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What are the control methods for bag-cultivated shiitake mushroom rot?
In bag-cultivated shiitake mushrooms (Lentinula edodes), mushroom rot often occurs during fruiting body differentiation and pinning. The main causes are: continuous rainfall during the fruiting period, especially under high-temperature and high-humidity conditions, excessive humidity in the mushroom house, which makes it easy for contaminating microorganisms to invade and cause mushroom rot; some cases are viral diseases that cause mycelial degeneration and fruiting body decay; sometimes due to poor management, excessive watering in autumn, with relative humidity reaching above 95%, combined with poor ventilation under plastic film covering on the mushroom bed and excessive carbon dioxide accumulation, causing mushroom buds to fail to develop normally and become moldy and rotten. The main measures to prevent mushroom rot are: 1. Regulate the
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Symptoms and Control Methods of Root Rot in Schisandra (Schisandra chinensis)
The disease occurs from early May to early August. When it strikes, the junction between the roots and the ground turns black and rots, the root bark peels off, the leaves wither, and the entire plant may even die. It is mostly caused by waterlogging in the field. Control methods: (1) The field plot must not accumulate water; drain promptly when it rains to keep soil moisture at around 40%. (2) During the disease period, drench the roots with a 500-1000 times dilution of 50% carbendazim.
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What are the common control methods for diseases of Schisandra chinensis?
Schisandra chinensis fruit rot and its control: Small brown or black spots appear on the fruit surface, which later turn black. Control method: use a 50% amobam 500-600 times dilution, spraying once every 10 days, for 3-4 consecutive sprays. Schisandra chinensis root rot and its control: It mostly occurs from early May to early August. After onset, the root and the soil contact area rot, the root bark falls off, and the plant dies within a few days. Control method: drench the roots with 1:1:100 Bordeaux mixture. Schisandra chinensis leaf blight and its control: It mostly occurs
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How to control cotton aphids in summer? These methods you need to master
Control of cotton aphids in summer. 1. Rotate the use of pesticides. Rotate the use of conventional field pesticides such as acetamiprid, imidacloprid and chlorpyrifos to reduce the likelihood of aphids developing resistance. Once aphids develop resistance to a certain chemical pesticide, even if you increase the number of applications and raise the pesticide concentration, you will not achieve the desired control effect. 2. Spray the affected parts evenly and thoroughly. Cotton is now in full bloom and the plants are tall, so when spraying you must be careful and thorough, focusing on spraying the undersides of the leaves in the middle and lower parts of the cotton plant, strictly preventing missed spraying and missed coverage, and truly
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Symptoms and Control Methods of Cotton Leaf Blight
Symptoms Also known as cotton Cercospora leaf spot. It mainly damages leaves. Infection usually occurs in the late growth stage of cotton. At first, many dark red small spots appear on the leaves, then expand into nearly round lesions with purplish red, slightly raised edges and brown centers. Under moist conditions, a white mold layer forms, which is the pathogen's conidiophores and conidia. Affected leaves break very easily. Pathogen Mycosphaerella gossypina (Cooke) Earle, called cotton ball fungus, belongs to the Ascomycota fungi. The ascocarp is spherical and black, and the ascospores
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Symptoms and Control Methods of Cotton Boll Red Rot
Symptoms After a cotton boll is infected, amorphous lesions initially appear. In wet weather or during continuous overcast and rainy periods, the disease spreads rapidly, covering the entire boll, and in some cases reaching the cotton fibers, producing a uniform pink or light red mold layer. After rain, the mold tends to stick together, forming pink clumps, causing the diseased boll to fail to crack open, and the cotton fibers to rot into stiff, matted locks. After seeds are infected, the germination rate declines. Pathogen The pathogen is the same as that of cotton seedling red rot. Transmission routes and disease conditions This fungus is a weak parasite and cannot directly infect cotton bolls; it mainly enters through wounds to cause disease
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What are the control methods for cotton red leaf disease?
Cotton red leaf disease is a physiological disorder that has a relatively large impact on cotton yield and quality. This disease usually begins to occur at the early flowering stage. If control is not timely, by the full flowering stage to the boll-setting stage the affected area expands and the condition worsens. When the disease first appears, the leaves take on a dark green color, then gradually thicken and wrinkle, becoming brittle, with yellow spots appearing between the veins while the veins remain green. As the disease worsens, the leaf edges begin to curl downward and turn from yellow to purplish red, withering and dropping off, until the cotton plant is left as bare stalks and dies. The main causes of cotton red leaf disease
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Symptoms and Prevention and Control Methods of Pseudomonas aeruginosa Infection in Chickens
Etiology Pseudomonas aeruginosa belongs to the genus Pseudomonas and is Gram-negative. It is a short, small bacillus with rounded ends, motile, with a single flagellum at one end of the cell. The bacterium measures 1.5-3.0μm×0.5-0.8μm, occurring singly or in pairs, occasionally in short chains. Epidemiology This disease mainly affects chicks, with onset mostly at 1-35 days of age. The morbidity and mortality rates vary, sometimes reaching as high as 50%. There is no obvious seasonality. According to Liu Shanggao et al. (1987), the prevalent Pseudomonas aeruginosa in chickens in China is mainly
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Prevention and Control Methods and Technical Key Points for Common Multiple Diseases in Pigs
The common multiple diseases of pigs mainly include: piglet Escherichia coli disease, transmissible gastroenteritis, epidemic diarrhea, asthma, and piglet hypoglycemia. These five common diseases of pigs seriously affect the normal growth and development of pigs, hinder the development of the pig industry, and often cause massive pig deaths. Therefore, the prevention-oriented policy of prevention and control must be implemented, and careful prevention and treatment must be carried out to take preventive measures, and one must never take it lightly, so as to ensure the smooth development of the pig industry. Piglet Escherichia coli disease Piglet Escherichia coli disease has the following three manifestations: early-onset
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Analysis of the Causes of Tail Biting in Pigs and Control Methods
In large-scale, intensive pig production, it is common to see nursery and finishing pig herds develop the bad habit of biting each other's tails. Tail biting in a herd not only increases feed consumption, affects growth and makes management more difficult, but in severe cases can also lead to injury and bacterial infection in the pigs. So what causes tail biting in pigs? Based on summaries, it is related to the following factors: (1) Management factors: (1) insufficient feeding, not enough feeding spaces, unreasonable trough design, etc., causing pigs to go hungry; (2) poor water quality, insufficient or
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