1. Choose the seedbed: Choose the land with high sorghum, good drainage, and fertile soil without disease (insects); bed soil is best to use disease-free new soil; use old bed, bed soil should be disinfected before sowing, and deep turn In the soil, turn the topsoil at least 20 cm deep, apply a decomposed organic fertilizer without diseased residues, and eliminate or reduce the source of the disease (worm) from the cornice.
2, soil disinfection: (1) seedbed per square meter with 50% carbendazim WP or 50% thiophanate-methyl WP 8-10 grams, fine fluvo-aquic 10-15 kg mix, will 1/3 of the soil is applied to the surface of the irrigated water, and 2/3 of the soil is covered (note that the topsoil is kept moist so as to avoid phytotoxicity). (2) To be planted in greenhouses: Fields that cannot be changed for leeches, root knot nematodes, verticillium wilt, and other soil-transmitted diseases can use high-temperature summer heat to conduct high-temperature soil sterilization (worms), mulching rice straw or wheat straw 1000 Kilograms, 70 kg of ammonium bicarbonate, mixed with soil, poured enough water, covered with film, warmed and fermented, sealed tightly shed for 20 days, the maximum temperature can reach 70 °C, can kill soil-borne pests, neutralize soil saline , while fertilizing fertility.
3. Seed treatment: 1-2 sun fields before sowing, seed soaked with water, then soaked with 10% trisodium phosphate solution (or 0.1% potassium permanganate) for 20-30 minutes and then washed Net, then use 50% carbendazim seed dressing (0.4% of the amount of seeds), can effectively kill the germs (poison) carried by the seeds.
4, timely control of tobacco seedlings, aphids and other pests after emergence: after emergence, found that whitefly, aphids (especially winged aphids), Laodelphax strumae should immediately use 25% imidacloprid 2000-2500 times, or 25% Thiamethoxam water dispersible granules 4000 times or 25% pymetrozine suspension 3000 times spray, autumn delay must be covered with 40-60 mesh purpose insect nets, spray once before colonization to prevent tapeworm transplanting , can control pests, but also to prevent virus infection.
5. Grafting and disease prevention: Cucumber and eggplant are selected from black-skinned squash (or Southern Anvil No. 1) and Tolu-Bam (or wild water-swallowed eggplant) as rootstocks. The cucumbers and eggplants to be planted are scioned and can effectively control the withering of cucumbers. The occurrence of disease and eggplant verticillium wilt.
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