In recent years, the planting area of ​​Pleurotus ostreatus has been increasing. However, because of the poor management of cultivation households and the weak concept of disease prevention, the incidence of Pleurotus ostreatus mushroom disease has been increasing year by year. Some mushroom sheds produce mushroom after a tidal mushroom, and some of the mushrooms that come out do not grow and turn yellow, and then shrink and die. As a result, the quality of oyster mushrooms is reduced and the yield is difficult to increase. To this end, the author studied the causes of the disease and comprehensive prevention techniques. The following are reported: 1. The symptoms of the disease. Mushroom disease mostly occurs from the young mushroom mushroom cover or the mushroom mushroom handle and the mushroom cap joint. After the onset of the disease, the young mushroom mushroom cover or the small mushroom mushroom cover recess appears yellowish patches, and the young mushroom mushroom body is sticky and stops growing. Death, mushroom body slow growth, loss of elasticity, a little touch will be broken, then the mushroom body sticky atrophy, emit a rancid odor, the rapid spread of the disease, will lead to sticky material and stop mushrooming. 2. The cause of the disease. Pleurotus ostreatus pathogen is Pseudomonas. 1 The fungus is suitable for the growth of the bacteria in the environment where the environment is humid and organic matter is abundant, in the environment of high temperature, high humidity and poor ventilation. 2 The environment of the old cultivation site has deteriorated and disinfection has not been thorough. 3 In the shed, waste culture materials, miscellaneous mushrooms, and mushroom stalks are everywhere, and the filth has caused the bacteria to inhabit and reproduce. 4 Now the cultivation of oyster mushrooms is mainly based on raw materials or fermentation materials, and the cultivation materials themselves carry bacteria and cause the disease. 5 The use of water or earth-covered material carries bacteria. The poor resistance of the 6 strains or the poor quality of the strains, as well as the poor management of the cultivated households, led to slimmer mycelium in the cultivation bags, reduced resistance, and eventually led to the onset of infectious bacteria. 3. Preventive measures. 1 Select strains that are adapted to the local environment and have strong disease resistance, such as Heiping Wang, Huiping Disease No. 2 and P89, which are generally not susceptible to disease or lighter disease. The same site should not be planted with the same strain for successive years, and it is advisable to replace the variety with 2 to 3 years. 2 to use non-bacterial contamination. Mycelium thick white, stout, age-appropriate species. 3 Select high-quality raw and auxiliary materials that are free from mold, worms, and pollution. Before the culture materials are used, they must be exposed to sunlight. Add bactericidal drugs such as Keshiwang or carbendazim with a dry weight of 0.1%. 4 The old site should not be used year after year. If it is used, it must be sterilized and pesticidal treatment one month before the cultivation bag enters the shed. The fungicide can be used 500 times of carbendazim, benzoic acid 500 times, etc., and 200 times of bleaching powder can be used for killing bacteria. Liquid, agricultural streptomycin 500 times, Wan Xiaoling 2000 times and so on, the insecticidal 500 times liquid of dichlorvos and 1000 times of high efficiency cypermethrin can be sprayed on the ground, walls, and shed outside the shed, once a week. 2 to 3 days before entering the shed, then fumigated with sulphur for 24 hours. 5 Strengthen the cultivation period of the cultivation bag to improve the ability of the mycelium to resist disease and resist miscellaneous diseases. During the fruiting period, it is necessary to control the temperature and humidity in the shed. Excessive temperatures are unfavorable to the growth of general wide- and low-temperature strains. Instead, they provide a suitable temperature environment for all kinds of bacteria and bacteria; The growth is favorable and it is also suitable for the growth of various bacteria. 6 The mushroom shed should be built in a well-ventilated place with convenient drainage. The ventilation in the shed should be smooth. The setting of the ventilation openings should be suitable for the flow of wind at each material surface. There should be no ventilation dead angle, according to temperature, weather, and wind speed. Factors such as timely adjustment of ventilation time. 7 When using cover soil cultivation, the earth-covered material shall be sterilized and killed. 8 Do a good job of environmental sanitation in the shed. After harvesting mushrooms, remove the broken mushrooms in time to keep the floor clean, and regularly disinfect the lime powder to disinfect the environment. 4. Treatment after onset. 1 Once the disease occurs, remove the mushrooms immediately, clean the surface of the material, stop spraying water, and increase ventilation. 2 Spray 1% bleaching solution on the aisles, walls, and sheds around the shed, and apply carbendazim and agricultural streptomycin at a dilution of 1:500 to spray the surface of the material, 1 to 2 times a day, and spray for 4 days. Control the spread of the disease. Other drugs such as Huang Mouqing, Wan Xiao Ling, Huang Banxiao, bacteria killing, pathogenic bacteria, etc. can be used alternately according to the standard dosage for prevention and treatment.
Other
Agricultural products
Agricultural products" means agricultural,
horticultural, viticultural, and dairy products, livestock and the products
thereof, the products of poultry and bee raising, the edible products of
forestry, and any and all products raised or produced on farms and processed or
manufactured products
An
agricultural product is a product you get when you cultivate plants or animals
to sustain or enhance human life. Food is the most widely produced agricultural
product, and, in fact, the global per-person food supply (as measured in
calories per person) has risen more than 20 percent in the past 50 years.
But
people also use a vast array of agricultural products every day for other uses,
ranging from the clothes we wear to the paper we write on.
1, [agricultural products]: in the production of agricultural
items such as rice, wheat, sorghum, cotton, tobacco, sugar cane and so on.
3, World Trade Organization (WTO) agricultural
product categories will be defined as "including live animals and animal
products, vegetable products, fats and decomposition products, food and
beverages." Definition of this concept is relatively broad. "PRC
Agricultural Product Quality Safety" agricultural products defined as
"animals, plants, microorganisms and their products directly processed."
Since agricultural products are the main source of food, but also an important
source of industrial raw materials, agricultural products into edible
agricultural products and non-food agricultural products
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2, according to Agricultural Product Quality Safety provisions of Article II of
agricultural products is the primary products from agriculture, that is
obtained in the agricultural activities of plants, animals, microorganisms and
their products.