The main diseases and pests of eggplant in sunlight greenhouse
1, the main disease
The main diseases of eggplant in solar greenhouses are damping-off, blight, verticillium wilt, cotton blight, brown leaf, gray mold, powdery mildew, brown spot, sclerotia, bacterial leaf spot and root knot nematodes Diseases such as the occurrence of these diseases often affect the growth and development of eggplant, resulting in premature plant failure, reduced yield, poor quality.
(1) Tripe at seedling stage, blight: mix the seedlings with medicinal soil and control with thiophanate-methyl or chlorothalonil after emergence.
(2) Verticillium wilt of eggplant: grafting disease prevention is the best method, and can also be used for irrigation roots such as Dupont Wanxing and carbendazim.
(3) Bacterial disease, brown veins, gray mold, and powdery mildew in eggplants: control of brown leaf disease, gray mold, white powder with anti-virus acarid, Amisida anti-bacteriosis, Dupont Fuxing, Dubangkelu, and Dupont antibacterial net disease.
2, the main insect pests
The common insect pests in the cultivation of eggplant include aphids, whiteflies, leafminers, tea aphids, red spiders, cockroaches, cockroaches, and small tigers. Sunlight greenhouse cultivation mainly includes: aphids, whitefly, spotted fly, and red spider.
(1) Locust: before the colonization, smoke was smoked with Xiaozhiling smoke agent, trapped on the yellow plate or controlled with imidacloprid or dimethoate.
(2) Whitefly, also known as the small white moth, is bred with a yellow plate or 25% Aketai agent and 25% buprofezin. Artificial release of grasshopper or citron wasp had good control effect.
(3) Starscream: Completely remove stubborn leaves in the shed and reduce insect infestation; Strengthen fertilizer and water management, prevent and spray on the leaves, spray once every 5-7 days, spray 2-3 times. Shennong Great Smoke Agent 4 can be used as a smoked shed.
(4) Astragalus membranaceus: It mainly damages the fruit and cracks fruit. The crack depth can reach more than 1 cm. The upper leaves of the killed plants were stiff and the backs of the plants were gray-brown or brown-brown. The leaves were shiny, and the leaf margins were bent downwards. Comprehensive control was used for prevention and control. Observe the defoliation of fallen leaves and implement a rotation of more than 2 years. Before the colonization, fill 3-4 in the seedbed with 25% of 15% pyridazinone. After planting, check the buds and then check the results again.
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Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com