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How to prevent and control leaf mold in cherry tomatoes? Detailed explanation of prevention and control methods
Cherry tomatoes grown in greenhouses are often attacked by leaf mold, and vegetable growers should pay attention to prevention and control. I. Symptoms It mainly damages leaves, and in severe cases also damages stems, flowers and fruits. When leaves are infected, irregular or elliptical light yellow chlorotic spots appear on the leaf surface, and a white mold layer first forms on the diseased part of the leaf underside, later the mold layer becomes grayish brown or...
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Control Methods and Technical Key Points for Early Blight in Cherry Tomatoes
Early blight is a major disease of cherry tomatoes, widely distributed and commonly occurring, mainly in open fields in autumn, and also occurring occasionally in protected cultivation. Generally 30%-50% of plants are diseased, and in severe cases 100% become diseased, with some branches and leaves necrotizing due to the disease, significantly affecting cherry tomato production. This disease mainly damages leaves, and in severe cases also infects...
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Detailed Explanation of Common Pest and Disease Control Methods for Winter Melon
Cultivation Method of Ground-Trailing Winter Melon The cultivation method of ground-trailing winter melon is: the plants grow by trailing on the ground, with relatively wide spacing between plants and rows, generally about 300 plants per mu. Management is relatively extensive, and the stems and vines are basically left to grow freely or the side vines are removed before fruiting, then allowed to grow at will after fruiting. Its advantages are less labor required and relatively low cost. The disadvantages are poor melon shape, and...
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What Is Peach Crown Gall Disease? Symptoms and Control Methods Explained
What is peach crown gall disease? How can peach crown gall disease be controlled effectively? Symptoms of peach crown gall disease: 1. Symptoms Peach crown gall disease is caused by Agrobacterium tumefaciens and is a bacterial disease. After a peach tree is infected, galls of varying sizes, spherical or flattened spherical, form on the roots or trunk. After fusing, they become irregular in shape, then gradually turn brown, with a rough, uneven surface, hardened and woody, forming irregular cavities. After seedlings are infected, their development is hindered, growth is slow, and the plants are stunted; in severe cases, the leaves turn yellow and the plants decline prematurely. When mature fruit trees are infected, the fruit is small and the tree's lifespan is shortened.
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What disease causes black spots on peach fruit? A detailed guide to prevention and control methods
What disease causes large numbers of black spots on peaches? How should it be prevented and controlled? The main symptoms of peach scab are: peach scab mainly damages the fruit, but can also attack leaves and new shoots. When the fruit is affected, dark brown round spots usually appear on the shoulder, gradually expanding to 2-3 mm, then becoming black mole-like spots,...
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How to treat peach tree canker? Detailed prevention and control methods
How should peach tree canker be treated once it occurs? Peach tree canker mainly overwinters as mycelium and pycnidia in the trunk of diseased loquat trees and other diseased plant debris; the mycelium is generally spread by rain and infects the tree through wounds. Under normal management conditions, the tree's load is a key factor affecting the incidence of the disease...
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What to Do When Cherry Tomatoes Grow Too Vigorously? A Detailed Guide to Practical Vigor-Control Methods
What should you do if the cherry tomatoes you are growing now are growing too vigorously? The following methods can be used to control it: To control excessive vigor in cherry tomatoes, practice has proven that layering the vines to control the plant works very well. Layering the vines weakens apical dominance and inhibits rapid vegetative growth; by making use of this effect, plant vigor can be well regulated....
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Pollution-free control methods and techniques for sclerotinia disease of coriander
1. Agricultural control (1) Practice crop rotation or high-temperature control. In diseased fields, practice a 2-3 year rotation with grain crops, or a 1-year rotation with rice or with aquatic vegetables. Where protected cultivation land cannot be rotated, high-temperature control may be adopted, as follows: during the high temperatures of the three summer months, first clean the field, remove diseased leaves and stems and weeds, carry them out of the field and bury them deep or burn them; apply 50-100 kg of lime per 666.7 sq m, add 500 kg of chopped rice straw or wheat straw, spread evenly on the surface, immediately turn into the soil, form high ridges about 30 cm tall, and fill the furrows with water until saturated; to keep water in the furrows at all times, irrigate every day; cover with plastic film, seal the edges tightly with soil, and keep the greenhouse or room closed for 15-20 days. This method can not only kill the lower sclerotia, but also kill pathogens such as Fusarium and root-knot nematodes.
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Main Pests and Diseases of Kidney Beans and Their Control Methods
See symptoms of southern blight of cucurbits: the stem base turns dark brown, densely covered with white filamentous mycelial strands, and later tea-brown round sclerotia form on the mycelial layer. Disease pattern and control methods: refer to southern blight of cucurbits. Distribution and host plants of sclerotinia rot of kidney bean: distributed in all regions. Besides damaging kidney beans, ...
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How to solve red root in kidney beans? Detailed explanation of prevention and control methods
The kidney bean originated in Mexico and the Americas and began spreading around the world from the 17th century. It is also known as the multiflora bean and the large-flowered kidney bean. It has a long history of cultivation, and because of large export volumes, its area has expanded year by year. It is rich in nutrients and high in protein; it is both a vegetable and a food grain, and can also be used for pastries and bean paste, making it an export earner...
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