In the cold dew season, the weather gradually transitions from cool to cold. At this time, it presents a scene of high autumn and cool air. For greenhouse vegetables, it is also very conducive to its growth, and it is also a favorable period for winter and spring greenhouse vegetable cultivation and seedling cultivation. However, in the cold dew season, greenhouse vegetables are also prone to breed various pests and diseases, which have a serious impact on crops. So how to take care of the vegetables in the cold season? Let's learn together.
Greenhouse Vegetable Management in Cold Dew Season
1. Strengthen field management
When planting leafy vegetables, melons and solan melons, field management should be strengthened, irrigation, drought prevention, topdressing fertilizers, promoting growth, spraying pollution-free pesticides to prevent diseases and insect pests, timely harvesting, and supplying the market.
2. Cultivate soil power
Utilize fine weather, turn over greenhouse vegetables, expose to the sun, weather the soil, apply organic fertilizer, spray soil disinfectants, sterilize and exterminate insects, and improve fertility. In the new vegetable park, steel pipe greenhouses and bamboo sheds can be added to gradually expand the planting area of ​​vegetable protected areas.
3. Greenhouse renewal and maintenance
If the bamboo shed that has been used in the old vegetable area for several years is seriously damaged, it must be renewed. In order to improve the winter and spring vegetable shed antifreeze insulation function.
Key points of greenhouse vegetable management in cold dew season
4. Winter and spring greenhouse vegetable seedlings and management
In the winter and spring greenhouse vegetable seedling cultivation period, seed purchase, seed treatment, disinfection, and seed soaking should be done well.
5. Pest control
(1) Disease and pest control of leafy vegetables. There are mainly pests such as beetles, diamondback moth, aphids, and Spodoptera litura. Chinese cabbage dry heart disease, soft rot disease, virus disease, rhizome disease, downy mildew and other diseases occur. It can be used to control Spodoptera litura and diamondback moth, such as Elixir or Farmland or Jingbaoer (Awei salt), DuPont hit or Hisun Sanling, etc., and use Leben to control jumping beetle. Cabbage soft rot is controlled with agricultural streptomycin or killable or muscovite plus decontamination.
(2) Control of legume diseases and insect pests in autumn. Legumes mainly include leaf miner fly ash, Puccinia striiformis, coal mold, rust, fusarium and other pests and diseases, and prevention and control should be done well. Cowpea can be treated with 52.25% agricultural land music 1200 times solution or 4,000 times solution plus insecticide 1500 times solution to control pod pods, spray 50% latent gram 5000 times solution or avermectin to control leafflies, and control whitefly Use 20% Lanning (Acetamiprid) 2000 times or 20% Dafengshu No. 6 2000 times solution plus Luying 200 times solution.
(3) Prevention and treatment of root-knot nematode and verticillium wilt. Eggplants, tomatoes, cucumbers, celery, etc. planted and raised may be harmed by root-knot nematode disease. Before transplanting, 5% of good winter G or Blessing G (2-3 g per hole) can be used for prevention and treatment.
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