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What are the key measures for duck disease prevention and control? A must-read for duck farmers
I. Do a good job of environmental disinfection 1. Ensure the disinfection effect. Currently, the drugs used for environmental disinfection on farms include: aldehydes (formaldehyde, glutaraldehyde), alkalis (such as caustic soda, quicklime), halogens (chlorine preparations include bleaching powder, Xiaoduwang, Mieduwei, etc., and iodine preparations include iodine trioxide), peroxides (such as peracetic acid), and quaternary ammonium salts (such as Baidusha). Before disinfection, physical cleaning and washing must first be done to prevent the presence of organic matter (such as feces, urine, pus and blood, body fluids, etc.), and then the liquid medicine should be sprayed for disinfection.
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Sheep nasal bot fly disease is highly harmful; how should it be prevented and treated?
Sheep nasal bot fly disease is a parasitic disease caused by the bot fly parasitizing the nasal cavity and cranial sinuses of sheep. In recent years, among the flocks raised by farmers in our region, because insufficient attention was paid to the prevention and treatment of bot fly disease, the infection rate of sheep nasal bot fly disease rose sharply, affecting the normal growth and development of sheep and seriously affecting the fattening results of sheep. Through in-depth systematic investigation and study of sheep nasal bot fly disease among farmers and farms, and observation of prevention and treatment, the author achieved relatively good results, now reported as follows: 1. Pathogen
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New Cotton Variety - "Tianning No. 2": High-Yield and Resistant to Pests and Diseases
I. Characteristics and Traits: The growth period is 130 days. The plant is tower-shaped, with a plant height of 100 cm, 6-8 fruiting branch nodes, and light green leaves. The bolls are oval-shaped, with strong and concentrated boll setting, good drought and waterlogging resistance, and few shedding. The boll weight is 5.5 g-6 g, with an average of 30-35 bolls per plant, up to a maximum of 90. Boll opening is smooth and the cotton is pure white, easy to pick. The lint percentage is 38-40%, the seed index is 10 g, and pre-frost cotton accounts for 90%. It is highly resistant to fusarium wilt, with a disease index of 2.3, and highly tolerant to verticillium wilt, with a disease index of 22.9. It is early-maturing without premature senescence. It is adapted to the Yellow-Huai River Basin
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Occurrence and Control Methods of Brown Spot Disease and Powdery Mildew in Honeysuckle
Honeysuckle, also known as Erhua or Japanese honeysuckle flower, is a perennial climbing shrub. The dried flower buds of honeysuckle are a widely used antibacterial medicinal material, possessing the effects of clearing heat and detoxifying, promoting meridians and activating collaterals, and reducing inflammation and swelling. With the development and utilization of the medicinal value of honeysuckle, its cultivation has become increasingly widespread. However, the damage caused by brown spot disease and powdery mildew in honeysuckle has also shown an upward trend year by year. The occurrence and control of these 2 diseases are described as follows: Honeysuckle brown spot disease is a leaf disease caused by fungi of the genus Cercospora in the subphylum Deuteromycotina, occurring commonly and causing serious damage
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Grasp and carry out the control of diseases and pests in honeysuckle now
Honeysuckle, formerly known as Japanese honeysuckle, also called silver flower, honeysuckle flower, and twin 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 the supporting techniques have not kept up, especially disease and pest control management, the yield of honeysuckle is low and the quality is poor. According to a survey by the county plant protection station, honeysuckle diseases and pests occur fairly commonly in our county, among which honeysuckle powdery mildew, brown spot, aphids and red spiders are relatively serious in occurrence and harm. At present, it is the best time to control honeysuckle powdery mildew, brown spot, aphids
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Control Methods and Techniques for Leaf Spot Disease in Japanese Euonymus
Japanese euonymus (Euonymus japonicus) is a commonly used evergreen ornamental small shrub in landscaping, with many advantages, but the occurrence of leaf spot disease causes premature leaf drop, resulting in bare branches and even death, seriously affecting the normal growth and ornamental effect of Japanese euonymus. 1. Symptoms: In the early stage of the disease, small yellow spots appear on the leaves, gradually turning yellow-brown, expanding into circular or irregular spots, with a lesion diameter of 2 mm to 10 mm. In the later stage, the lesions become gray-brown or gray-white with darker edges, and many small black dots form on the lesions. In severe cases, the lesions merge into one piece,
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How to prevent and control leaf spot disease in Japanese euonymus?
Preventing and controlling leaf spot disease in Japanese euonymus: 1. In winter, thoroughly remove diseased fallen leaves, burn them in a centralized manner or bury them deeply, to reduce the source of the disease. 2. Select robust seedlings to create hedges or make euonymus balls. 3. During the disease season, spray 1% Bordeaux mixture, or 50% benomyl wettable powder at 1000 to 1500 times dilution, or 50% carbendazim at 500 times dilution, or 75% chlorothalonil at 500 times dilution, spraying once every 10 to 15 days, for 2 to 3 consecutive times. Alternatively, spraying 200 times diluted non-toxic high-lipid film 4 times is also effective.
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A comprehensive guide to rhododendron leaf spot disease
Round lesions, or irregular polygonal lesions, dark brown, 1mm-5mm in diameter. In the later stage, the central tissue of the lesions turns grayish white. When the disease is severe, the lesions merge with each other, causing the leaves to turn yellow and drop early. Under moist environmental conditions, many small brown mold spots grow on the underside of the leaf spots, namely the conidia and conidiophores of the pathogenic fungus. Pathogen and current disease situation: it is Cercospora rhododendri Fer., Deuteromycotina, Hyphomycetes
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Symptoms and Control Methods of Azalea Gall Disease
Symptoms: It can harm the young branches, shoot tips and leaves of azaleas. After the leaves are affected, the edges or the entire leaf become swollen and thickened, forming tumor-like or hemispherical fleshy galls. After young branches are affected, they also swell and thicken into fleshy galls, affecting new shoot growth. After flowers are affected, a white powdery mold layer, namely the fungal hymenium, grows on the petal surface or in depressions. In the later stage, the galls turn brown, wither and fall off. Pathogen and current disease situation: Pathogen: Exobasidium hemisphaericum Shirai, Basidiomycota, Hymenomycetes, Exobasidiales.
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Identification and Control Methods for Common Rhododendron Diseases
The main diseases of rhododendrons include root rot, brown spot, black spot, leaf blight, and iron-deficiency chlorosis. After a rhododendron suffers from root rot, its growth weakens, the leaves wilt and dry up, and water-soaked brown patches appear on the root surface; in severe cases, soft rot develops, and the roots gradually rot and peel, with the xylem turning black. This disease is most likely to occur under conditions of high temperature and high humidity. The control method is to strictly disinfect the potting soil before repotting, and to keep the soil loose and moist with good permeability, avoiding waterlogging. If an affected plant is found, deal with it promptly.
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