to plant protection requirements of new high-fat membrane 800 times liquid to improve the utilization of effective pharmaceutical ingredients.
Prevention
1. Select disease-resistant varieties, use new high-fat membrane dressing before sowing, and carry out two-year rotation with non-cruciferous vegetables, timely remove residual crops of former crops, spray disinfectant and add new high-fat membrane to sterilize soil, At the same time, deepen the soil and fertilize the soil to create a soil environment conducive to the growth of mustard.
2, in the growing season of mustard to a reasonable fertilization, and time seedlings, strengthen ventilation and light, scientific irrigation, to avoid the accumulation of water in the field after the rain, and in the bud and spraying strong stem can make plant stem stout, leaf hypertrophy, The leaves are fresh, the plants are lush and the natural taste is strong. At the same time, it can increase the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.
3, chemical control, the initial stage of disease should be sprayed according to the requirements of plant protection 25% metalaxyl WP 1000 times, 75% chlorothalonil WP 600 times liquid spray control, spray once every 7 days, continuous Control spraying 2 ~ 3 times, and should be sprayed according to plant protection requirements of new high-fat membrane 800 times liquid to improve the utilization of effective pharmaceutical ingredients.
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