四川川早核桃苗基地

Wanyuan Chuanzao walnut seedling pathogen, Wanyuan walnut seedling pest control, Wanyuan walnut seedling management technology The walnut seedling pathogen belongs to Xanthomonas bacterium, the hyphae are short rod-shaped, with a flagellum at the end, and the colonies will be transparent on the medium It appears white at first and gradually turns to grass yellow. The colonies grow vigorously on the beef extract culture medium and will be prominent, shiny, smooth, opaque, light lemon yellow and sticky. The bacteria liquefy gelatin very slowly, without producing either acid or gas in glucose, sucrose and lactose.
The pattern of walnut disease: Pathogenic bacteria overwinter in the lesions on the diseased branches or in the diseased buds. In the spring of the second year, the bacteria will spread to the leaves, fruits and twigs through the splash of wind and rain, causing damage. Walnut pathogens can infect the inflorescences (organs), so walnut pathogens can also be transmitted in pollen. Insects are also important vectors for transmitting diseases. Walnut pathogens invade through stomata, lenticels, nectaries and various wounds.
Control of walnut diseases:
． Remove diseased leaves and fruits, and pay attention to the hygiene of the woodland. After the walnuts are harvested, the peeled peels should be disposed of, combined with pruning the walnut branches and leaves, cutting off the diseased branches and fruits, and cleaning up the fallen fruits on the ground. , concentrated burning can reduce the source of germs.
． Strengthen management, enhance walnut tree vigor, improve tree disease resistance, and pay attention to using sticks as little as possible when harvesting to reduce tree wounds. Nowadays, in areas with serious insect pests, especially in walnut limb-raising moths, In very serious areas, pest control should be carried out in a timely manner to reduce wounds and vectors that carry pathogens, in order to achieve the purpose of disease prevention.
3. In walnut orchards where the black spot disease of walnuts occurs more seriously, pesticides can be sprayed with: Bordeaux mixture each time after the leaves are unfolding (before the female walnut flowers appear), after the walnut flowers fall, and in the early stages of the young walnut fruits. In addition, agricultural streptomycin, mancozeb or etc. can also be sprayed to achieve better pest control effects.
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Our company also sells various other seedling varieties: grafted walnut seedlings, plum seedlings, kiwi seedlings, cherry seedlings, loquat seedlings, grape seedlings, and peaches Seedlings, cypress seedlings, mulberry seedlings, alder seedlings, acacia seedlings, toon seedlings, ginkgo seedlings, etc.
Machinery products: walnut fruit and agricultural and sideline product dryers, walnut peeling and cleaning machines, tree planting and digging machines, road sweepers, etc.
Sales Hotline: (Manager Zhang is looking forward to your call)
Technical Hotline: (Manager Liu is looking forward to your call)
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Company: Sichuan Weiluda Technology Co., Ltd.
Address: Yonghong Village, Yongming Town, Santai County, Mianyang City, Sichuan Province