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A Detailed Guide to the Main Diseases of Yardlong Beans and Their Control Methods
The main diseases of yardlong beans are leaf spot, fusarium wilt, phytophthora blight, root rot and rust; the insect pests include the legume pod borer, cutworm, thrips, leafminer and mites, and integrated pest management techniques should be used for control. The main methods for preventing and controlling diseases and pests are: choose fields that have not grown legume crops for more than two years for planting; clear weeds around the field...
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What causes the bottom leaves of yardlong beans to turn yellow?
Yellowing leaves on yardlong beans are something many vegetable growers who plant yardlong beans encounter often, but there are many different causes of leaf yellowing, and some of these causes, if not treated promptly, can even lead to a total loss of the crop. The following is an introduction to several causes of yellowing leaves in yardlong beans. 1. Symptom presentation. Yellow leaves on yardlong beans are mainly...
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How to identify fusarium wilt in yardlong beans? A detailed explanation of symptom characteristics
Symptoms When a plant is affected, it first starts from the lower leaves. Irregular water-soaked lesions appear on the leaf edges, especially at the leaf tips, after which the leaves turn yellow and die, and the disease gradually spreads to the upper leaves, until finally the whole plant wilts and dies. The cortex at the root-stem junction of diseased plants often splits, and its vascular bundle tissue turns brown; when humidity is high, a pink mold layer appears on the surface of the diseased part...
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Detailed Explanation of Key Points of Formula Fertilization Technology for Yardlong Beans
1. Symptoms mainly affect leaves, stems and vines, and pods. In the early stage of the disease, purple-brown spots appear on both sides of the leaves, and after expanding they become nearly circular dark brown lesions, 1-2 cm in diameter, with indistinct edges; when humid, the lesion surface is densely covered with sooty mold (especially prominent on the underside of the leaves). In severe cases, it causes early defoliation, leaving only the young leaves at the top, ...
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What are the main symptoms of rust disease in yardlong beans?
Yardlong beans can be infected by the pathogen throughout the entire growing period, but resistance weakens and susceptibility increases from the beginning of flowering to the podding stage. The disease mainly attacks the leaves. In the early stage of the disease, scattered chlorotic yellowish-white spots appear on the underside of the leaves, and the spots gradually multiply until they densely cover the entire leaf. On the corresponding reverse side of the lesions, yellowish-brown...
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How to Grow Yardlong Beans? A Complete Guide to Scientific Cultivation Techniques
Extra-Early-Maturing Yardlong Bean - Zaosheng Wang. Zaosheng Wang yardlong bean was bred by Hunan Tiancheng Seed Industry Company. As the name suggests, it is the king among early-maturing yardlong beans. This variety is sown in February and reaches the market in April, becoming a sought-after vegetable on the market at that time, with high prices and good returns; 1 mu can match 3 mu of other vegetables. It has currently been promoted in Sichuan, Shanghai, Hunan, Hubei,...
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What are the precautions for watering a vineyard?
What should be noted when watering a vineyard? Please advise. Water or control water according to the water requirements of grapes at each phenological stage to ensure normal growth and fruiting. 1. Watering ① Watering to promote bud break. From the start of sap flow and bud break in spring to before flowering is 30-40 days. This period coincides with the spring drought season, when grape buds sprout...
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This treasure in the yard has flowers as striking as a big banknote, and it needs tending every time I come home each year.
Every year when I come home I have to fuss over this treasure in the yard, I just can't keep my hands off it! Cymbidium sinense 'Red Sun', also known as Red Bud Qihei, evolved as a mutation from Cymbidium sinense Qihei, one of Guangdong's traditional four great cymbidium varieties. The new buds show variegation first, and the flowers are red with an indistinct green tip.
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What is formula fertilization for yardlong beans? Read this one article to understand
What is formula fertilization for yardlong beans? Please introduce the formula fertilization method for yardlong beans: 1 Nutrient requirements: producing 1000 kg of yardlong beans requires 10.2 kg of pure nitrogen, 4.4 kg of phosphorus pentoxide, and 9.7 kg of potassium oxide. 2 Key fertilization points for a yield of 2000 kg per mu: 2.1 Base fertilizer. Before planting, apply 3000 kg of organic fertilizer per mu, 4...
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How to prune yardlong beans? Analysis of the correct methods and techniques
How should yardlong beans be pruned? Many vegetable growers who ask for guidance grow yardlong beans, but most of them follow their previous experience of growing open-field yardlong beans and rarely prune, which leads to tangled branches, mutual shading, reduced flower bud differentiation on side branches, a low rate of flowering and pod setting, lower yields in the mid-to-late stages, and serious "summer dormancy" during the hot season...
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