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Symptom Identification and Control Methods of Rapeseed Viral Diseases
[Distribution and Damage] It occurs to varying degrees in all rapeseed-producing areas across the country, and generally the winter rapeseed areas suffer more severe disease than the spring rapeseed areas. This disease is caused by single or mixed infection of viruses such as Turnip mosaic virus (TuMV), Cucumber mosaic virus (CMV), Tobacco mosaic virus (TMV) and Rapeseed mosaic virus (YMV). Generally, yield is reduced by 20%-3...
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What to Do When Brown Rot Occurs in Cherry Trees? Detailed Control Methods
What to do when brown rot occurs in cherry trees? How to control it. Damage symptoms: Cherry brown rot is also called sclerotinia disease, gray rot, etc. It can attack flowers, leaves, shoots and fruit, but fruit suffers the most serious damage. After infecting the flower organs, the stamens and petals first develop brown water-soaked spots, after which the entire flower rapidly rots, with gray...
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What are the control methods for rape black spot disease?
I. Symptoms Rape black spot disease mainly damages leaves, leaf stalks, stems and siliques. When leaves are infected, brown round spots appear initially, slightly concentric-ringed, sometimes with a yellow halo around them, and under high humidity black mold-like growth forms on them. When the leaf stalk and the junction between the leaf stalk and the main stem are infected, elliptical to spindle-shaped ring-patterned spots form, encircling...
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Identification and Control Methods for Common Lotus Root Diseases
What are the common lotus root diseases and how to control them? Asking for advice. Common lotus root diseases are: 1. Lotus root brown spot disease: a common leaf disease of lotus root, producing light brown lesions on the leaves, causing localized drying of the diseased leaves. Control methods: rational close planting to ensure ventilation and light penetration in the lotus field; appropriately increase the application of phosphorus and potassium fertilizers to enhance...
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What are the disease control methods for lotus root cultivation?
How do you control diseases when growing lotus root? What are the techniques? Lotus root is a high-yield, high-efficiency aquatic economic crop and a vegetable variety commonly eaten by the general public. It is widely cultivated in various regions, and with industrial restructuring in various places, its cultivation area has been continuously expanding. In recent years, lotus root diseases have become increasingly serious and have...
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What are the control methods for sunflower downy mildew?
(1) Establish disease-free seed production fields. Strictly prohibit the introduction of seeds from diseased areas, and do everything possible to protect disease-free areas. (2) Practice a 3-5 year rotation with grass-family crops. (3) Choose disease-resistant varieties such as Liaokui No. 2, Fenkuiza No. 2, Kang 3A x Hui 6, CM592, etc. (4) If downy mildew is suspected, test the sunflower's inner pericarp and...
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What are the control methods for sunflower downy mildew?
(1) Establish disease-free seed-production fields. Strictly prohibit the introduction of seed from diseased areas, and do everything possible to protect disease-free areas. (2) Practice a 3-5 year rotation with grass-family crops. (3) Choose disease-resistant varieties such as Liaokui No. 2, Fenkuiza No. 2, Kang 3A x Hui 6, CM592, etc. (4) For suspected downy mildew, test the sunflower's inner pericarp and...
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What are the control methods for sunflower sclerotinia rot?
To control sunflower sclerotinia rot, the first step is to practice crop rotation and remove diseased plant residues. Sunflower should be rotated with grass-family crops such as broomcorn millet, foxtail millet and corn, and continuous cropping with legumes and solanaceous crops should be avoided. The rotation period should be at least 3-5 years. At autumn harvest, remove the stalks as much as possible, dig out the root stubble and plow deeper than 10 cm. The next step is...
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How to prevent and control pests and diseases in Chinese yam? A full breakdown of cultivation methods
How should pest and disease control be carried out after planting Chinese yam? The main pest and disease control methods for Chinese yam are introduced as follows: 1. Agricultural control. 1. Selecting disease-resistant varieties is an effective method for preventing and controlling pests and diseases in Chinese yam. When cultivating disease-resistant varieties, rational arrangement is needed, rotating varieties every 2 to 3 years, and attention should be paid to variety purification and rejuvenation....
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What are the control methods for yam leaf spot?
How should yam leaf spot be controlled? Seeking advice 〔Pathogen scientific name〕Septoria diocoreae J.K. Bai & Lu 〔Host crop〕Yam. 〔Disease diagnosis〕It mainly affects the leaves. When the leaves become diseased, small brown spots first appear on the leaf surface, then gradually expand into angular lesions 6-10 mm in size...
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