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Identification and Control Methods of Common Oyster Mushroom Diseases
Why do some oyster mushrooms grow small white lumps in the later stage of growth? This occurs more in black varieties and rarely in grayish-white varieties. The same cultivation method and substrate were used. Why does this happen? How should this contaminant be controlled? Every stage of oyster mushroom production can suffer from contaminant contamination, and it must be controlled promptly. The common contaminants are mainly the following: (1) Bacteria mostly occur on the slant of mother cultures, while the harm to stock cultures and cultivation cultures is relatively mild. Bacterial contamination is characterized by rapid reproduction, generally becoming visible 10 to 24 hours after inoculation.
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Methods and Technical Key Points for Controlling Pests and Diseases of Oyster Mushrooms
In oyster mushroom cultivation, pests and diseases are a stumbling block. Recognizing and promptly controlling them is of great significance for normal production. Once pests and diseases are discovered, if measures are not taken in time, they will seriously affect oyster mushroom yields and sometimes cause total crop failure. Therefore, superior and highly resistant strains should be selected, scientific management should be strengthened, and environmental conditions that favor the growth of the mushroom fungus while disfavoring the reproduction of pests and diseases should be created, so as to prevent trouble before it happens. The following are introductions to the control methods for some common pests and diseases: 1. Diseases. Diseases commonly fall into the following two categories: (1) During the cultivation process,
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What are the control methods for common lily diseases?
Several common diseases of lilies: lily mosaic virus, bulb rot, leaf spot, leaf blight, etc. Mosaic virus is also called lily latent mosaic virus. When the disease breaks out, chlorotic spots or necrotic spots of uneven depth appear on the leaves, the affected plants are stunted, the leaf margins curl, and the leaves become smaller. Sometimes spindle-shaped light brown lesions appear on the petals, the flowers are deformed, and they do not open easily. Control methods: 1. Select virus-free bulbs for propagation; 2. Strengthen the control of aphids and leafhoppers; 3. Promptly pull out and destroy diseased plants. Leaf spot disease: when this disease first appears, the leaves
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What are the control methods for lily wilt disease
Latin scientific name: Fusarium oxysporum f. sp. lili Snyder et Hansen. Crops affected: lily. Symptoms: Also known as stem rot, it is an important disease in lily production. Infected plants initially show slow growth, and the lower leaves turn yellow and lose their luster; afterward the symptoms gradually spread upward, and finally the leaves of the whole plant wilt and droop, turn brown, and die. In addition, Fusarium oxysporum f. sp. lili can also infect the base of the outer scales of the bulb, where brown necrosis or rot appears on the basal plate, causing
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Common pest and disease control methods for lilies, explained in one article
Lilies originated in China. They are distributed in the southeast and southwest, as well as Henan, Hebei, Shaanxi and Gansu, where wild and cultivated plants grow in various places, mainly used as cut flowers and for garden displays as potted ornamentals. The bulbs are used for food and medicine, the fresh flowers contain aromatic oil used as a fragrance, and the fruit is eaten. It is a cold-hardy, autumn-planted scaly bulbous herbaceous flower. There are many cultivated varieties, and besides white, the flowers also come in yellow, red, light red, variegated and other colors. 1. In the middle and late growth stages, the bulb and the root-growing part of the stem are prone to root rot, showing bright dark-brown decay spots; at the base of the plant stem, base rot easily occurs, causing the leaves to droop and turn yellow; on the leaves
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What are the control methods for parasitic diseases of silkworms?
I. Polyvoltine flesh fly maggot disease 1 Symptoms: A black triangular diseased spot appears at the parasitic site on the silkworm, with a pale yellow fly eggshell adhering to it. 2 Control: ① Capture and kill fly pupae. ② Use "Miecanying" (silkworm fly killer) to kill maggots. For body spraying use a 300-fold dilution; for spraying on mulberry leaves to feed silkworms use a 500-fold solution. For 5th instar silkworms, apply once every other day; for the 4th instar, use 1 to 2 times; do not use before the 3rd instar. II. Acariasis (mite disease) 1 Symptoms: Young silkworms die quickly after being affected, most with head and thorax protruding, body color dull and dark; those affected during molting cannot shed their skin and die; affected large silkworms pass string-of-bead feces or irregular feces, with prolapsed anus, small hairy-legged silkworms, and various symptoms such as protruding head and thorax, curved body, and water vomiting appearing simultaneously. 2 Control: Use sulfur fumigation or spray with 300-fold "Miecanying". When disease occurs during the silkworm rearing period, find the source of mites and cut it off. Quickly change the trays, spray the silkworm bodies with "Miecanying" to repel mites. The concentration of "Miecanying" is: 1000-fold for the 1st instar, 500-fold for the 2nd instar, 300-fold for the 3rd to 5th instars, and do not pile up cotton, wheat straw, rice straw, rice grain, etc. in the silkworm rearing room.
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Detailed Explanation of Prevention and Treatment Methods for Several Common Dog Diseases
Currently, dog breeding has become a boom in households. However, losses caused by disease during the breeding process are quite common. The symptoms and prevention and treatment methods of several common dog diseases are introduced as follows: (1) Canine influenza. Sick dogs have a body temperature rising above 41°C, accelerated breathing and pulse, dry nose, difficulty breathing, clear nasal discharge, coughing, rough coat, tendency to lie down, muscle tremors, and poor appetite. Prevention and treatment: (1) Use 0.1g-0.4g of formaldehyde solution or 0.2%-0.6% caustic soda solution to disinfect the kennel and maintain good environmental hygiene.
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What are the prevention and control methods for silkworm bacterial diseases?
Silkworm bacterial diseases generally occur mostly during the summer and autumn rearing seasons. They are caused by bacteria parasitizing silkworms, multiplying in large numbers, and infecting the whole body through the blood circulation, mainly through wounds and food routes. The prevention and control measures are as follows: 1. Strict disinfection. Before, during, and after rearing, use bleaching powder solution containing 1% chlorine to strictly disinfect the rearing room, rearing tools, ancillary facilities, and surrounding areas. 2. Strengthen feeding management. When feeding mulberry leaves and handling silkworms, movements should be gentle and operations should be done carefully. Expand the rearing bed frequently,
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Key Points of Disease Control Techniques During the Garlic Growing Period
1. Garlic rust: In years with abundant rainfall, check the disease centers promptly in early spring and take timely preventive measures. Generally, use 15 percent Fenxiuning wettable powder at 1000 times dilution, or 15 percent Fenxiuning wettable powder at 1500 times dilution plus 70 percent mancozeb wettable powder at 1000 times dilution for the first control in early April, then apply a second control after 10 to 15 days, generally applying 2 to 3 times depending on the severity of the disease. 2. Garlic leaf blight, leaf spot diseases, gray mold, etc.: Use 75 percent chlorothalonil wettable powder at 800 times dilution, or 64 percent
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Why does applying biofertilizer to garlic increase yield?
When growing garlic, yellowing leaf tips and drooping leaves easily occur, weakening the growth vigor, making the leaves thin and the stems slender, and causing a marked drop in yield. If during the growth and development of garlic you pay attention to applying more biofertilizer, using the beneficial microorganisms in the biofertilizer to decompose toxic and harmful substances in the soil and nutrient elements fixed in the soil, and secreting growth hormones to stimulate garlic growth, the garlic will not develop yellowing, will have green stems and leaves, and its yield will increase markedly. The specific method is as follows: during the growth and development of garlic, every 15-20 days at the roots
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