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[Pathogen] Carnationveinmottlepotyvirus (CaVMV). The mitochondria are linear, ranging from 790nm to 18nm to 19nm, and are also reported to be 600-710nm and 13nm. The sedimentation coefficient is about 144S. A260/280=1.15. The antiserum test was similar to that of Ma Ling potato virus Y. Lethal temperature (TIP) 60 ~ 65 °C; dilution end (DEP) 10-3 ~ 10-5; in vitro survival period (LIV) at 13 °C for 2 ~ 10d. The virion is dispersed in the cytoplasm and has a wind-like inclusion body. Carnation vein mottle virus and carnation latent virus can be distinguished by serum reaction and electron microscopy. The use of American dianthus for inoculation is most convenient because the carnation latent virus does not cause symptoms of American dianthus. Other carnation viruses (such as mottle, ring spot, ring, and ring spot) all have symmetric plasmids that cause the corresponding indicator plants to exhibit obvious symptoms.
There are few studies on the strains of the virus and it was found that although the different isolates caused similar symptoms of carnation, they had different invasive abilities on the ochre, and the typical strains infested with amaranth and Tailhorn caused systematic pulse. Mottled, while other isolates did not infest. There is also a small difference in their in vitro survival.
[Implications of the disease] Peach pods are non-persistent. Juice can be spread. It has not been found that the seeds of the Anisiana and the American Dianthus can be transmitted to the virus. If the virus-carrying plants are used as the cutting material, the virus will be greatly affected.
[Control]
1. Carnation plants are difficult to detoxify by heat treatment, but they are easily detoxified by the shoot tip culture method. The virus-free seedlings were used as breeding mothers to establish a detoxified female parent base.
2. Use 40% Dimethoate EC 1000x, or 40% Dimethoate EC 1000x, or 80% Dichlorvos EC 1000x to control aphids and reduce vector insects.
3. Pay attention to field health management, attach importance to tool disinfection, and reduce human transmission.
4. Emphasis on disease resistance breeding. Chinese Dianthus has a strong ability to resist disease, but its flowers are small and its flower color is poor. Carnations are characterized by large flowers and fresh flowers. A variety of measures have been adopted to cultivate new varieties of carnation that have a variety of good traits and strong resistance to disease.
[Symptoms] System mosaics, veins mottled, winter old leaves hidden disease. Fragmented flowers, especially the petals of red varieties are more severely colored.