Identification and treatment of mosaic yellow disease
Mosaic disease and yellowing disease are two common types of diseases on ornamental plants. Although their symptoms and characteristics are similar, their causes, occurrence patterns, and control methods are quite different. Now we will give a general introduction to the nature and characteristics of the two types of diseases for reference. First, mosaic disease: green leaves with dark green, light green, light yellow, yellow and white and other patches (or markings). Such as camellia leaf mosaic, rose mosaic, a bunch of red mosaic disease, cannavirus mosaic disease, gladiolus mosaic disease, tulip mosaic disease, caused by a variety of mosaic virus infection. The disease is transmitted through locusts, friction and grafting. Control methods: 1. Timely control of locusts and other virus-mediated mediators; 2. Diseased plants should not be used as propagation material and should be destroyed in time; 3. Chemical control: optional use of TS wettable powder, phytosanitary emulsion, virus A, virus net, 83 Immune enhancer, antiviral agent No. 1, antiviral wettable powder, bactericidal clear, attenuated vaccine N14, satellite ribonucleic acid S52, plant virus inactivation agent - 912 and so on. It should be noted that the “flower mosaic†phenomenon on many flowering plants is actually not a virus disease but a special kind of species, such as Clivia vulgaris, galangal galanga, golden heart spider plant, golden heart boxwood, silver edge Boxwood, Sprinkle gold leaf blue, mosaic evergreen, Ye Yilan, mosaic green laminaria and so on. Second, yellowing disease: refers to the leaf surface evenly changed to yellow-white, according to the different pathogens can be divided into two types, that is, physiological and pathological jaundice yellow disease. (1) Physiological jaundice: The etiology of the disease is relatively high. Among them, iron deficiency yellowing is more common. It occurs in the northern areas where young flowers such as azalea, gardenia, hydrangea, and jasmine are cultivated. Yellow, the leaves become brown and dry when severe. In addition, sulfur deficiency, nitrogen deficiency and excessive light, excessive watering, low temperature, drought, etc. can also cause leaf yellowing. Such diseases are mainly resolved through measures such as strengthening cultivation management and rational fertilization, and generally do not require medication. (B) pathological jaundice: This is a class of infectious diseases caused by mycoplasma (a kind of microbe between the bacteria and the virus), such as aster yellowing disease, and flavonoids yellowing disease Chrysanthemum yellowing disease, delphinium, etc. The difference between pathological jaundice and physiological jaundice lies in the fact that the former is infectious and the latter is not. The former often involves circumstance phenomena (adventitious shoots proliferate into "broom-like") when the symptoms of jaundice occur. Control methods: 1. Prevent and treat pathogens such as leafhoppers in a timely manner; 2. Improve breeding methods, avoid transmission through grafting, etc.; 3. Use non-toxic parent plants for propagation; 4. Chemical control: Use tetracycline and other agents for treatment. Plant Extract,Full Spectrum Cbd,Cannabis Oil,Cbd Hemp Extract Xi'an Jmlai Bio-Tech Co., Ltd. , https://www.jmlaisarms.com