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Detailed Explanation of Common Pests and Diseases of Cucumber and Their Control Methods
Cucumber is widely cultivated throughout China and is now widely grown in temperate and tropical regions. It is one of the main greenhouse products and a common vegetable on the dining table. During cucumber cultivation, pests and diseases mostly occur as mixed infections. When controlling diseases, be sure to pay attention to the compounding of pesticides and the flexible control of dosage at different stages of disease occurrence.
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What are the common avocado diseases? A full analysis of prevention and control methods
Avocado is a deciduous tree distributed across various tropical regions. It contains very rich fats and is a relatively important oil crop, widely used to make butter and soap. In addition to these industrial products, avocado also contains extremely rich nutrients, such as protein and vitamins. It has a series of effects including anti-aging and breast enhancement and beauty, attracting a large number of people to grow it.
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Harmful symptoms and control methods of cucumber leaf blight
Cucumber leaf blight mainly harms the leaves. Symptoms on young leaves are not obvious. On mature leaves, yellowed areas appear on the leaf surface, along with deformed water-soaked chlorotic spots that gradually enlarge into nearly round or polygonal brown spots, 1-2 mm in diameter, surrounded by a chlorotic halo. On the underside of diseased leaves, small sections of clear veins are very likely to appear in the early morning or on cloudy days.
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What to Do When Cucumbers Get Gray Mold? Symptoms, Damage and Control Methods
Cucumber gray mold is a disease that occurs year-round in protected cucumber cultivation, caused by infection with the fungus Botrytis cinerea of the Deuteromycotina (Fungi Imperfecti). Vegetable growers often call it fruit rot disease or moldy rot disease. In recent years its occurrence has been increasing year by year, and because the fruit is often affected it causes rotting.
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What are the symptoms of cucumber powdery mildew? Detailed explanation of control methods
Cucumber powdery mildew is one of the common diseases in cucumber cultivation and occurs all over the country. Because powdery mildew has developed a certain degree of resistance to fungicides in recent years and can occur in all four seasons, control has become somewhat difficult. Therefore, in ordinary years yield loss is about 10%, and in epidemic years yield loss is about 20-40%.
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Peanut Stem Rot: Damage Symptoms and Control Methods Explained
Peanut stem rot, commonly known as "rotten neck disease," is distributed in all peanut-growing regions across the country. It generally occurs in the middle and late stages. After infection, plants quickly wither and die, and the pods often rot or the kernels fail to fill out, causing serious losses. The disease incidence rate in ordinary fields is 20-30%, and in severe cases reaches 60-70%.
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What are the harmful symptoms of peanut brown spot? Detailed control methods
Peanut brown spot is a fungal disease caused by infection with Cercospora arachidicola of the subphylum Deuteromycotina. It harms peanut leaves, initially appearing as small chlorotic spots, which later expand into nearly round or irregular small spots. The lesions are larger and lighter in color than those of black spot disease, appearing dark brown or tea-brown on the upper leaf surface and brown or yellowish-brown on the underside, with a bright yellow halo around the lesions.
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What causes water cracks in apples? Plus prevention and control methods
Causes of water cracks in apples and their prevention and control
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How to prevent and control mango sunburn? A detailed guide to practical methods
How to prevent and control mango sunburn
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How do runt pigs form? Causes and prevention and control methods
Causes of runt pigs and prevention and control methods
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