Seven methods of pollution prevention and control of vegetable aphids
Aphids are pests with the largest amount of vegetables and the longest period of damage. As the application rate of pesticides increases year by year, the resistance of aphids increases year by year. Therefore, the use of pollution-free treatment can improve the control effect and reduce the production cost. Second, it can reduce pesticide residues and achieve pollution-free purposes.
There are seven main methods for common pollution-free prevention:
1, yellow plate lure. The winged scorpion has a strong tendency to yellow and orange, and can be trapped by a yellow plate coated with No. 10 motor oil. The size of the yellow plate is generally 15-20 cm square, inserted or hung in the vegetable row and the vegetable is flat. The yellow plate should be replaced in time after it is full.
2, silver ash film to avoid cockroaches. Silver gray has a strong repellent effect on aphids, and can be used to hang silver plastic strips in the field or cover vegetables with silver mulch. To control the autumn cabbage aphids, you can take a 0.5-meter arch shed immediately after the cabbage is planted, and pull a silver-gray plastic film every 0.3 meters to cover about 18 days. When the seedlings are 6-7 pieces of true leaves, they are planted in the shed. The effect of avoiding sputum is more than 80%, and the medication can be reduced 1-2 times.
3, washing powder kills. The main component of washing powder is sodium dodecyl benzene sulfonate, which has a strong contact effect on aphids. Therefore, 400-500 times of washing powder can be used to kill cockroaches, 60-80 kilograms of liquid per acre, and even spray 2-3 times, which can receive better control effect.
4, plant mites. 1 Tobacco is ground into fine powder, and a small amount of lime powder is applied; 2 pepper is soaked in water for a day and night, filtered and sprayed; 3 peach leaves are immersed in water for a day and night, and a small amount of quicklime is filtered and sprayed.
5, plant drive. The volatile smell of amaranth has a repellent effect on aphids. If it is mixed with other vegetables, it can reduce the density of aphids and reduce the damage of aphids to vegetables.
6. Eliminate the source of insects. The residual diseased leaves of the hay and vegetables near the vegetable fields are the main wintering hosts of the locusts. Therefore, the fields should be thoroughly cleaned before winter, winter and spring, and the weeds near the vegetable fields should be removed.
7, protect the enemy. The natural enemies of locusts include the seven-spotted ladybug, the heterosexual ladybug, the grasshopper, the scorpion fly, the cockroach and the cockroach, and they should take care of the cockroaches to keep the population of the locusts in an insufficient amount.
There are seven main methods for common pollution-free prevention:
1, yellow plate lure. The winged scorpion has a strong tendency to yellow and orange, and can be trapped by a yellow plate coated with No. 10 motor oil. The size of the yellow plate is generally 15-20 cm square, inserted or hung in the vegetable row and the vegetable is flat. The yellow plate should be replaced in time after it is full.
2, silver ash film to avoid cockroaches. Silver gray has a strong repellent effect on aphids, and can be used to hang silver plastic strips in the field or cover vegetables with silver mulch. To control the autumn cabbage aphids, you can take a 0.5-meter arch shed immediately after the cabbage is planted, and pull a silver-gray plastic film every 0.3 meters to cover about 18 days. When the seedlings are 6-7 pieces of true leaves, they are planted in the shed. The effect of avoiding sputum is more than 80%, and the medication can be reduced 1-2 times.
3, washing powder kills. The main component of washing powder is sodium dodecyl benzene sulfonate, which has a strong contact effect on aphids. Therefore, 400-500 times of washing powder can be used to kill cockroaches, 60-80 kilograms of liquid per acre, and even spray 2-3 times, which can receive better control effect.
4, plant mites. 1 Tobacco is ground into fine powder, and a small amount of lime powder is applied; 2 pepper is soaked in water for a day and night, filtered and sprayed; 3 peach leaves are immersed in water for a day and night, and a small amount of quicklime is filtered and sprayed.
5, plant drive. The volatile smell of amaranth has a repellent effect on aphids. If it is mixed with other vegetables, it can reduce the density of aphids and reduce the damage of aphids to vegetables.
6. Eliminate the source of insects. The residual diseased leaves of the hay and vegetables near the vegetable fields are the main wintering hosts of the locusts. Therefore, the fields should be thoroughly cleaned before winter, winter and spring, and the weeds near the vegetable fields should be removed.
7, protect the enemy. The natural enemies of locusts include the seven-spotted ladybug, the heterosexual ladybug, the grasshopper, the scorpion fly, the cockroach and the cockroach, and they should take care of the cockroaches to keep the population of the locusts in an insufficient amount.
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