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Hydrangea Pest and Disease Control Methods and Key Technical Points
When humidity is high, temperatures are high, and ventilation is poor, the plant is prone to aphid damage. Control methods: ventilate promptly. In severe cases, spray with 1500-fold diluted Mieyaling solution. In mild cases, they can be removed by hand with a brush. Spraying with cigarette butt or chili pepper water is also effective. For its control methods, refer to those for roses.
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Detailed Guide to Hydrangea Pest and Disease Control
Hydrangea Pest and Disease Control Hydrangea green petal disease symptoms: plants are stunted and shrunken; inflorescence color fades, petals usually turn pale yellow-green, flowers are small or absent. Transmission route: it is caused by infection with mycoplasma-like organisms (abbreviated MLO). MLO mainly survives and overwinters on various perennial plants such as daisy, oxeye daisy, greater plantain, fleabane, corn marigold, and sow thistle, and is mainly transmitted to cause damage through leafhoppers from these plants. In addition, dodder can also transmit the virus. Control methods 1. Promptly remove and destroy diseased plants to reduce
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How to control leaf spot disease in hydrangea (Impatiens)
[Alias] Impatiens brown spot disease. Hydrangea leaf spot is one of the common diseases on hydrangea. [Distribution] Sichuan, Henan, Guangdong, Taiwan, China, Jilin, Shanghai, Zhejiang, Hunan and other places. [Symptoms] The disease mainly occurs on leaves. Leaf spots initially appear as light yellowish-brown water-soaked small dots, then expand into circular or nearly circular shapes, 2-5 mm in diameter, with a maximum of about 15 mm. Later the center becomes light brown, the edge dark brown, slightly raised, with inconspicuous concentric rings, and black small dots, which are the fungus's pycnidia, are produced on the diseased area. In severely infected
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What are the methods for controlling pests and diseases of jasmine?
Diseases of jasmine during its growth period include: jasmine stem rot and southern blight; pests include: jasmine leaf borer, scale insects, and carmine spider mite. (1) Jasmine stem rot. This disease occurs at the base of the stem. In the early stage, the lesions are brown spots with a water-soaked appearance. The lesions extend longitudinally into streaks. The edges are dark brown, the interior grayish-brown; in the later stage, the lesion tissue rots and splits longitudinally, and black granular bodies appear. This disease occurs year-round during greenhouse maintenance, and is especially severe in early spring. It also occurs in August-September when plants are maintained outdoors. High temperature and humid conditions
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What are the main pests and diseases of the Ferula mushroom? Detailed explanation of control methods
I. Infection routes of pests and diseases 1. Natural spread During the process of spawn production and cultivation of edible fungi, the slightest negligence allows pathogen spores to invade the spawn and culture bags, while pests lurk in waste materials, weeds and dead branches and fallen leaves around the mushroom house, developing, laying eggs and reproducing, seriously harming edible fungus production. 2. Seed-borne infection The mother spawn, stock spawn or cultivation spawn used, without strict inspection, is mixed with contaminating fungi and pests; using such spawn for production leads to complete infection. II. Diseases and their control 1. True
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Methods and Technical Key Points for Pest and Disease Control in Stropharia rugosoannulata Cultivation
Stropharia rugosoannulata has strong resistance and is easy to cultivate. According to cultivation practice and promotion in recent years, no diseases that seriously harm the growth of Stropharia rugosoannulata have occurred. However, before fruiting, some competitor fungi are occasionally seen, such as Coprinus comatus, Pezizales, Psilocybe, and other competitive fungi, among which Coprinus comatus is more common. During the cultivation of Stropharia rugosoannulata, the more common pests include mites, springtails, mushroom gnats, ants, slugs, and so on. The main control measures are described as follows: (1) Coprinus comatus often occurs on beds where mycelial growth is poor or when poor-quality rice straw
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What are the main pest and disease control methods for mushroom sheds?
With the development of the vegetable basket project, the demand for edible fungi has increased accordingly, but pest damage inside mushroom sheds has created major obstacles to the development of edible fungi. To alleviate this contradiction, the main pests in mushroom sheds and their control methods are introduced here. 1. Mushroom flies The larvae, also called fungus maggots, mainly feed on the fruiting bodies, creating tunnels that affect quality, and the wounds they cause are also very easily infected by pathogens, leading to rot. Different methods should be used to control mushroom flies at different stages. If large numbers of fungus maggots occur before mushroom emergence, dichlorvos can be used at 0.90 kg
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Occurrence and Control of Pests and Diseases in Industrialized Mushroom Cultivation
In the late 1990s, China successively introduced industrialized mushroom production lines from Japan and the Taiwan region, which led to rapid advances in mushroom production technology, making it possible to enjoy delicious and nutritious fresh products such as enoki mushrooms (Flammulina filiformis), crab-flavored mushrooms (Hypsizygus marmoreus) and king oyster mushrooms (Pleurotus eryngii) even in the hot summer. In the Shanghai area, there are currently 3 large-scale enoki mushroom enterprises in production and 1 crab-flavored mushroom enterprise, with 3 more added by the end of 2005. It is expected that the daily output of enoki mushrooms will reach 50 t, crab-flavored mushrooms 5 t and king oyster mushrooms 1.5 t, making it the largest industrialized mushroom production base in the country.
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Detailed Explanation of Chemical Control Methods for Oyster Mushroom Pests and Diseases
1. Lime: When fermenting the raw materials, add 4%-5% quicklime powder for high-alkali treatment to improve disease resistance; treat the mushroom house walls and mushroom racks with concentrated limewater; after harvesting mushrooms, spray with the supernatant of limewater, which helps prevent disease and increase yield; when there is localized damage from wood (green) mold, sprinkle lime powder on the contaminated areas to control its spread, etc. 2. Sulfur: Before bringing materials into the mushroom house, fumigate and disinfect with sulfur at multiple points, at a dose of 5 grams per cubic meter. 3. Formaldehyde: When mushroom bags are locally infected with Trichoderma and other contaminating fungi, apply a 2% formaldehyde solution.
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Oyster Mushroom Pest and Disease Control Methods and Key Technical Points
In oyster mushroom cultivation, pests and diseases are major obstacles. Recognizing and promptly controlling them is of great significance to normal production. If pests and diseases are discovered and measures are not taken in time, they can seriously affect oyster mushroom yields, sometimes causing total crop failure. Therefore, one should select fine and highly resistant strains, strengthen scientific management, and create environmental conditions favorable to mushroom growth but unfavorable to pest and disease reproduction, so as to prevent trouble before it occurs. Some common pest and disease control methods are introduced below: 1. Diseases. Diseases commonly fall into the following two categories: (1) During the cultivation process, environmental conditions and man
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