Symptomatic atrophic atrophy, also known as hidden mulberry, leading mulberry, vicissitudes, etc., is an important mulberry disease. All planting mulberry areas occur. The diseased leaves were small, shrunken, and the leaves of the rifting varieties turned round, the branches were short, the leaves were disordered, and the internodes were shortened. Moderately infected, axillary buds at the top or middle of shoots germinated earlier, some produced many lateral branches, and the whole leaves were yellowed, resulting in early fall of autumn leaves, early spring buds, and no buds. The infected branches are lean and leggy, and the diseased leaves are small. When all the branches of the whole plant are affected, the apical leaves are about 6 cm long, and finally the whole plant is dead. Transmission routes and pathogenic conditions The pathogens in the infected mulberry plants overwintering can be transmitted by grafting, and can also be transmitted by mediator insects, P. argentifolia, and P. maculata. The disease mostly occurs in the summer hot season, and the disease is heavier in July-August. On the production of red skin species, Jian Tesang, Luan County Qingsang, red top Pisang, U Pisang, Huo-Sang and other diseases. Partial application, over-application of nitrogen fertilizer Mulberry incidence. Fried Vegetables Products,Fried Carrot,Vacuum Fried Products,Vacuum Dried Onion Huaiyang County Wanyuan Garlic Foods Processing Industries Co.,Ltd , https://www.wanyuangarlicfood.com
The pathogen Mycoplasmalike organism referred to as MLO. There are round-to-elliptic Mycoplasma plasmids in sieve cells that are mature in the diseased plants and are 80-1000 nm in size. The bilayer boundary membrane of the unit membrane is clear. Existing people think that the pathogen of this disease is in addition to a linear virion, which acts synergistically with the mycoplasma to cause the disease.
Prevention methods (1) Strict quarantine, prohibiting the introduction of seedlings from the ward. (2) Husang No. 7, No. 32, No. 35, No. 197, No. 237 and other resistant varieties were selected. The head of lotus leaf, white lotus leaf, and Tongxiang blue are also more suitable for disease resistance. The diseased plants are harvested once every two years, and they are effective for recovering minor strains. (3) The scion before grafting is soaked in a temperature of 55°C for 10 minutes for physical control, which can be used as a preventive measure. (4) In the hatching period of the diamond leafhopper, spray 10% net (imidacloprid) WP or 5% adrenaline EC 2500 times once every 30 days for 1 or 2 times.