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What are the control methods for soft rot in desert rose?
Desert rose soft rot is a major disease affecting desert rose. The desert rose has gorgeous flowers, blooms profusely, and is a short, sturdy plant; especially the root and stem portions have an ancient, vigorous posture, making it an excellent succulent plant for tropical regions. It has been introduced into our country for more than 10 years and grows well, but the occurrence and damage of its soft rot often causes the entire plant...
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What are the common pest and disease control methods for dragon fruit?
What pests and diseases need to be controlled when growing dragon fruit? Please provide an introduction and guidance. To control pests and diseases when growing dragon fruit, you can refer to the following methods: (1) Pests and diseases. Because dragon fruit is a wild plant and has not been domesticated for long, it has no specific pests and diseases. To date, no fatal insect pests have been found. As for diseases, after transplanting or injury, its resistance weakens and it may be infected by bacteria or viruses, but no local or widespread infectious diseases have been found. As for insect pests, during the branch growth period, the tender shoots will be gnawed by pests, but because the plant produces many tender shoots in a very short time and they grow rapidly (more than 2 cm per day), the amount gnawed by pests is extremely limited and will not affect branch growth.
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Detailed Explanation of Key Points for Goji Berry Pest and Disease Control
1. Black fruit disease, which occurs during the rainy season, causing affected fruits, flowers and flower buds to turn black. Control: remove diseased flowers and fruits, and spray with mancozeb or Tuzet (fentin acetate) for control. 2. Aphids, which mainly damage leaves and tender shoots. Control: spray with 40% dimethoate at 1000 times dilution to kill them.
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How to control anthracnose in Chinese cabbage (napa cabbage) in summer and autumn?
How to control anthracnose in Chinese cabbage in summer and autumn? Please provide an introduction to the control methods. In summer and autumn, anthracnose of Chinese cabbage not only harms Chinese cabbage, but can also harm mustard, radish, turnip and other cruciferous vegetables, affecting the marketability of the vegetables and causing reduced yields. Chinese cabbage anthracnose is a high-temperature, high-humidity disease, at temperatures of 26°C~30°C...
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What pests and diseases should be prevented and controlled when growing bitter melon?
What pests and diseases should be prevented and controlled when growing bitter melon? Please provide an introduction to the control methods. The pests and diseases of bitter melon cultivation include the following and their control methods: 1. Powdery mildew. Symptoms of damage: mainly damages leaves. At the early stage of the disease, nearly circular small white powdery spots appear on the front or back of the leaves, mostly on the back of the leaves, and later the spots gradually expand, ...
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What are the methods for preventing and controlling the degeneration of Agaricus bisporus (button mushroom) spawn
Preventing spawn degeneration can increase yield, reduce the occurrence and development of pests and diseases, and cut down the amount of pesticides used, which is the foundation for producing organic button mushrooms. 1. The ambient temperature for culturing spawn must not exceed 28°C, and properly cultured spawn should not be stored at room temperature for more than half a month. 2. Properly master the time for mycelium to emerge from the substrate...
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Control Methods for Major Sesame Pests and Diseases
How should the major sesame pests and diseases be controlled? Please give guidance. The major sesame pests and diseases include the following: 1. Sesame hawk moth: before the larvae reach the 3rd instar, when there are an average of 2 larvae per 100 leaves on the plants, pesticide should be applied for control. Commonly used pesticides: 2.5% trichlorfon powder or 5% carbaryl powder sprayed at 1.5-2.5 kg per mu; 90% crystalline trichlorfon or 80%...
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What are the chemical weed control methods for summer corn?
How is chemical weed control used in summer corn planting? Please note that the following methods can be referenced for weed control in summer corn planting: 1. Target weeds. According to a survey by the county plant protection station, the main weeds occurring in summer corn fields in our county include: field bindweed, goosegrass, purple nutsedge, crabgrass, purslane, foxtail, creeping thistle, volunteer wheat, etc. ...
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What are the methods for preventing and controlling rose rot?
In the production of pollution-free edible roses, preventing pests and diseases and keeping the rose plants vigorous is the best way to control disease. Usually the following preventive measures are taken: 1. Select disease-resistant lines and use healthy plants as seedlings. 2. Avoid applying too much nitrogen fertilizer, so that the plants do not grow leggy and become insufficiently sturdy, and are prone to...
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How to control the mango stem borer in mango cultivation?
How to control the mango stem borer when growing mangoes? Please explain the methods. The mango stem borer belongs to the order Coleoptera, family Cerambycidae, and occurs in all mango-producing areas of southern China. Its larvae bore into and feed on branches and trunks, weakening the affected plants; in severe cases they can cause the plants to die, and infested branches break easily in the wind. This pest has 1 generation per year and mainly overwinters as...
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