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Comprehensive Control Methods for Yellowing Garlic Leaf Tips in Autumn
Garlic planted in autumn is prone to leaf tip yellowing, which causes stunted stems and leaves, thin stalks, low yield and poor quality. 1. Causes 1. Low soil fertility and insufficient nutrient supply in the later stage. 2. Too high temperatures in the later stage and insufficient water supply. 3. Continuous cropping year after year and excessive density. 4. Severe damage from leaf spot, anthracnose, aphids, red spiders, etc. 2. Control measures 1. Choose loose sandy loam with relatively high fertility, and before planting apply farmyard manure at 4000 kg per 667 sq m.
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Control Methods and Technical Key Points for the Jujube Mealybug on Jujube Trees
(1) Manual and physical control. Bark scraping: During winter and early spring, scrape off the old coarse bark on the trunk, branches and forks and burn it in a centralized manner; spray the whole tree with 3-5 degrees Baume lime sulfur mixture, or apply a sticky insect glue ring about 1-2 cm wide on the main trunk and branches, to prevent the insects from climbing up the tree and from moving from concentrated overwintering branches to non-concentrated overwintering branches to cause damage, and to trap and kill some of the pests. (2) Chemical control. The application time should be chosen during the peak hatching period of the newly hatched nymphs, generally from late May to early June, early to mid-July, and early September. The selected pesticides include: 25% buprofezin
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Symptoms and Prevention and Control Methods of Rabbit Myxomatosis
Rabbit myxomatosis is a highly contagious and highly lethal infectious disease caused by the myxoma virus. It is characterized by myxomatous swelling under the skin throughout the body, especially on the face and around the natural orifices. The OIE lists it as a Category B disease. 1 Etiology The myxoma virus is a member of the genus Leporipoxvirus in the family Poxviridae. This virus has strong resistance to drying, can survive for 2 weeks in dried myxoma nodules, and can survive for more than 3 months at 8-10°C in a moist environment, 2
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Identification and Control Methods of Slime Mold Diseases in Oyster Mushrooms
Symptoms The slime mold colonies harming oyster mushrooms are white, and during the vegetative growth stage they mostly spread outward in a feather-like pattern, generally difficult to distinguish from oyster mushroom mycelium. In the middle and late stages of oyster mushroom growth, the slime mold develops rapidly. When the mushroom bed has high humidity, the slime mold spreads from the bottom layer of the substrate to the surface layer, beginning to appear on the surface of the mushroom bed as bright orange-yellow gelatinous filaments, which then rapidly produce powdery gelatinous masses, namely the slime mold spores entering the reproductive stage. The gelatinous masses spread rapidly from the stipe to the cap of the oyster mushroom, gradually enveloping the entire fruiting body and causing the fruiting bodies
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What to Do When Oyster Mushroom Pinheads Die? Cause Analysis and Control Methods
In oyster mushroom production, due to unsuitable mushroom house environmental conditions and compost, as well as improper management or severe weather and other reasons, pinheads on the mushroom bed often shrink, turn yellow, and eventually die; sometimes pinheads on the bed surface die in batches, seriously affecting yield and economic benefits. For this, the author conducted extensive observational research and summarized the causes of mushroom death and control methods, presented as follows: 1 Continuous high temperatures In autumn mushroom production in northern regions, temperatures go from high to low, which is suitable for the growth and development of oyster mushroom fruiting bodies
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What are the control methods for bacterial blotch disease in oyster mushrooms?
Rust-colored or dark brown spots appearing on the caps and stipes of oyster mushrooms are called bacterial blotch disease of oyster mushrooms. This disease is a bacterial disease that easily occurs during the fruiting body growth stage of oyster mushrooms. The pathogen causing this disease is a Pseudomonas bacterium that is extremely widely distributed in nature. In the early stage of the disease, the spots are only the size of a needle tip and light in color, generally not affecting commercial value. As the disease worsens, the spots rapidly enlarge and their color continuously deepens, often appearing oval or spindle-shaped, or connecting with each other to form irregular large patches, with rust-yellow discolored areas around the patches. When the mushroom bed is severely
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What are the control methods for round spot disease of Panax notoginseng?
It can damage all parts of the plant. In the early stage of leaf disease, yellow spots appear on the underside of the leaves. In humid weather or during continuous rainy days, they rapidly expand into transparent round spots. When the weather is dry after the disease occurs, the lesions are relatively large, round and brown, with obvious concentric rings. When the stems are affected, the damaged parts are chestnut-colored, and the diseased area has a grayish-white mold layer, which can cause bud rot and stem base rot. Control methods: First, during the epidemic season of round spot disease, open the ventilation doors of the Panax notoginseng garden to increase air flow and reduce humidity inside the garden. Second, adjust the light intensity for Panax notoginseng to avoid excessively strong light, which is conducive to the spread of the disease.
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Detailed Explanation of Prevention and Control Methods and Key Technical Points for Panax notoginseng Blight
Blight, also known as "leaf-drooping rot," begins to occur from April to May, and becomes severe from July to August. After being affected, dark green irregular lesions appear on the leaves or petioles, and the lesion color then deepens. The affected parts become soft, and the leaves look as if they have been scalded with boiling water, appearing semi-transparent, and later dry up or droop and stick to the base of the stems. Prevention and control methods: First, after harvesting the fruit, cut off the aboveground parts, clean the field, and spray the bed surface with 1-2 degrees Baume lime sulfur mixture for disinfection. Second, before the disease occurs, spray 1:1:200 Bordeaux mixture or 50% carbendazim 1000x solution, once every 7 days, for
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Pest Control Methods and Key Technical Points for Panax notoginseng Seedling Fields
When aphids and scale insects cause damage, spray 50% phoxim emulsifiable concentrate at 1000 times dilution or 40% dimethoate emulsion at 1000 times dilution for control. In plots with a large number of white grubs and cutworms, apply 50-75 g of 90% trichlorfon crystals per mu mixed with 20 kg of fine soil and broadcast, or mix with 50 kg of chopped fresh vegetable leaves and broadcast in the evening. For rodents damaging Panax notoginseng gardens, based on their habit of hiding by day and coming out at night, block their burrows during the day and place rat traps, rat cages
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Control Methods for Green Mold Disease in Lingzhi (Reishi Mushroom)
Green mold (Trichoderma viride Pers. ex Fr.) belongs to the class Hyphomycetes, order Moniliales, family Moniliaceae, genus Trichoderma, under the subdivision Deuteromycotina. 1. Morphological characteristics: The hyphae are slender, colorless, septate, and much branched. Conidiophores arise from lateral branches of the hyphae, opposite or alternate, generally with 2-3 branchings; the sterigmata bearing conidia are flask-shaped or cone-shaped. Conidia are mostly spherical, with the spore wall bearing small warty protuberances, green or blue-green. On PDA medium, the colony is initially white and cottony, later becoming dark
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