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Identification and Control Methods of Diomea cremata
Diomea cremata Butler belongs to the family Noctuidae of the order Lepidoptera. It is one of the looper caterpillars and is one of the important pests damaging edible fungi such as lingzhi (Ganoderma lucidum), oyster mushrooms and wood ear fungus, and it occurs fairly commonly in China. The damage is characterized mainly by feeding on the lingzhi cap and flesh, leaving curved tunnels at the damaged sites. It also leaves notched holes on the fruiting bodies, reducing the commercial value of lingzhi. Morphological characteristics: adult body length 11 mm, wingspan 25-26 mm. The male is dark purplish brown, and the head, thorax
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Symptoms, Identification, and Control Methods of Pinellia ternata Root Rot
It mostly occurs in hot and humid seasons; the underground tubers rot, and the above-ground parts turn yellow, wilt, fall over, and die. Control methods: (1) Pay attention to drainage after rain. (2) In the early stage of the disease, drench the planting holes with 5% lime milk. (3) Control underground pests.
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What are the control methods for Panax notoginseng pests and diseases?
1. Yellow rust: both sides of the leaves are covered with rust powder, and in severe cases the leaves drop off. Once diseased plants are found, dig them out immediately; in the early stage of the disease, spray with 0.2 degrees Baume lime sulfur mixture, once every 7 days, for 2 to 3 times in a row. 2. Anthracnose occurs under rainy and excessively wet conditions. After seedlings or mature plants are infected, brown spots appear on the stems and leaves, later merging into large spots with yellow-green edges, and finally the plants rot and die. Adjust the light transmittance of the shade shed so that the light transmittance is uniform; in the early stage of the disease, spray with 1:1:200 Bordeaux mixture or 65% zineb 300 times dilution. 3
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Identification and Control Methods for Common Diseases and Pests of Panax notoginseng
(1) Damping-off, also known as "rotten foot plague." The pathogen is a type of imperfect fungus among the fungi, harming seeds, seed sprouts and seedlings. Affected seeds rot into a milky white juice-like state, affected seed sprouts turn dark brown and die; affected seedlings show a dark brown ring-shaped depression at the base of the false stem (leaf stalk); seedlings bend over and die. Control methods: ① Before sowing, disinfect the soil with carbendazim or lithospermum liquid. ② Promptly pull out diseased plants when found, spread lime powder around the diseased plants, and spray with 50% thiophanate-methyl 1000-fold solution or 50% methyl
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Control Methods for Common Pests and Diseases of Panax notoginseng
Panax notoginseng belongs to the genus Panax in the family Araliaceae. It is a perennial herbaceous plant and ranks second only to ginseng in the production of Chinese medicinal materials. Common pests and diseases include damping-off, anthracnose, root rot, phytophthora blight, aphids, red spider mites, and scale insects. 1. Damping-off: It occurs mostly in the high-humidity, low-temperature seasons of April to May, damaging the base of seedlings. In severe cases, seedlings die in patches. Infected seeds and seed buds turn blackish-brown and rot. After seedlings are affected, water-soaked yellowish-brown streaks appear at the base of the pseudostem (leaf petiole). As the disease progresses, these turn dark brown, and the diseased area then constricts,
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Occurrence Patterns and Control Methods of Major Tea Plant Pests During the Summer Tea Season
Due to the low-temperature rain and snow weather last winter and this spring, the overwintering generation of tea pests this year had a low population base and a delayed occurrence period, and damage during the spring tea season was relatively light. However, summer weather is more suitable for the occurrence and damage of pests and diseases, so monitoring and control work must be carried out effectively. The occurrence level of the camellia spiny whitefly was lighter than last year, but pest numbers in some tea gardens still exceeded the control threshold. According to a survey by the Songyang County Plant Protection Station: the peak period of overwintering adult camellia spiny whiteflies was April 15, with an average of 17.4 insects per 100 leaves, later and fewer than last year (April 5).
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What are the spring control methods for sheep greedy-mouth disease?
In spring, sheep are prone to greedy-mouth disease. The reason is that after the long winter, the sheep lack nutrients in their bodies and are in poor condition; when they suddenly have young, tender, succulent green grass, it tastes especially sweet and delicious. But in early spring, the forage grass has just sprouted and turned green, and the amount of grass is very small, so they cannot fill their stomachs. The sheep would rather go hungry than eat dry grass and yellow grass anymore. Therefore, greedy-mouth disease occurs. This disease can cause sheep to lose weight and become thin and weak due to long-term hunger, affecting growth and health. Prevention methods: First, avoid green grass early in spring, try to avoid grazing on young tender green grassland, and wait until the green grass grows to about 10 cm
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Pathogen, Symptoms, and Prevention and Control Methods of Louping Ill
This is a viral disease that causes inflammation of the brain, hence it is also called encephalitis. The disease occurs mainly in sheep and can occasionally cause illness in goats. It occurs only in mountainous areas with many ticks. 1. Pathogen The pathogen is a flavivirus. The vector is the tick. Ticks infected with the virus can transmit the disease by biting healthy sheep. It can occasionally be transmitted to humans and shepherd dogs. In humans, it manifests as high fever and acute muscle pain, but it does not cause death. 2. Symptoms Sheep: The incubation period is 1 to 3 weeks. After the virus
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Control methods for diplostomiasis in the big-head schizothoracin (Aspiorhynchus laticeps)
The big-head schizothoracin (Aspiorhynchus laticeps) is a national first-class protected animal. In recent years, as attention to and emphasis on the conservation of this species has grown, its artificial breeding has been placed on the agenda of the **Autonomous Region for the protection of aquatic wildlife. In 2004, during the course of conducting the research project "Artificial Breeding of the Big-head Schizothoracin," the **Fisheries Science Research Institute found that some of the collected and bred broodstock of the big-head schizothoracin became diseased, showing symptoms such as blindness and cataracts of the eyeball, and drug treatment produced little effect, which affected the artificial breeding work of the big-head schizothoracin. To identify
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How to prevent and control garlic viral disease? These methods you must master
Mr. Sun of Xingyang City, Mr. Song of Sheqi County, Mr. Zhao of Biyang County and other readers called the newspaper's science and technology 110 hotline to ask how to prevent and control garlic viral disease. A reporter of this newspaper interviewed relevant experts from the newspaper's expert advisory group on this issue. Experts pointed out that the viral sources of garlic viral disease are mainly garlic mosaic virus and garlic latent virus. The virus mainly attaches to the bulbs to overwinter and becomes the primary infection source. When virus-carrying bulbs are sown, the seedlings can be infected after emergence, and through aphids, sap contact or farm operations in field management to healthy host
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