Filter Mesh
Filter mesh including metal filter mesh,ventilation filter mesh, air conditoner filter mesh, shale shaker screen,mine sieving mesh, dutch weave filter mesh, reverse dutch weave wire cloth, metal fiber sintered felt.
The filter mesh be made from different mesh of metal mesh, the application is filter impurities and improve mixing and plasticizing effect.
The advantages of filter mesh is anti-acid, anti-alkali, temperature, wear-resistant, corrosion, etc. It be maindly used in mining, oil, chemical, food, medicine, machinery manufacturing and other industries.
Filter Mesh,Filter Cartridge,Filter Tube,Stainless Steel Filter Mesh,Crimped Wire Mesh ANPING COUNTY SHANGCHEN WIREMESH PRODUCTS CO.,LTD , https://www.scwpwiremesh.com
Common diseases and prevention and cure of Chinese medicinal materials
Root rot first decayed from the fibrous roots and roots and rotted, gradually spread to the main root, and finally caused the whole root to decay until the stems and leaves on the ground withered from the bottom up and the whole plant died. The disease is often associated with the infestation of underground nematodes and root lice, and the disease is severe when soil viscosity is heavy and there is too much water in the field. Radix Astragali, Radix Salviae Miltiorrhizae, Radix Isatidis, Radix Astragali, Radix Paeoniae Alba, Radix Paeoniae Alba, and Codonopsis Pilosula are susceptible to the disease. The prevention and control methods are: using insecticides to control underground pests before sowing, and increasing organic fertilizers to increase resistance to disease. In the early stage of the disease, 800-1000 times of thiophanate-methyl, carbendazim, etc. can be used to irrigate the roots, and the water can be discharged immediately after the rain. Root knot nematode disease caused by nematode parasitism caused by root knot nematode, in the roots of medicinal herbs a lot of nodules, resulting in slow growth of plants, leaves yellow, and finally the whole plant died, the disease-damaging medicinal herbs Salvia, Campanulaceae, Radix, ginseng and North sand ginseng and so on. It is advisable to use crop rotation or paddy crop rotation with grass crops before treatment, and treat the soil with methyl isophosphorus prior to sowing. White plague often occurs near the roots of the ground or at the base of the stem, and a layer of white silky filaments appears. When it is severe, it rots into a mess, eventually causing the leaves to wilt and the whole plant to die. Often in the high humidity season or soil waterlogging conditions. The medicines that are harmed by this disease include Astragalus membranaceus, Platycodon grandiflorum, Atractylodes macrocephala, heterophylla, and northern sea cucumber. In the prevention and treatment, it should be rotated with grass crops or crop rotation, and the soil before sowing should be disinfected with lime or with carbendazim and thiophanate-methyl. Blight originally developed brown spots on the base of the seedling stems, which in turn expanded into lesions around the stems. The lesions were dehydrated and contracted, causing the seedlings to die. The medicines that are harmed by this disease include Huangqi, Eucommia ulmoides, ginseng, Panax pseudoginseng, Atractylodes macrocephala, Beisha ginseng, windproof and chrysanthemum. Treatment methods include: reducing soil moisture, removing diseased plants in time, and treating the soil with carbendazim, pentachloronitrobenzene, etc., and spraying to prevent infection of other healthy strains. In the early stages of wilt disease, the lower leaves bleed, then turn yellow and die. Poorly populated and poorly drained clay lands are seriously ill. Herbs such as Astragalus, Campanulaceae, and Nepeta often infect the disease. In the prevention and treatment, it should be rotated with grass crops. The early stage of the disease should be treated with carbendazim and thiophanate-methyl. When the sclerotial disease occurs, the base of the seedling stem produces a brown water-stained lesion. The young stem soon rots, causing the collapse of the seedling. The dark brown particles that appear later in the disease department are sclerotia. The medicines that are affected by this disease include Salvia miltiorrhiza, Ginseng, Atractylodes, Pinellia, Chuanxiong, Chuanxiong, Corydalis, and peony. In addition to the prevention and treatment of rotation, but also in the center of the disease to apply lime powder, spray 40% Schmidt or thiophanate-methyl. There is a layer of frosty mildew on the back of the downy mildew leaves, which is white at the beginning and grayish black at the beginning, which eventually leads to yellowish leaf necrosis. The Chinese herbal medicines that are affected by the disease include Banlangen, Yuanhu, Dangshen, Poria, Adenophora and chrysanthemum. When used for prevention and control, 40% schizophrenia, beta-aluminum, thiazolyl, thiophanate-methyl and other agents can be sprayed. When the leaf spot disease occurs, there are dry spots on the leaves, and the spot size and shape are different. The Chinese herbal medicines damaged by the leaf spot disease include Campanulaceae, Salvia miltiorrhiza, honeysuckle, Chinese wolfberry, heterophylla, chrysanthemum, and white peony. Can be used in the prevention and control of carbendazim, such as zinc and other timely spraying. When the rust occurs, there are yellow or rust-brown worms and bristles on the leaves, and rust-colored powders are scattered when the rust breaks. The rainy season is serious. The herbs that are easily infected with rust include honeysuckle, astragalus, ginseng, white peony, Atractylodes, Codonopsis, papaya and Yuanhu. Can be used triadimefon, dexamethasone, rust and other timely spraying control.