Bamboo root rot is a common disease that damages bamboo, affects the growth and development of bamboo and the ornamental value of bamboo. It is urgent to attract the attention of gardeners. Dangerous bamboo root rot often endangers perennial bamboo forest. The pathogenic bacteria accumulate, spread, and infect in soil. In severe cases, the incidence rate can reach more than 90%. In the late stage of plant disease, a large number of dead stems are found due to the difficulty in absorbing water and nutrients from the roots. The disease will not only cause bamboo shoots to withdraw from bamboo shoots, but also cause the withering of tender bamboo. It will also affect the quality of light bamboo and the amount of bamboo shoots produced in the next year, resulting in a reduction in the ecological, economic, and social benefits of light bamboo. Symptoms The disease mainly occurs in the roots of light bamboo, and the main roots of the light bamboo become dark black after disease. The diseased part produces yellow-white or apricot yellow mycelium. The lateral roots and fibrous roots are perishable and appear black or yellowish brown; It becomes black in sauce and produces a white or apricot yellow powder on it and densely covered with black granular fruiting bodies. The dried bamboo is changed from green to yellow-brown, and some produce dark brown or purple, irregular, lumpy, strips. Stripes. The pathogen of the disease belonged to the fungus community Deuteromycotina subfamily of the genus Aspergillus spp. Fusarium spp., whose small conidia were born in aerial hyphae, clustered, ovate; large conidiation spores or moon-shaped spores. Being acicular, with long and narrow apical cells and stem cells, with multiple septa. The pathogenesis of light bamboo root rot is a soil-borne disease caused by Fusarium bacteria. It occurs mostly in the roots and stems of light bamboo. Because these parts are often wet and lack of light, the fungi of the genus Mediocydium spp. , it will soon cause rot, causing water-stained brown spots and soft rot on the roots. It will rot and peel after being rotted and peeled. The xylem is dark brown. The epidermis will gradually turn gray and white, and will gradually spread, and then spread to the entire cortex of the bamboo, cut off nutrients and moisture. The transmission led to the gradual loss of water on the top leaves and wilted from top to bottom, causing the death of the whole plant. Prevention and control measures to control bamboo root rot disease, the key is to improve the bamboo resistance to the disease, to strengthen irrigation, weeding, soil loosening, fertilization and other production management measures, combined with the use of pesticides to take comprehensive control technology. 1. Reasonably irrigated. The light bamboo roots are shallow, the water evaporates quickly, and the water requirement during the growing process is large. Therefore, in addition to the winter, the rest of the season must be irrigated. The spring should be used for watering the bamboo shoots in early stages, water should be poured after the bamboo shoots shoot out, and water should be poured in the summer. Water, flooding before and after the beginning of winter flooding, so that water penetrates the lower layers of the soil. In short, master the principle of irrigation with "head water early, end water full, and medium water skillful". 2. Before the closure of the new bamboo plantation, the ramie grass loose soil is generally required to be mulched twice or three times per year depending on the actual situation. Newly-created bamboo forests are prone to weed growth and compete with bamboo for water and nutrients, and timely cultivating soil and eliminating weeds. In April, the weeds in Zhuyuan were relatively tender, and weeds were easily perishable after weeding. It was necessary to press green grass in time and push the tender grasses into the soil afterwards, which could have the effect of disinfestation and fertilization. The second and third weeds can be better in June and August and September respectively. Herbs can reduce the consumption of water and nutrients by weeds, which is beneficial to the robust growth of bamboo. 3. Scientific fertilization and fertilization is also one of the effective management measures to reduce root rot of Diptera, which can promote the growth of Hsinchu and advance forestation. In autumn and winter, effective organic fertilizers can be applied to light bamboo, such as manure, earth miscellaneous fertilizers, and pond mud. Applying organic fertilizer can increase forestry fertility and maintain soil temperature, which is beneficial to the wintering of whipping buds in Hsinchu. Fertilizer can be applied in the ditch or digging hole near the bamboo, or it can be spread on the ground. After the application, the soil must be covered. Usually, 3000 to 4,000 kg is applied per 667 square meters. 4. Chemical control In the occurrence of large-scale root rot, chemical control is still an indispensable and effective method. At the time of onset, 40% root rot or 1000 times solution can be sprayed or watered on the diseased plant, or carbendazim powder spraying or solvent pouring on bamboo forest can be used for prevention and treatment. The use of 95% mycophenolate to perfuse the bamboo disease strain has the advantages of rapid effect, high efficacy, and long duration. It can basically control the serious damage of root rot, and can promote the increase of the density of bamboo and accelerate the growth of soil microorganisms. The ecological environment also has no destructive effect and has a good control effect. June and July every year is the best time to prevent the disease. Tilapia Frozen Fish,Frozen Tilapia Fillets,Frozen Tilapia Loin ,High Quality Tilapia Guangzhou Luxe Seafood Enterprises Ltd. , https://www.seafoodluxe.com