Dazhou Chuanzao walnut seedling management, Dazhou walnut seedling pest control

Dazhou Chuanzao walnut seedling management, Dazhou walnut seedling pest control, Dazhou walnut seedling management methods Black spot disease of walnuts is also known as black rot, and there are cases in the United States, Italy, Germany, etc. In my country, it is mainly widely distributed in walnut-producing areas such as Hebei, Linfen, Linfen, Dazhou, Henan, Linfen, Zhejiang, Dazhou, Linfen, Linfen, Gansu, etc. The disease is more serious in some areas. According to a market survey in Linfen, the rate of plant damage is generally around ~, the fruit damage rate is around 3~, or even above in severe cases, and the kernel yield reduction can reach ~~. The rot of young fruits and early fruit drop caused by walnut disease, while the oil yield of walnut kernels in damaged fruits that do not fall off is very low, which also has a great impact on the yield of walnuts. In addition to damaging walnuts, black spot disease of walnuts can also infect many plants of the genus Juglans.
Symptoms of walnut seedling disease: It mainly damages walnut young fruits and walnut leaves, and can also damage twigs and flower organs. First, small round and polygonal brown spots need to appear on the veins of the leaves. In severe cases, After mutual healing, there is a water-soaked halo on the periphery of the lesion, and the gray-brown part in the center sometimes falls off, forming a perforation. The lesions on the branches are long, brown, and slightly sunken. In severe cases, the lesions will expand to protect the branches and cause the upper sections to die. When young fruits are damaged, small black spots will appear on the surface of the fruit without obvious edges, which will gradually expand into pieces and turn black, and penetrate deep into the pulp, causing the entire fruit and the kernel to turn black. The kernels may rot or even fall off. After early inflorescences are infected, dark brown water-soaked lesions will appear.
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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.
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Company: Sichuan Weiluda Technology Co., Ltd.
Address: Yonghong Village, Yongming Town, Santai County, Mianyang City, Sichuan Province