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Correct methods for winter topdressing of edible mushrooms
(1) Crush poultry manure, add 1.5 times its volume of water, ferment for 10 days, boil for 10 minutes, then dilute with 3 times the amount of water and spray. (2) Boil 10%-30% human or livestock urine or 1% glucose to sterilize, filter, and pour onto the bed surface. (3) Spray with 1% superphosphate, 0.5% urea, 0.2% ammonium sulfate, or compost extract. (4) Chop carrots and cabbage leaves, add water and boil until soft, filter, then dilute with 4-5 times the amount of water and spray. (5) 500 grams of soybean flour, add 25
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Oyster Mushroom Soft Rot: Control Methods and Key Technical Points
1. Culture material treatment: choose fresh cottonseed hulls or corn cobs as raw materials. Before mixing the material, it should be exposed to the sun for 2-3 days, or ultraviolet light should be used to kill some of the contaminating microorganisms in the culture material. During fermentation, strictly follow the fermentation process to ensure it is thorough, even and complete. Products such as warming fermentation agents, Lixin Junwang or Kemei Wang can be added to improve resistance to contaminating microorganisms. 2. Management during the spawn-running period: when cultivating large bags for fruiting, they should be placed in a cool, ventilated and clean location. Try not to cultivate them inside the mushroom house (shed), to avoid the growth of large amounts of contaminating microorganisms during the mycelial cultivation process, which can lead
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The Harm and Control Methods of Neurospora in Shiitake Mushrooms
In the early growth stage, Neurospora appears fuzzy, white or gray, and in the later growth stage it turns pink or yellow. When large numbers of conidia pile up into clumps, its appearance resembles the fruiting body of Hericium erinaceus (lion's mane mushroom). Neurospora spreads and causes damage mainly through conidia, and it is the most important contaminant fungus that occurs during hot seasons. The hyphae of Neurospora are tough and vigorous, with the characteristic of rapid reproduction. Once it breaks out massively, it is catastrophic, and the consequence is that spawn, culture bags or culture blocks are discarded in batches. To control Neurospora, the first step is to avoid production during hot seasons as much as possible. During the spawn-running stage of shiitake mushrooms, the temperature
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What methods are there to prevent contamination by weed molds in shiitake mushroom cultivation?
To prevent weed mold contamination, cultivation should be arranged at a suitable temperature. The most suitable growth temperature for shiitake mushroom mycelium is 22°C to 25°C, and the most suitable temperature for fruiting body development is 15°C. The optimal mycelial age is about 5 days after the mycelium has fully covered the bottle bottom. The mycelium should grow evenly, be thick and strong, with abundant fluffy hyphae, a pure white color, no primordia formed by twisting, and a fresh fragrance. Spawn carrying weed molds must never be used. The sawdust, wheat bran, and other materials used in the medium must all be fresh and free of mold, and the water content of the culture material should be 50% to 55%. The plastic bags selected should not be uneven in thickness or of poor quality, otherwise
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How to identify contaminant fungi in edible mushroom cultivation? Simple identification methods to share
During the cultivation of edible mushrooms, various harmful organisms and abiotic disturbances often occur. Mushroom growers all consider contaminant fungi to be a major enemy in production, and they must be recognized and prevented in advance, with targeted control, in order to ensure a good harvest. 1. Competitive contaminant fungi are mainly some saprophytic fungi that compete with edible mushrooms for nutrients, water and oxygen in the substrate, especially in the early stages of cultivation management when they are more likely to invade the mushroom blocks, secrete toxins, and inhibit the expansion and spread of the edible mushroom mycelium. 2. Infectious and non-
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What are the control methods for competitive contaminant fungi in edible mushrooms
1. The harmfulness of competitive contaminant fungi in edible mushrooms. In the process of edible mushroom production, due to large-scale cultivation or production at the same site for many years, edible mushroom diseases, insect pests and contaminant fungi frequently occur, spread quickly and cause great losses, becoming a major obstacle to the development of edible mushroom production. Among them, competitive contaminant fungi such as bacteria, Trichoderma, Mucor, Rhizopus, Aspergillus and Neurospora frequently occur, infect the mycelium of edible mushrooms, grow quickly, compete for the nutrients in the substrate, secrete toxins, inhibit the normal growth of the edible mushroom mycelium, and cause spawn
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The Harm and Control Methods of Common Contaminant Fungi in Edible Mushroom Cultivation
I. Neurospora. Also known as Monilia. Its asexual stage belongs to the order Moniliales, family Sphaeriaceae; its sexual stage is an ascomycete. The species harmful to mushrooms are Neurospora crassa and Neurospora sitophila. The hyphae are white, loose, branched and septate. The conidiophores branch in a dichotomous manner. The conidia are produced in chains, spherical to oval, orange-red or pink. The perithecia are clustered or scattered, nearly spherical or oval. The asci are cylindrical, each containing 8 ascospores. Neurospora is widely distributed and can be spread through air, soil, decaying plants, grains, and so on. It occurs severely when the substrate is too wet and
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Detailed Explanation of Shiitake Mushroom Spawn Treatment and Cultivation Methods
Shiitake mother spawn and cultivation spawn should be stored in a cool, clean preservation room or a disinfected refrigerator, and inoculation should be carried out in a disinfected inoculation box or inoculation room. When culturing disease- and pest-free cultivation spawn, the culture site should be a disinfected dedicated shed or room, with the spawn farm isolated from the production field. The cultivation spawn substrate formula ratio is 98% cottonseed hulls, 8% wheat bran, 1% lime, 1% gypsum, 1% phosphate fertilizer, and an appropriate amount of water, with 110-130 jin of auxiliary materials added and mixed evenly. Put the prepared substrate into spawn bags and use atmospheric pressure sterilization at a temperature of 100°C
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What methods are there for identifying the quality of edible mushroom spawn?
Many edible mushroom growers often report that the use of poor-quality spawn leads to cultivation failure, yet they do not know how to tell good spawn from bad. For this reason, the author specifically introduces several simple methods for identifying good and poor edible mushroom spawn. 1. Oyster mushroom. Spawn with white, dense, thick mycelium, appearing cottony-woolly, and showing the phenomenon of climbing the bottle wall is good spawn. If spawn cultivated on sawdust is used, sawdust that has been decomposed takes on a light yellow color, and a small number of primordia appear, it is good spawn. If the mycelium is sparse or forms strands, the cottonseed hull substrate turns dark red, the
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How Do You Assess the Quality of Edible Mushroom Spawn? Practical Methods to Help You Tell Good from Poor
The quality of edible mushroom spawn directly affects the success or failure of production and the level of yield. Therefore, assessing the quality of edible mushroom spawn is crucial for growers. 1. Direct visual observation and assessment. In appearance, if the mycelium is dense white, thick and strong, and elastic, it has strong vitality; if the spawn mycelium has shrunk, is dry and lacking in color, or the mycelium has autolyzed and produced a large amount of reddish-brown liquid, then its vitality has already weakened and it should no longer be used; if wood-block spawn remains hard and solid, it is spawn with strong vitality, but if the wood blocks have become softened and loose, then it has aged and is not
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