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What diseases should be prevented and controlled when growing sunflowers?
What diseases should be prevented and controlled when growing sunflowers? Please give an introduction. Sunflowers need prevention and control of the following diseases: I. Symptom identification 1. Sunflower rust is an important disease of sunflowers, reducing yields by 40-80% in pandemic years. After infection, rust-like spore piles can form on leaves, petioles, stems, flower discs and other parts. When leaves are infected...
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What are the methods for preventing and controlling pests and diseases in yam?
What methods are there for preventing and controlling pests and diseases when growing yam? Please give an introduction to the methods. When growing yam, the following methods can be used to prevent and control pests and diseases: I. Agricultural control 1. Selecting disease-resistant varieties is an effective method for preventing and controlling yam pests and diseases. When cultivating disease-resistant varieties, a rational layout should be used, rotating varieties every 2 to 3 years, and paying attention...
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Identification Methods and Control Measures for Ginseng Diseases
Ginseng damping-off disease 1. Symptoms. Caused by infection with Rhizoctonia solani and Fusarium species. It prevents young seedlings from emerging, or after emergence attacks the stem of the seedling at the boundary between dry and moist soil 3-5 cm below the soil surface. The affected part is light yellowish-brown, gradually turning dark yellowish-brown, forming sunken elongated lesions that penetrate deep into the stem and cause rot; after enlargement the diseased...
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What are the common late-season fruit diseases of walnut trees?
What diseases affect walnut tree fruit in the late season? The following diseases affect walnut tree fruit in the late season: 1. Walnut anthracnose. Disease symptoms: after the fruit is infected, brown to dark brown round or nearly round lesions appear on the rind, with a sunken center and small black dots, sometimes forming concentric rings. When air humidity is high, the lesions bear...
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What are the common pests and diseases in sunflower cultivation?
What are the common pests and diseases of sunflowers? Please give an introduction. Sunflowers have the following pests and diseases: Sclerotinia rot ① Crop rotation; ② Seed treatment: for uncoated seeds, mix with 50% carbendazim wettable powder at 3% of the seed weight; ③ Soil treatment: mix 250 g/mu of 50% procymidone wettable powder with fine sandy soil to make medicated soil, and apply it...
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Eight precautions for the prevention and control of pests and diseases in button mushrooms
Strengthening the comprehensive management of button mushroom cultivation and creating an environment conducive to the growth of button mushrooms while unfavorable to the reproduction of pests and diseases is the key to growing organic button mushrooms. 1. Do a good job of environmental sanitation. Spawn production and operating personnel must establish a normal cleaning and sanitation management system, continuously remove contaminants and disinfect them with chemicals,...
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What are the methods for preventing and controlling pests and diseases in mango trees?
What methods are there for preventing and controlling pests and diseases in mango trees? Please provide an introduction to the methods. The following methods can be referenced for preventing and controlling pests and diseases in mango trees: 1. Agricultural control. Select improved varieties that are resistant or tolerant to pests and diseases according to local conditions. A single variety should be planted in the same plot, avoiding mixed planting of varieties with different maturity periods. In...
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Control Methods for Major Sesame Pests and Diseases
How should the major sesame pests and diseases be controlled? Please give guidance. The major sesame pests and diseases include the following: 1. Sesame hawk moth: before the larvae reach the 3rd instar, when there are an average of 2 larvae per 100 leaves on the plants, pesticide should be applied for control. Commonly used pesticides: 2.5% trichlorfon powder or 5% carbaryl powder sprayed at 1.5-2.5 kg per mu; 90% crystalline trichlorfon or 80%...
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What pests and diseases should be prevented and controlled when growing bitter melon?
What pests and diseases should be prevented and controlled when growing bitter melon? Please provide an introduction to the control methods. The pests and diseases of bitter melon cultivation include the following and their control methods: 1. Powdery mildew. Symptoms of damage: mainly damages leaves. At the early stage of the disease, nearly circular small white powdery spots appear on the front or back of the leaves, mostly on the back of the leaves, and later the spots gradually expand, ...
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Detailed Explanation of Main Diseases of Kudzu Root and Their Control Methods
The dried root of the leguminous plant wild kudzu (Pueraria lobata (Willd.) Ohwi), also known as sweet kudzu, dried kudzu, and powder kudzu. Nature neutral, taste sweet and pungent. It has effects such as relieving muscles and reducing fever, promoting fluid production and quenching thirst, and promoting eruption of rashes. It mainly treats symptoms such as cold and fever, incomplete rash eruption, gastroenteritis, and high blood pressure. Its flowers are neutral in nature and sweet in taste, and have the effect of sobering up and stopping...
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