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Causes and Control Methods of Yellow Mushroom Disease in Pleurotus pulmonarius
In recent years, because Pleurotus pulmonarius has good economic returns and can fill the gap in summer edible mushroom products, its production in Jiangshan City has developed rapidly, and by 2004 the total had exceeded 8 million bags. However, in the recent period, some mushroom farms in Jiangshan have experienced mushroom death. Through observation, it was clearly determined that the dead mushrooms were caused by yellow mushroom disease. 1. Symptoms of yellow mushroom disease. Yellow mushroom disease is a bacterial disease caused by infection with Pseudomonas bacteria, which causes the fruiting bodies to discolour, rot and stink, and the incidence rate is generally higher in the first flush. When the disease occurs, a slime-like pathogen appears on the surface of the mushroom bags, part of the mycelium shows yellowing symptoms, and in severe cases the pathogen directly attacks the mushroom bodies, causing the affected mushrooms to develop lesions, turn yellow, and even die. It takes only a few hours from infection of the mushroom body by the pathogen to the appearance of symptoms (dead mushrooms). ① Dry rot type: it can occur from the young mushroom stage to the mature stage; after onset, the cap or stipe shows localized scorched yellow, causing light-coloured mushrooms to become yellow mushrooms, and the mushroom bodies grow slowly, gradually becoming rigid until the whole mushroom body shrinks and dries up, like being dried by lack of water. ② Wet rot type: the affected site or the entire cluster of mushrooms has a sticky, moist feeling; in severe cases, all diseased mushrooms show pale yellow water-soaked rot, with sticky secretions and a foul odour.
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What are the main pest and disease control measures 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 ease this contradiction, the main pests in mushroom sheds and their control methods are introduced below. 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 a rate of 0.90 kg/100 sq m
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How to grow a Boxwood (Buxus sinica) bonsai? Care management and pest and disease control methods
Boxwood (Buxus sinica), also known as littleleaf boxwood, thousand-year dwarf, etc., is an evergreen shrub or small tree of the genus Buxus in the family Buxaceae, native to the middle Yangtze River basin of China and the regions to its south. It likes warm, semi-shaded, humid climates, is drought-tolerant, cold-tolerant and tolerant of pruning, is a shallow-rooted tree species, grows slowly and lives long, and is an excellent tree material for making bonsai. Care management: Boxwood likes moisture and needs frequent watering to prevent leaf drop caused by water loss. From May to August is the vigorous growth period of boxwood, and several applications of thin, fully decomposed cake fertilizer can be made along with watering. Always pay attention to pruning
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What are the most common pests and diseases of Japanese euonymus (Euonymus japonicus)?
1. Box tree pyralid (Glyphodes perspectalis). The larvae spin silk to bind surrounding leaves and tender twigs into temporary nests, then feed inside them; in severe cases they eat all the leaves, causing the seedlings to die. Morphological features: the adult has grayish-white body and wings, with purplish-brown broad bands on the costal, outer and inner margins of the forewing; there are two white spots on the purplish-brown costal band, and the scales are glossy with a purplish-red sheen. The larva has a black head, a yellow-green body, and the dorsal line, subdorsal line and upper spiracular line are dark green to dark greenish-black, while the spiracular line is orange-yellow. Occurrence pattern: in northern regions there are 2 to 3 generations a year, with the larvae in
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Detailed Explanation of Pest and Disease Control Techniques for Euonymus japonicus
Euonymus japonicus is currently an excellent evergreen broadleaf tree species for urban landscaping and ecological environment improvement in northern China, with more than 1 billion plants planted. Its stress resistance and ornamental value are outstanding, and it can maintain glossy green foliage in winter. It is mainly planted as hedges, large color-block topiary and specimen plants. In recent years, because quarantine and treatment of pests and diseases have been neglected in the interregional exchange of nursery stock, the area affected by pests and diseases has expanded year by year, and some pests and diseases have become disasters due to delayed control,
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Control Methods for Boxwood (Buxus sinica var. parvifolia) Wilt Disease
Boxwood wilt disease has been a common disease of boxwood in recent years. It is characterized by rapid onset, fast spread, and a major impact on landscaping effects. Although this disease is stubborn, if correct measures are taken, targeting the pathogen and applying multiple approaches simultaneously, satisfactory control results can still be achieved. Symptoms: Initially, only the upper three leaves of a single branch of an affected boxwood turn green and dry out from water loss, and then the entire branch and three branches of the whole plant show green wilt and water-loss symptoms. In the late stage of the disease, the three leaves turn yellow-white, and severe infection can lead to plant death. Disease occurrence pattern
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What are the new perspectives on disease prevention in large-scale rabbit farms? Worth reading
Play down treatment and optimize the rabbit herd. Traditional rabbit farming emphasizes treatment over prevention, often turning a rabbit farm into a sanatorium for sick rabbits. To change this situation, some experts have proposed the "five no-treatment" rule for sick rabbits: do not treat rabbits that cannot be cured, do not treat rabbits whose treatment cost is high, do not treat rabbits whose treatment is time-consuming and labor-intensive, do not treat rabbits whose economic value after recovery is not high, and do not treat rabbits that are highly contagious and harmful. Practice has proved that after rabbit farms implemented this system, the health status of the rabbit herd improved markedly, virulent infectious diseases were effectively controlled, and medical costs
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In early winter, farmers must guard against swine choking disease
Pigs of different ages, sexes and breeds can all be infected. Although the disease can occur in all four seasons, it is more common in the early winter when the climate is changeable, and it often occurs as a mixed infection or secondary infection with swine fever virus and Mycoplasma hyopneumoniae. The most acute cases can die within a few hours, before there is time for treatment. In acute cases, the main symptoms are septicemia and acute pleuropneumonia. Body temperature rises to 41°C, the pig is listless, appetite is completely lost, coughing and wheezing occur, breathing is difficult with a sitting-dog posture, the nostrils discharge a serous secretion, and the conjunctiva has a purulent secretion. First constipation, then diarrhea. In the later stage
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There are actually so many causes of leg disease in chickens
1. Deficiency of vitamins or trace elements (1) When vitamin B1 is deficient, the sick chicken has weak legs, cannot stand, lies prone, and holds its head tilted upward in a star-gazing posture. (2) When vitamin B2 is deficient, the sick chicken has poor tibial development, swollen joints, curled claws, and hocks resting on the ground. Some have legs splayed apart, or one leg forward and one leg backward, similar to the symptoms of Marek's disease. (3) When calcium, phosphorus, and vitamin D3 are deficient or the calcium-to-phosphorus ratio is imbalanced, cartilage and osteoporosis occur, with thin and hollow bone walls and a honeycomb-like structure inside the bone, and the keel bone bends
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How to prevent and treat chicken white crown disease? A detailed explanation of comprehensive prevention and treatment methods
1. Clinical symptoms: Affected growing chickens show a slight decrease in feed intake, bloody mucus dripping from the beak, slow weight gain, and diarrhea; it occurs mostly between 60-100 days of age, with a mortality rate of about 0.2%. Laying hens mainly show decreased feed intake, pale combs, a gradual decline in egg production rate, thinner eggshells, and an increase in misshapen eggs. 2. Treatment: Continuous use of Bai Guan Ling or Bai Guan Jing for 5-7 days can achieve significant results. Growing chickens show a clear increase in feed intake, stop dying within 3-5 days, and gain weight. Laying hens generally begin to improve noticeably within 5-6 days, and the comb gradually turns
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