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What are the control methods for cherry blossom crown gall disease?
Cherry blossom crown gall disease is also known as crown gall. The crown gall pathogen has a very wide host range, with about 330-plus species in 142 genera across 59 families. It harms more than 600 species of plants, mainly forest plants, economic forest plants and landscape plants. Peach, plum, pear, apple, Chinese rose and cherry blossom are all highly susceptible to crown gall. Flowers and trees infected with this disease have their root development affected, often causing nutrient deficiency, showing a weakened state, and finally dying. Symptoms: It mainly occurs at the root crown and on large roots, and sometimes also on lateral roots. The main symptom is the formation of tumors of varying sizes and irregular shapes on the roots.
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How do cherry blossoms reproduce? A detailed explanation of common propagation methods
Grafting is the main method, though sowing and cuttings can also be used. For grafting, cherry or wild cherry (Prunus pseudocerasus) seedlings are generally used as rootstock, with superior cherry blossom varieties as scions. Cleft grafting is mainly used, while budding is rarely adopted. Cleft grafting is carried out in March. Select vigorous 1-year-old cherry blossom branches as scions, cut them into small sections about 8 cm long, each with 2-3 plump buds. Use a grafting knife to cut two symmetrical slanted surfaces of different sizes at the lower end of the scion. One slanted surface is 2 cm long, cutting away 1/3 of the xylem; the other slanted surface is 1 cm long
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Control methods for stem-boring pests damaging cherry blossoms
The stem-boring pests that damage cherry blossoms include longhorn beetles and the coffee wood moth (Zeuzera coffeeae). Their control methods are: 1. Longhorn beetles. The longhorn beetles that damage cherry blossoms usually include the citrus longhorn beetle (Anoplophora chinensis), the glossy green longhorn beetle (Anoplophora glabripennis), and the peach red-necked longhorn beetle (Aromia bungii). ① Citrus longhorn beetle. One generation occurs per year. When adults emerge from late May to early June, capture the adults: before laying eggs, the citrus longhorn beetle adult first bites a notch about 2 mm deep and about 8 mm long in the bark in the shape of the Chinese character "eight" or "ding", then lays eggs inside it. During the peak egg-laying period in mid-to-late July, search for the notches on the trunk and crush the eggs.
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Detailed Monthly Care and Management Methods for Cherry Blossoms
Family and genus: Rosaceae, Prunus. Scientific name: Prunus serrulata. Common names: mountain cherry, Fukushima cherry, green-barked cherry, mountain cherry. Habits: Cherry blossoms originated in China, Japan and Korea. They are deciduous trees with strong adaptability, preferring sunlight and a relatively humid climate. They are highly cold-tolerant, but not tolerant of waterlogging, smoke damage or saline-alkaline soil. They prefer well-drained, fertile loam with a slightly acidic pH of 5.5-6.5. January: Pay attention to cold protection. February: For transplanting and cultivation, keep
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Symptom Identification and Control Methods of Crown Gall Disease in Cherry Blossoms
Cherry blossoms are distributed in China's Liaoning, Hebei, Anhui, Jiangxi, Zhejiang, Jiangsu and Guizhou; they are also widely distributed in Japan and Korea. They prefer light and deep, fertile, well-drained soil, and have weak resistance to smoke and dust, harmful gases and sea breeze. They have a certain degree of cold tolerance, a relatively shallow root system, and are easy to cultivate. Cherry blossoms bloom profusely in spring and are very beautiful. They are suitable for planting on hillsides, in courtyards, in front of buildings and beside garden paths. This disease is a common and serious disease of cherry blossoms, occurring widely in areas where cherry blossoms have been introduced. Zhengzhou, Chengdu, Hangzhou, Jinan, Wu
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A Detailed Guide to Common Cherry Blossom Diseases and Care Management Methods
1. Cherry blossom leaves are glossy, thick and green in spring, evergreen in summer, and turn red in autumn. These are all signs of vigorous growth in cherry blossoms, and they also indicate that the cherry blossom's flowering the following year will be relatively ideal. 2. ① The cherry blossom trunk shows symptoms of gummosis. This phenomenon is not a disease, but is caused by moths boring into the trunk to lay eggs. The eggs should be promptly dug out with a knife and medication injected, while also improving the soil, strengthening water and fertilizer management, and pruning rationally. ② Many mushroom-like and moss-like growths appear on the trunk. This indicates that many pathogens have invaded the branches of the cherry tree
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What are the common methods for preventing and controlling cherry blossom pests and diseases?
There are many types of cherry blossom pests and diseases. The common ones are described below: Perforation-type brown spot disease occurs in May and June. Small purple-brown spots appear on the leaves, then gradually expand into circles. After the diseased spots dry and shrink, they become small holes. The pathogen mostly overwinters on diseased branches and leaves. The optimum temperature for its development is 25°C to 28°C. It spreads by wind, and rainy seasons favor infection and disease development. When the tree is weak, drainage is poor, and ventilation and light penetration are poor, the disease occurs severely. Control methods: (1) Strengthen cultivation management, prune and trim reasonably
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Occurrence of Tulip Diseases and Integrated Control Methods
Tulip is a perennial bulbous herbaceous plant of the genus Tulipa in the family Liliaceae, also known as foreign lotus, grass musk, peony lily, etc., and is one of the most popular cut flowers in the world. With the adjustment of industrial structure, many places in Jiangsu Province have formed tulip fresh cut flower bases. However, in the production process, we found that every stage may be harmed by fungal, bacterial and viral diseases, thereby affecting the normal growth of plants, reducing the quality and ornamental value of cut flowers, and in severe cases causing devastating damage. Therefore, preventing the occurrence and development of tulip diseases is the
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Symptoms and control methods of tulip southern blight
Symptoms: The whole plant wilts, with white mycelial strands or rapeseed-like tan-brown small sclerotia wrapped around the stem base, and the affected parts turn brown, rot and decay. Large amounts of white mycelial strands and tan-brown fungal bodies are visible on the soil surface. Pathogen: Sclerotium rolfsii Sacc., called southern blight, belongs to the Deuteromycotina fungi. The hyphae are white and silky, spreading in a fan-like or radial pattern, then gathering into mycelial strands or tangling into sclerotia. The sclerotia resemble rapeseeds, initially white to yellowish-white, later turning tan-brown, round, with a smooth surface. In addition, it has been reported that Corticium rolfsii
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What are the control methods for leaf spot disease in geraniums?
Control of leaf spot disease in geraniums: 1. For small-scale plantings, remove diseased leaves by hand and burn them in a centralized manner. 2. Improve the growing environment. In areas with severe outbreaks, practice crop rotation, avoid planting too densely so as to allow good ventilation and light penetration, and drain standing water promptly. 3. During the disease period, spray with 100 to 150 times diluted Bordeaux mixture or 80% Captan wettable powder at 500 times dilution; you can also spray a mixture of 50% Thiophanate-methyl at 1000 times dilution and 80% Captan at 500 times dilution, or spray a 45% Chlorothalonil and carbendazim mixed suspension concentrate at 1000 times dilution, which gives better results than a single fungicide.
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