In winter, eggplant verticillium disease causes the eggplant to develop soon after colonization. When planted at low temperature, the disease is early and more serious, but the disease area is larger and the disease is more serious. Spray pesticides are learned, together with the Chinese pesticide network Xiaobian:
In the early stage of the disease, the eggplant leaves in the lower part of the plant, and the leaf margin and vein between the near petiole become yellow, gradually expanding into a half-leaf or whole leaf. The leaf edge is slightly curled upward, and sometimes the lesion is limited to the half-leaf, causing the leaf to be distorted. The early-stage eggplant strain was wilting. After the rain, the whole plant was wilting, the leaves were bare, and the whole plant died. In severe cases, the whole leaves were yellow and wilted, turning brown until it died. The diseased plant of Dwarf is short and the plant shape is not stretched. The fruit is small, the growth is curved, and the xylem of the eggplant roots is discolored and yellowish brown or tan.
According to the pesticide network , eggplant verticillium wilt is caused by fungal infiltration. The pathogens are dormant hyphae, chlamydospores and micro-sclerotia with the diseased bodies overwintering in the soil, which is the first source of dip in the leap year. The pathogen spreads to the disease-free field through the fertilizer, the contaminated soil and the Solanaceae weeds of the mixed oil residue. The verticillium wilt is generally low in temperature, and the unfertilized organic fertilizer is applied, and the irrigation is improperly formed to form a continuous crop. For the prevention and treatment of eggplant verticillium in winter: use disease-free seeds or disease-resistant varieties, apply fully decomposed organic fertilizers, medication and control methods, apply medicine when planting, and use 1 strain of roots to eliminate 1000 times liquid soaking seedlings when planting eggplant seedlings Roots, after planting and using this solution to fill the roots, 250 ml of each solution, 70% dikesone WP 500 times, 500 ml per plant every 10-15 days, even 2-3 times.
Pesticide manufacturers remind farmers to strictly follow the above ratio when using pesticides, and prohibit excessive use of pesticides to avoid safety accidents.
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