leaf virus Learn more about leaf virus
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How to prevent tomato virus disease reasonably? (Control methods included)
How to prevent tomato virus disease reasonably? (Control methods included)
2020-04-17 -
To understand the relationship between flower planting and meteorological conditions, and the types of flower virus diseases.
Types of flower virus diseases
2019-06-08 -
Diagnose orchid virus by yourself
Diagnose orchid virus by yourself
2018-05-04 -
Prevention and treatment of watermelon virus disease what drugs are used for watermelon virus disease
Prevention and treatment of watermelon virus disease what drugs are used for watermelon virus disease
2018-06-27 -
Plant virus and Orchid variation
Plant virus and Orchid variation
2018-05-06 -
Orchid breeders dream of orchid mutation. These four precious orchids are infected by the orchid strain.
The variation of orchids, like that of all living things in nature, is very complex. The frequency of biological variation is very low under natural conditions. There are two kinds of biological variation, one is genetic variation, the other is orchid virus.
2018-05-09 -
The latest prevention and control measures of watermelon virus disease
Watermelon virus disease is also known as small mosaic disease and mosaic disease. as the name implies, the main harm of this disease is flowers and leaves. This disease occurs in all parts of China where watermelons are grown, among which mosaic virus is the main disease in the north and fern leaf in the south.
2020-11-10 Latest watermelon virus disease prevention and control measures -
Prevention and control measures of watermelon virus disease
Prevention and control measures of watermelon virus disease
2018-10-26 -
Prevention and treatment of dwarf strawberry virus disease caused by leaf wrinkle deformity
Prevention and treatment of dwarf strawberry virus disease caused by leaf wrinkle deformity
2018-07-11 -
Occurrence and control of carnation virus disease in protected area
Symptom recognition carnation vein mottle disease carnation leaf vein mottle virus infects carnation, Chinese carnation and American carnation, all produce systematic mosaic, and old leaves often appear hidden phenomenon in winter. Discoloration spots appeared on the petals, especially in the varieties of large red flowers. Carnation latent virus disease Carnation generally shows no symptoms or mild mosaic symptoms after being infected by the virus. However, mosaic symptoms occurred when carnation latent virus and carnation vein mottle virus were co-infected. Carnation
2019-01-16 -
Tomato planting techniques: what is Tomato Leaf Curl virus Disease?
What is tomato leaf curl virus disease? Please introduce that after tomato leaf curl virus disease is infected, the upper leaves become smaller, the leaf margin curls up, the leaves wrinkle and curl, the internodes become shorter, it is difficult to blossom and bear fruit, the fruit shape is small, and the ripening is slow. The infected plants grew slowly and were obviously dwarfed. Harm the curled leaves of tomato.
2018-07-18 -
What are the symptoms and control methods of tomato virus disease?
Tomato is one of the common vegetables in our daily life, which is deeply loved by people because of its rich nutrition, and the planting area is also very extensive. In the specific planting process, it is easy to produce tomato virus disease. What are the symptoms of the disease? How to prevent and cure it? Let's come together next.
2020-11-09 Tomato virus disease symptoms and prevention and control methods what are -
Control methods of dwarf rape virus disease caused by leaf wrinkling and twisting disease
Control methods of dwarf rape virus disease caused by leaf wrinkling and twisting disease
2018-07-11 -
Identification and prevention of viral diseases
Identification and prevention of viral diseases
2018-05-06 -
Leaf curl disease in geranium virus disease
There are many kinds of geranium virus diseases, and the following common virus diseases are mainly distributed in Europe, America and Asia. Geranium leaf curl disease is also known as geranium wrinkle leaf disease. [pathogen] Pelargonium leaf curl virus (Pelargoniumleafcurlvirus,PLCV), lethal temperature 85-90 ℃. [symptoms] there are faded green spots on the tender leaves, then develop into yellow round or stellate spots, dark yellow in the center, light halos around, and necrotic perforation.
2019-01-16 -
Symptoms and control measures of passion fruit virus disease
Symptoms and control measures of passion fruit virus disease
2020-04-15 -
Orchid ring spot
Orchid ring spot
2018-05-04 -
Symptoms of rice virus disease
The damaged plants were dwarfed and the leaves changed color, their growth declined, and the leaves were orange to yellow in color. The disease of indica rice is mostly orange or slightly reddish, also known as red leaf disease. The young leaves are mottled and the old ones are mottled. At present, 11 kinds of rice virus diseases (including two kinds of mycoplasmic diseases) have been found in China. they are common dwarf disease, yellow leaf disease, striped leaf blight, black streak dwarf disease, Verticillium wilt, grass dwarf disease, cluster dwarf disease, sawtooth leaf dwarf disease, orange leaf disease, Donggler disease and tumor dwarf disease. Rice common dwarf disease and yellow leaf disease are harmful in southern China.
2019-01-16 -
How to control virus disease of pepper
How to control virus disease of pepper
2018-07-14 -
mosaic disease of common diseases of Canna plantain
Mosaic disease is one of the most common diseases in canna. The incidence rate of canna cultivated in East China and South China is higher than that in North China. What should we do once canna is infected with this disease? Specific solutions are as follows
2018-07-01