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July-August is the hot and dry season in Hangzhou. The high temperature, heavy rain and typhoon in the summer are not conducive to the growth of vegetables, but it is beneficial to a variety of pests and diseases. In particular, pests such as the night moth occur, which poses a threat to the safe production of vegetables. Therefore, all localities should attach great importance to safety prevention and control work.
First, the main pests and diseases on vegetables in July-August are:
(1) Leafy vegetables are mainly Spodoptera litura, beet armyworm, locust leafhopper, and cabbage caterpillar, and the disease includes soft rot and black rot.
(2) Solanaceae vegetables are mainly red spiders and thrips.
(3) Melon vegetables are mainly thrips, leaf miners, red spiders, and melons.
(4) Beans and vegetables are mainly bean hopper, noctuid, red spider and leaf miner.
Second, the chemical control technology 1. Nocturnal moths: low-age larvae application, the drug has 1 billion PIB Au Green No. 1 suspension agent 800 times, 15% DuPont hit 3500 times, 20% rice 1000 times, 10% divided by 1000 ―1500 times, 20% of Boss 1000 times, 10% kills 1000-1500 times. The application time is better in the evening.
2. Red spider: chemical control should be in the stage of spotting, with 15% broom (except eggplant) emulsifiable concentrate 3000 times evenly spray the front and back of the blade; 73% gram emulsifiable concentrate 1000-1500 times; 0.6% haizheng Insect spirit 1500 times, can also treat both thrips, aphids and leaf miners.
3. Hummer: 10% Shikejing wettable powder 2000-3000 times (beans, melons used with caution) or 20% good winter emulsifiable concentrate 1500-2000 times spray.
4. Bean wild carp: The principle of prevention and control is to cure the flower and cure the pod, and combine the flower of the plant with the flower of the ground. It should be applied in the early morning. The medicinal agent has 5% ginseng suspension 1500 times or 18.1% rich emulsifiable concentrate 2000-3000 times. .
5. Melon: Clean the melon and remove the leaf in time. The agent is sprayed with 5% Regent suspension.
6. Loose leaf flies: Spraying and controlling when there are fine insects on the foliage of the field. Use 20% green Defoam microemulsion 1000-2000 times or 50% potential WP WP 3500 times.
7. Soft rot, black rot: At the beginning of the disease, 72% agricultural streptomycin soluble powder 3500 times or 90% neomycinmycin 3500 times, 12% green milk copper emulsifiable concentrate 600 times spray.
First, the main pests and diseases on vegetables in July-August are:
(1) Leafy vegetables are mainly Spodoptera litura, beet armyworm, locust leafhopper, and cabbage caterpillar, and the disease includes soft rot and black rot.
(2) Solanaceae vegetables are mainly red spiders and thrips.
(3) Melon vegetables are mainly thrips, leaf miners, red spiders, and melons.
(4) Beans and vegetables are mainly bean hopper, noctuid, red spider and leaf miner.
Second, the chemical control technology 1. Nocturnal moths: low-age larvae application, the drug has 1 billion PIB Au Green No. 1 suspension agent 800 times, 15% DuPont hit 3500 times, 20% rice 1000 times, 10% divided by 1000 ―1500 times, 20% of Boss 1000 times, 10% kills 1000-1500 times. The application time is better in the evening.
2. Red spider: chemical control should be in the stage of spotting, with 15% broom (except eggplant) emulsifiable concentrate 3000 times evenly spray the front and back of the blade; 73% gram emulsifiable concentrate 1000-1500 times; 0.6% haizheng Insect spirit 1500 times, can also treat both thrips, aphids and leaf miners.
3. Hummer: 10% Shikejing wettable powder 2000-3000 times (beans, melons used with caution) or 20% good winter emulsifiable concentrate 1500-2000 times spray.
4. Bean wild carp: The principle of prevention and control is to cure the flower and cure the pod, and combine the flower of the plant with the flower of the ground. It should be applied in the early morning. The medicinal agent has 5% ginseng suspension 1500 times or 18.1% rich emulsifiable concentrate 2000-3000 times. .
5. Melon: Clean the melon and remove the leaf in time. The agent is sprayed with 5% Regent suspension.
6. Loose leaf flies: Spraying and controlling when there are fine insects on the foliage of the field. Use 20% green Defoam microemulsion 1000-2000 times or 50% potential WP WP 3500 times.
7. Soft rot, black rot: At the beginning of the disease, 72% agricultural streptomycin soluble powder 3500 times or 90% neomycinmycin 3500 times, 12% green milk copper emulsifiable concentrate 600 times spray.
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