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Key Integrated Pest and Disease Control Techniques for Onion Seedlings
I. Selecting Superior Varieties In production, purple-skinned varieties such as Ziyu No. 1, Ziyu No. 2, Zixing, and Shuanghuanhong can be selected. These varieties have the characteristics of strong pungency, high yield, excellent quality, and suitability for export. These varieties generally yield about 5000 kg per mu, and high-yielding plots can reach 7500 kg per mu. II...
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How to prevent and control watermelon seedling diseases? A detailed guide to integrated control techniques
I. Symptoms of the main diseases 1. Damping-off. In the early stage, the root collar of the seedling (the junction of root and stem) develops lesions that look as if scalded by boiling water and become rotten, after which the diseased part turns yellowish-brown, dries out and shrinks; the cotyledons have not yet wilted, but the seedling topples over. Damping-off mostly occurs from the emergence of the cotyledons to the stage when 2 true leaves have flattened out. The disease spreads very quickly; a few days after the appearance of the first diseased plants, seedlings topple over in patches. Under conditions of high temperature and high humidity, the diseased parts of the seedlings and the ground nearby,
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Key Technical Points for Green Prevention and Control of Garlic Pests and Diseases
Green prevention and control of crops means using agricultural control, physical control, biological control, precision pesticide application and other techniques during agricultural production to control pests and diseases, with the aim of reducing pesticide use, lowering pesticide residues in agricultural products, and comprehensively improving the quality and safety level of agricultural products. This year, the garlic planting area in our town...
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Key Cultivation and Control Techniques for Major Watermelon Pests and Diseases
Yu Yongjun, a villager from Group 3 of Yuwanggang Village, Qifang Town, Zaoyang City, Hubei Province, once hailed as the "Watermelon King," has through years of practice worked out a good method for making watermelons sweeter, now offered to fellow growers for reference. 1. About 1 week after fruit set, dig a hole 10 cm from the main root, apply 50 g of cake fertilizer per plant, cover with soil and water. This method can make...
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Kiwifruit sunscald disease must be prevented in advance during the high-temperature season
Kiwifruit is particularly sensitive to wind. In summer, the shoots grow very vigorously and are easily broken off by wind from the base, which not only affects the growth and fruiting of the current year but also affects the yield of the following year. At the same time, wind also easily bruises leaves and fruit, making the trees more susceptible to disease and reducing the marketability of the fruit. Strong winds can also cause leaf drop, affecting flowers...
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How to grow Chinese chives to increase yield
After detailed questioning, it was learned that this grower had not applied manure for the past two years. The roots of Chinese chives grow upward toward the soil surface as the number of years of growing Chinese chives increases. If manure is not applied, the yield will show a declining trend. Experts suggest that potassium dihydrogen phosphate can be used for foliar spraying, and in addition, it is best to apply manure when growing Chinese chives again next year.
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Bananas Grown in Ridge-and-Furrow System Show Significant Yield Increase
Dryland bananas grown by conventional methods tend to have relatively low yields, but using ridge-and-furrow planting can fundamentally overcome the main factors limiting dryland banana yields and achieve a good harvest. Over the past two years, banana growers in some banana-producing areas have adopted this technique and generally achieved significant yield increases. The technique is described below. 1. Site selection...
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How to identify and prevent gray mold in Chinese chives? Growers, please pay attention
Gray mold is the main disease of Chinese chives in protected cultivation, seriously affecting the quality of Chinese chives marketed around the Spring Festival. Around the Spring Festival each year, the price of Chinese chives is generally at its highest of the year, and once the disease occurs it will cause relatively large economic losses to farmers. Therefore, preventing and controlling gray mold well is crucial for the production of Chinese chives in protected cultivation. 1. Onset...
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A Detailed Guide to the Main Diseases of Chinese Bayberry (Yangmei) and Their Control Methods
I. Chinese Bayberry Crown Gall Disease 1. Symptoms: Chinese bayberry crown gall disease is a bacterial disease. It mainly affects the branches and trunks of 2-3 year old fruiting trees, mostly forming tumors on the branches and trunks. The tumors are nearly spherical, vary in size, are very hard and corky, and range in color from brown to dark brown. Generally, the tumors on the branches and trunks begin to enlarge in early April, and from July to August...
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What are the common pests and diseases of Chinese bayberry (Myrica rubra)? These several will affect tree vigor
Pests and diseases such as canker, brown spot, leaf roller, and pine caterpillar have a huge impact on the vigor and yield of Chinese bayberry trees. In production, prevention should be the main approach, with integrated control. In addition to measures such as increasing the application of organic fertilizer and potassium fertilizer and doing a good job of winter orchard cleaning, during the growing season effective measures should be taken promptly according to the occurrence patterns of pests and diseases to...
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