Planting Technology Lists
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Cutting Propagation of Pelargonium
Family cutting propagation of geranium, because of its dry stem fleshy, contains more water, so there is often the phenomenon of decay, affecting survival. For this reason, the author makes some improvements in practice combined with re-cutting after flowering, so that when the cuttings are cut, the survival rate will be significantly improved. The specific methods are as follows: select stout branches, from the stem tip down every 4 to 6 leaves, or measure the length of about 7 cm to 10 cm, until the general post-anthesis plant routine re-cutting height, pre-designed into several cuttings. Then, 0.5 cm below the stem node, small
2019-01-16 -
Monthly management of geranium
Families and genera: Bovidae, Pelargonium. Scientific name: Pelargoniumhortorum. Aliases: Hydrangea, foreign butterfly, paraffin red. Habits: pelargonium, native to southern Africa, is a perennial herb with a sexual preference for a warm and humid environment. It is not resistant to cold and summer heat. The suitable temperature for growth is 13-19 ℃ from March to September and 10-12 ℃ in winter. Like plenty of sunshine, afraid of sun exposure in summer, suitable for semi-overcast environment. It is slightly resistant to dryness for fear of wet water. Require fertile, loose, well-drained soil. January: Fangyang
2019-01-16 -
Ring disease of geranium
Geranium ring disease is a common leaf disease of geranium. It has a wide host range and can damage a variety of woody and herbaceous flowers, seriously affecting ornamental plants. Symptoms: at the initial stage of the disease, green spots appear on the susceptible leaves, and then the spots gradually expand, forming a larger round spot. The disease spot is dark brown and has concentric rings. In the later stage of the disease, a black-green mold layer appeared on the disease spot, which was the conidia of the pathogen. Pathogen: the pathogen is Alternaria alternata (AlternariatennuisNees).
2019-01-16 -
Leaf roll disease of geranium
Geranium leaf curl disease, also known as geranium wrinkle disease, is a viral disease and is only found in Shanghai. Symptoms: the leaves of susceptible plants curled downward and atrophied. When the disease is serious, the plant necrosis. Pathogen: the pathogen is geranium leaf roll virus (PLCV). Disease regularity: the virus is transmitted by juice, grafting and soil, and no vector insects have been found. The symptoms of the disease are not obvious in summer and autumn, and the virus can be transmitted from the remains of the virus-carrying plants pruned.
2019-01-16 -
Processing of geraniums?
Processing of geraniums: potted geraniums are suitable for display in public places such as halls, dining cars and meeting places to form a warm atmosphere. Decorating the family balcony, windowsill and desk is more effective, blooming throughout the year, showing a scene of prosperity. Planting or decoration in the open field, decorating rock gardens, flower beds or flower paths can also show the beauty of the plant shape and color of geraniums.
2019-01-16 -
Ring spot disease of geranium
[pathogen] Tobacco ringspot virus (Tobaccoringspotvirus,TomRSV), lethal temperature 58 ℃, geranium ringspot virus (prlargoniumringspotvirus,PRSV), lethal temperature 85 ℃. [symptoms] the leaves showed chlorotic maculae, ringspots and lines, the plant growth was short, and the flower development was abnormal. [incidence regularity and epidemic characteristics] selection of cuttings from diseased plants is the main way of virus transmission. Juice
2019-01-16 -
Prevention and treatment of mosaic disease (cmv) of geranium
The symptoms of the leaves are mosaic-like, the leaves are smaller than normal, and show uneven. Some varieties produce chlorotic spots and broken flowers. The pathogen is cucumber mosaic virus (CMV). The route of transmission is transmitted by sap and aphids. Prevention and control methods 1. In the process of management and operation, often use soapy water to wash and disinfect. 2. Timely control of aphids and eradication of surrounding weeds.
2019-01-16 -
Black stem rot of geranium
Pelargonium black stem rot is a disease that occurs in the stem of pelargonium, which causes the stem of the plant to rot, so that the whole plant wilts and dies. Symptoms: the disease occurs on both cuttings and adult plants. The susceptible cuttings began to rot from the base of the stem, and gradually developed upward, resulting in death. After the onset of the adult plant, the diseased part became black, rotted, gradually developed upward, and finally the leaves fell off. when the disease was serious, the diseased part cut the stem around, resulting in the death of the plant. Pathogen: the pathogen is Pythiumsplendens
2019-01-16 -
Prevention and treatment of black shank disease of geranium
The symptom of this disease occurs on both cuttings and adult plants, and the damage of cuttings is more serious, which begins to rot from the base of the stem, develops upward, and causes death. After the onset of the disease, the adult plant turned black and expanded upward, and the leaves fell off, so that the whole plant withered and died. The pathogen Pythium ornate [PythiumsplendensBraun] belongs to the subphylum flagellum. The hyphae are well developed, branched, without septum, and show white cotton floc shape when the growth is exuberant. The sporangia are filamentous, round or subrounded, producing zoospores and causing infection.
2019-01-16 -
Winter maintenance of geranium
The geranium likes to be warm in winter and cool in summer. It can blossom normally when the indoor temperature is kept at 15c in winter and the temperature is above 8 ℃ at night. But the optimum temperature is 15-20 ℃. Geraniums like dryness, hate dampness, watering in winter should not be too much, should be dry and wet. When the soil is wet, the stem is tender, which is not conducive to the sprouting and opening of flower branches; long-term excessive humidity will cause plants to grow too long, flower branches will move up, and the leaves will gradually yellow and fall off. Geraniums need plenty of sunlight for a long time, so they must be placed in the sun in winter. Lack of light will lead to long stems and leaves.
2019-01-16