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How effective is doramectin in treating swine parasitic diseases?
Doramectin is a new-generation macrolide antiparasitic drug. Compared with other commercially available ivermectin-class products, it has a broader antiparasitic spectrum, better efficacy, and a longer effective period for preventing parasite reinfection, making it currently the most effective and most development-worthy new veterinary antiparasitic drug in the world. Doramectin is obtained by biosynthesis from a genetically engineered mutant strain of Streptomyces avermitilis after the addition of cyclohexylcarboxylic acid, and it has a cyclohexyl group at the C25 position. Doram
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Why soybean root cutting and pinching can increase yield
1. High-yield cultivation method for soybean by root cutting and pinching: Direct sow soybeans with a row spacing of 50 cm. On the 8th to 9th day after sowing, carry out pinching; on the 10th to 11th day, carry out root cutting. When cutting roots, use a thin iron shovel to cut the main root at a depth of about 5 cm below the soybean seedling. Insert the shovel at an angle and pull it out from the same position to avoid displacing the soybean seedling and damaging the lateral roots. The root cutting position should be controlled at about 2.5 cm below the soybean seedling stem. Too deep or too shallow will fail to achieve the expected purpose and may even cause seedling death. 2. Several issues to note 1. Density: Soybean density should be determined according to the variety and cultivation conditions,
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It is the right time for honeysuckle pest and disease control, and Xiushan County, Chongqing Municipality is strictly implementing it
Honeysuckle, formerly known as Japanese honeysuckle, also called silver flower, honeysuckle flower, or double flower, is a twining vine of the Caprifoliaceae family. The county has developed a honeysuckle base of 60,000 mu. Because the base farmers manage extensively and supporting technologies have not kept up, especially pest and disease control management, the yield of honeysuckle is low and the quality is poor. According to a survey by the county plant protection station, honeysuckle pests and diseases occur relatively commonly in our county, among which honeysuckle powdery mildew, brown spot disease, aphids and red spiders are relatively serious in occurrence and damage. At present, it is the best period for controlling honeysuckle powdery mildew, brown spot disease, aphids and red spiders and other pests and diseases
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How to prevent and control mushroom pests and diseases? These methods you need to master
1. Mushroom brown rot: also known as mushroom Mycogone perniciosa disease, bubble disease, white rot, etc. It is currently the most harmful disease in mushroom cultivation. In addition to harming mushrooms, it can also harm oyster mushrooms, straw mushrooms, silver ear fungus, reishi mushrooms, etc. The disease shows different symptoms at different developmental stages of mushrooms. When mushrooms begin to form small pinhead primordia (before fruiting body differentiation), they are susceptible to infection, forming hard, puffball-like irregular tissue masses. These are covered with a layer of white fluffy mycelium, which later darkens and finally turns dark brown, with dark brown droplets exuding from the diseased tissue. Small mushroom primordia beneath the casing soil can also
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What are the integrated pest and disease control measures for mushrooms?
Mushrooms are the main cultivated edible fungus variety in Zhangpu County, Zhangzhou City, Fujian Province. However, pests and diseases have long plagued the vast number of mushroom growers. The integrated control measures are described below: (1) Strengthen cultivation management. 1. Disinfection of the cultivation house. For disinfection of the cultivation house, a mixed solution of formalin and dichlorvos can be used for fumigation. Before fumigation, first moisten the floor, walls, bed frames and daily tools by spraying, and seal up cracks. For every 100 sq m, use 1 jin of formalin and 150-200 g of dichlorvos in a pot, add 5 times the amount of water, then place it on a stove and heat. After lighting the fire
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Mushroom Pest and Disease Control Methods and Technical Key Points
With the further development of the mushroom industry, standardizing mushroom pest and disease control has become very necessary. The following recommendations on mushroom pest and disease control are hereby proposed: 1. Mushroom pest and disease control must establish the principles of prevention first, integrated control, and scientific use of chemical agents. Specifically, the following should be done: 1. Conscientiously carry out environmental sanitation work in and around the mushroom house. The environmental sanitation of the mushroom house is crucial to the occurrence of pests and diseases. The following must be done: ① The mushroom house and its surroundings must be clean and hygienic, with thorough sterilization and disinfection. Chicken coops and pig pens should be kept away from the mushroom house. ② After the spring mushroom
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What types of common pests and diseases affect mushrooms?
1. Spot type: mainly brown spot disease, where the surface of the fruiting body has white hair-like mycelium along with small brown spots; affected by it, the mushroom caps shrink, and some mushroom caps crack and dry out; there is also a type mainly characterized by rust spots, with rust-colored spots appearing on the mushroom stipes and caps, mainly caused by excessive humidity and poor ventilation in the shed. 2. Deformed type: mainly manifested as slender mushroom stipes and a well-developed, thick and strong root system, with an external form resembling coral in the sea, mainly caused by a lack of oxygen or poor ventilation in the greenhouse. 3. Spindly growth
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How to prevent and control viral diseases in mushrooms? Detailed methods
Once a mushroom viral disease occurs, the harm is great. Not only does the yield of that year decline, but if the mushroom house is not thoroughly disinfected, it will also affect the harvest of the next year. After mushroom mycelium is infected with the virus, it cannot form fruiting bodies, and in severe cases the mycelium rots, causing large mushroom-free areas to appear on the bed. After mushroom buds are infected with the virus, the fruiting bodies develop abnormally; some caps show brown spots and the caps are lopsided; some caps have notches, the growth of the cap and stipe is unbalanced, the cap is extremely small or the stipe is extremely long; or the stipe is curved, with the lower part of the stipe tapered; or the middle of the stipe swells into a stalk-like shape
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Detailed Guide to Identifying and Controlling Common Mushroom Diseases
I. Fungal Diseases 1. Brown rot. Also known as white rot and blister disease. The pathogen spores are brought into the mushroom house through casing soil and spread by air and insect pests. When the air in the mushroom house is not circulating and high temperature and high humidity occur, the disease is severe. A large amount of white mycelium forms on the mushroom bed. After infection, the stipe of the fruiting body swells into a blister-like shape, and in severe cases deformed mushrooms form, turning brown, or white flocculent spherical masses form in which the cap and stipe are indistinguishable. Control method: mainly disinfect the casing soil. Place the casing soil in an empty room, and fumigate at a ratio of 5 ml of formaldehyde plus 3 g
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Mushroom Disease Control Methods and Key Technical Points
In late September, mushrooms begin to fruit successively, which is also the time when diseases in the mushroom house begin to multiply and cause damage. Mushroom walnut-flesh fungus (Diehliomyces microsporus) is one of the more serious diseases in mushroom production. This fungus is also called "false truffle," and its pathogen is Microsporon desmazieri. When the ascocarps cluster together, they appear walnut-flesh or cauliflower-shaped, pale yellow to cream-colored, turning light brown when mature. The surface is covered with a scaly, dandruff-like layer, and the flesh is dense and soft, giving off a fishy odor when crushed; the larger ones can reach over 10 cm. Once the mushroom bed is infected by walnut-flesh fungus, spraying on the bed surface should be stopped immediately
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