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Intercropping soybeans with yew can increase the survival rate
Recently, 2.46 million rooted cuttings of Maire yew (Taxus media) cultivated at a yew nursery in Youxian County, Zhuzhou, Hunan, have been growing rapidly in Tongshan Village, Yajiangqiao Town in that county, and passed expert inspection at the end of August. The nursery's new seedling-raising method of "intercropping with soybeans" has raised the survival rate of yew seedlings to more than 95%. It is reported that the successful introduction and propagation of Maire yew not only helps protect the precious wild Chinese yew (Taxus wallichiana var. mairei) resources, but also opens up broad prospects for developing this "golden plant." At present, the nursery is engaged in forestry
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How to prevent and control hollow-heart leaf shrinkage disease in hot peppers? Growers should take preventive measures early
Hollow-heart leaf shrinkage in hot peppers may be caused by a viral disease. After pepper plants are infected by a virus, a variety of symptoms can appear, generally including mosaic, fern leaf, vein clearing, dwarfing, yellowing, necrosis, and top bud blight, among which the one that can cause hollow-heart leaf shrinkage in hot peppers is fern leaf virus disease. After the disease occurs, it can be prevented and controlled by the following methods: 1. 20% Virus A wettable powder at 500 times dilution; 2. Bingdujing or Bingduling at 500 times dilution; 3. 1.5% Zhibingling emulsifiable concentrate
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Detailed Guide to Controlling Several Major Diseases of Alliums
The main diseases of alliums include downy mildew, rust, and purple blotch. In recent years, the occurrence and damage of these diseases have tended to worsen in various regions, and this is especially pronounced under protected cultivation, greatly affecting the yield and quality of alliums. Below is an introduction to the main symptoms, disease conditions, and control methods of these 3 diseases. 1. Downy mildew (1) Main symptoms. Downy mildew is an important disease of Welsh onion and bulb onion. In addition to damaging Welsh onion and bulb onion, it also damages garlic, Chinese chives, and others. Downy mildew mainly infects leaves and flower stalks,
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How to prevent and control pests and diseases in mushroom sheds? These measures must be mastered
With the development of the vegetable basket project, the demand for edible fungi has increased accordingly, but the harm caused by pests in mushroom sheds has created great obstacles to the development of edible fungi. To alleviate this contradiction, here is an introduction to the main pests in mushroom sheds and their control methods. 1. Mushroom flies: The larvae, also known as fungus maggots, mainly feed on the fruiting bodies, creating tunnels that affect quality, and the wounds they cause are also very easily infected by pathogenic bacteria, leading to rot. Different methods should be used to control mushroom flies at different stages. If a large number of fungus maggots appear before mushroom emergence, dichlorvos can be used at 0.90 kg/
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Yellow Peach Disease Occurrence Patterns and Control Methods
1. Peach leaf curl: The occurrence and damage of this disease are closely related to the climate in early spring. When peach buds begin to swell, if the temperature is low (10-16°C), lasts for a long time, and humidity is high, the disease occurs severely. When the temperature is above 21°C, the disease basically stops developing. 2. Peach bacterial shot hole: The pathogen of this disease overwinters in the diseased tissues of branches. After the beginning of spring, as the temperature rises, the bacteria in the diseased tissues begin to become active. After the peach tree blooms, the epidermis of the lesions ruptures, and the lesions overflow from the diseased tissues. The bacterial cells spread through wind, rain, and insects.
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What are the control methods for arrowhead leaf spot disease?
1. Symptoms This disease mainly damages leaves and leaf stalks. The leaf spots are yellowish-brown to brown, polygonal, elliptical or irregular in shape, slightly zonate, surrounded by a yellow-green or green-brown halo; the spots sometimes merge with one another into large lesions, and in severe cases the leaves turn yellow and wither. On leaf stalks, the disease often produces short, streak-like brown spots, and under high humidity a gray mold grows on the surface of the spots. 2. Transmission route and disease pattern This disease is caused by infection by the fungus Cercospora sagittariae of the subphylum Deuteromycotina. The pathogen mainly overwinters as mycelium and conidiomata on diseased plant residues
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Common diseases of the tea tree mushroom and their control methods
The tea tree mushroom is a rare mushroom variety that has become very popular in domestic and international markets in recent years, but because pest and disease problems occur rather frequently, growers often fail to accurately identify the symptoms and pathogens and blindly apply chemical pesticides, which damages the mushrooms and leads to poor cultivation returns. The symptoms, pathogens and control measures of common infectious diseases are described below: 1. Brown rot. Affected fruiting bodies stop growing, and the caps and stipes rot and give off a foul odor. The pathogen is Mycogone perniciosa, which causes disease mainly through contaminated water or through contact with the hands, tools and other items that have touched diseased mushrooms.
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Occurrence Patterns and Control Methods of Jujube Fruit Shrink Disease
I. Symptoms and Damage Jujube fruit shrink disease, also known as jujube fruit wilt disease, jujube fog wilt disease, etc., is one of the major diseases in all major jujube-growing regions of China. In jujube fruits affected by fruit shrink disease, yellow-brown irregular discolored spots first appear on the fruit shoulder or body, then the fruit skin becomes water-soaked and earthy yellow with indistinct edges, and later the fruit skin turns dark red, shrinks, and loses its luster. In the diseased area of the flesh, brown spots and earthy yellow softness appear from the outside inward. Diseased fruits taste bitter. The fruit stalk turns brown or dark brown. The entire diseased fruit is shrunken and small, and falls off before maturity.
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Symptom Identification and Control Methods of Rust Disease in Codonopsis pilosula
It damages the leaves. The diseased area on the underside of the leaf is slightly raised, forming the uredinium, which later ruptures and releases orange-yellow urediniospores. The disease is most severe from June to July. Control methods: (1) Clear away withered branches and fallen leaves in winter. (2) During the disease period, spray with a 200-fold dilution of 50% dinitro compound or a 400-fold dilution of 97% sodium dithiocarbamate, once every 7 days, for 2 to 3 consecutive applications.
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Symptom Identification and Control Methods for Peach Fungal Shot Hole Disease
[Symptoms] When leaves are infected, circular or nearly circular lesions initially appear, with purple edges and slight concentric rings, measuring 1-4 mm in size; later, grayish-brown mold-like growth develops on the lesions, the center dries up and falls out, forming shot holes with neat edges, and when there are many holes, the leaves drop off. When new shoots and fruit are infected, the symptoms are similar to those on leaves. [Disease Development Pattern] [Regional Damage Severity] [Integrated Control] (1) Eliminate the source of inoculum. Promptly prune diseased branches, thoroughly remove diseased leaves, and burn or bury them deeply. Before peach trees bud, spray
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