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How to prevent and control early blight of tomato? Latest technical method tutorial
Tomato early blight occurs in Northeast China, North China, East China, Southwest China and other regions of our country. Its most important feature is that no matter whether the lesions occur on fruit, leaves or main stems, they all have obvious concentric rings, so it is also called ring spot disease. Fruit lesions are often near the fruit stalk,
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The Latest Control Methods for Peanut Southern Blight
Peanut southern blight is one of the major diseases harming peanuts. After the roots, pods, and stem bases of peanuts are infected, they initially appear brown and soft-rotted. White silky mycelium appears at the root-stem area above ground, and white silky threads often first form at the stem base near the ground and on the nearby soil surface. The diseased
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What are the latest control methods for peanut brown spot?
Peanut brown spot is a fungal disease caused by infection with Cercospora arachidicola of the subphylum Deuteromycotina. It damages peanut leaves, initially appearing as small chlorotic spots that later expand into nearly round or irregular small lesions. 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.
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The Latest Control Methods for Peanut Stem Rot
Peanut stem rot, commonly known as "rotten neck disease", is distributed in all peanut-producing areas across the country. It generally occurs in the middle and late stages. After infection, the plant quickly wilts and dies, and the pods often rot or the kernels fail to fill, causing serious losses. The general field incidence rate is 20-30%, and in severe cases it reaches 6
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A Detailed Guide to the Latest Control Methods for Cucumber Powdery Mildew
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. As a result, yields are generally reduced by about 10% in ordinary years, and
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Detailed Explanation of the Latest Control Methods for Cucumber Gray Mold
Cucumber gray mold is a disease that occurs year after year in protected cucumber cultivation. It is caused by infection with the fungus Botrytis cinerea of the Deuteromycotina (Fungi Imperfecti), and vegetable growers often call it fruit rot or moldy rot. In recent years its incidence has become more severe year by year, because the fruit is often affected and causes rot
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A Detailed Guide to the Latest Control Methods for Cucumber Leaf Blight
Cucumber leaf blight mainly damages 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 in the early morning
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A Detailed Guide to the Latest Control Methods for Cucumber Phytophthora Blight
Cucumber phytophthora blight can infect plants from the seedling stage to the mature plant stage. When seedlings are infected, dark green, water-soaked rot first appears on the tender tips, gradually dries up, and forms bare tips. At the mature plant stage, it mainly affects the base of the stem and the nodes of tender stems, starting as dark green water-soaked lesions, which then become soft,
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The Latest Control Methods for White Rust in Water Spinach
Water spinach originated in the tropical regions of China and is widely distributed across Southeast Asia. It is now commonly cultivated throughout South China, Central China, East China and Southwest China. White rust is a common disease of water spinach, widely distributed and relatively serious in harm. It damages leaves, petioles and tender stems, and when it occurs severely
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What are the latest control methods for powdery mildew on bitter gourd?
Powdery mildew on bitter gourd occurs commonly on bitter gourd plants, and different varieties have different resistance to powdery mildew. It mainly occurs on leaves, followed by petioles and vines. The disease is caused by infection by fungi of the genus Sphaerotheca, which are obligate parasites and can only carry out a parasitic life on living hosts. Symptoms
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