Planting Technology Lists
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Grey mold of carnation
[introduction] the disease is a common disease of growing carnation in greenhouse and greenhouse, which can cause brown spot or rot of petals, which seriously affects the quality of cut flowers. [symptoms] Botrytis cinerea mainly occurs when light brown water stains begin to appear at the edge of petals, and then several petals are entangled by gray fungi. If the environment is wet, the petals rot and there is gray mildew on it. When the flower bud occurs, there are waterlogged irregular spots, soft rot, but also produce gray mildew.
2019-01-16 -
Control of Botrytis cinerea in Carnation
Gray mold of carnation, also known as carnation blight, is a common disease of growing carnation in greenhouse and greenhouse. The disease harms the petals of the plant, causes brown spots and rot on the petals, and seriously affects the quality of cut flowers. Symptoms: the disease mainly occurs on petals and buds, and occasionally occurs in stems and leaves. At the beginning of the disease, the susceptible flowers began to appear light brown water stains from the edge of the petals, and then several petals were entangled by gray fungi. In the later stage of the disease, if the environment is wet and the petals rot, gray appears on it.
2019-01-16 -
Blight of carnation
The pathogen of the disease is called Cucurbitaceae, which belongs to basidiomycetes. Its asexual state is called Rhizoctonia solanacearum, which belongs to semi-known fungi. The pathogen overwintered mainly as sclerotia or mycelium in the soil with the disease residue, and could saprophyte in the soil for 2-3 years. The pathogen directly invaded the host after spreading through water flow and farm tools. The disease is easy to be induced by deep sowing, high temperature and too wet soil, and it is also easy to occur when cultivated in open field. The disease is serious, especially in the warm and rainy season. The symptoms are also known as stem rot and basal rot. Begin to produce dark brown oval or irregular water stains at the base of the stem near the ground.
2019-01-16 -
Fusarium wilt of carnation
Fusarium wilt of carnation occurs in all the planting areas of carnation, and the damage is common. [pathogen] Fusariumoxysporumf.sp.dianthi (prill.etDel) Snyd.etHans belongs to Fusarium oxysporum and Fusarium oxysporum. [symptoms] the disease is mainly invaded by the roots of carnation and colonized in the vascular system. Chlorosis, yellowing, browning and wilting occur in the lower leaves or stem nodes of the damaged plant, usually only on one side of the plant at first.
2019-01-16 -
Two main diseases of carnation
Carnation is most susceptible to leaf spot, withered branches and calyx rot. The spores of leaf spot blight remain in carnation plants and withered plants and are transmitted through the air. When there is water on the surface of the plant for 8-10 hours continuously, germs can infiltrate while wet. The symptoms of leaf spot blight are as follows: the leaves are grayish brown or the petals appear with purple spots. The spots are formed by black spores, and the branches and stems begin to wither from the internodes and then develop into a circle of withering around the stems. The pathogen of calyx rot remains in the old leaves, lower stems or withered plants of carnation. high
2019-01-16 -
Vein spot barge disease of carnation
[symptoms] systemic mosaic, mottled veins, old leaf occult disease in winter. The broken color of flowers, especially the petal broken color of red varieties is more serious. Carnation vein mottle virus (Carnationveinmottlepotyvirus,CaVMV). The somes are linear, 790nm × 18~19nm, and also reported as 600~710nm × 13nm. The settlement coefficient is about 144s. A260,280,1.15. Antiserum test
2019-01-16 -
Cutting Propagation of Carnation
Carnation cuttage propagation, can be in September to March to cut the middle of the strong and slightly hardened lateral branches, 6 to 9 cm long, cutting. Rooting lasted from 10 ℃ to 13 ℃ at room temperature for about 20 days. In terms of management, more fertilizer should be applied at the seedling stage, and the heart should be picked when the seedling is 1.5 cm high, so that it can branch more and bloom luxuriantly. When blooming, leave the terminal bud and remove the axillary bud. Water frequently in summer and spray water on the leaves once a day to avoid strong sunlight and pay attention to air circulation. Keep it indoors or at a higher temperature in winter
2019-01-16 -
Latent disease of carnation
[symptoms] there are few or no symptoms on carnation. The infection of carnation latent virus alone is not serious, but when it is co-infected with carnation vein mottle virus, it produces serious mosaic. Carnation latent virus (CarnationlatentCaravirus,CLV). It belongs to the genus Carnation latent virus. The virion is straight or slightly curved, 652nm × 12~13nm, and it has also been reported as 620~690nm × 10~12nm.
2019-01-16 -
Latent mosaic disease of carnation
[pathogen] Carnation latent virus (Carnationlatantvirus,CaLV), lethal temperature 60-65 ℃. The in vitro survival time was 20 ℃ for 2-6 days. [symptoms] the virus generally showed no symptoms after infecting carnation, but could significantly reduce the plant growth and the quality of flowers. Mosaic can be produced when co-infected with carnation vein mottle virus. Obvious chlorotic foliage can be formed on the indicator plants. [incidence regularity and epidemic characteristics] the above-mentioned viruses
2019-01-16 -
ring rot of carnation
Carnation etchedring virus (CaERV), lethal temperature 80-85℃. The survival time in vitro is 140 days. [Symptoms] Annular or wide linear necrotic spots appear on leaves, which are more obvious on seedlings. In severe cases, necrotic spots are connected and leaves are twisted.
2019-01-16