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Control Methods for Red Spider Mite Infestation in Perilla
Perilla, alternate names: Guiren, white perilla, red perilla, etc.; it is an annual herbaceous plant of the Lamiaceae family. It has a distinctive aroma. The leaves are mostly wrinkled and curled; when flattened, complete leaves are ovate, 4 to 11 cm long and 2.5 to 9 cm wide, with a long-tapered or acute apex, a rounded or broadly cuneate base, and serrate margins. Both surfaces are purple, or the upper surface is green, and the lower surface has numerous sunken glandular scales. The petiole is 2 to 5 cm long, purple or purple-green, and brittle. The young branches are purple-green, with pith in the center of the cross-section, a fresh fragrance, and a slightly pungent taste. Perilla leaf can disperse exterior cold and has a relatively strong diaphoretic effect. It is used for wind-cold exterior patterns with symptoms such as aversion to cold, fever, and absence of sweating, and is often used together with ginger; if the exterior pattern is accompanied by qi stagnation, it can also be used together with Cyperus rotundus and dried tangerine peel. In moving qi and relieving middle fullness, perilla leaf is used for spleen-stomach qi stagnation, chest oppression, and nausea. It is native to China and is mainly distributed in countries such as India, Myanmar, Japan, Korea, South Korea, Indonesia, and Russia. In China, wild and cultivated varieties are found in North China, Central China, South China, Southwest China, and Taiwan, China.</p><p></p><p>Perilla is highly adaptable and not strict about soil requirements. It grows well in well-drained sandy loam, loam, and clay loam, and when cultivated in fertile soil in front of and behind houses and along ditches and field edges. The previous crop is best as vegetables. It can also be planted under young fruit tree groves. Perilla is commonly used as a traditional Chinese medicine in China, while Japanese people mostly use it in cooking, especially as an indispensable accompaniment when eating sashimi. In a few areas of China, it is also used as a vegetable or made into tea. Perilla leaf is also called Su Ye, and has the functions of releasing the exterior and dispersing cold, moving qi, and harmonizing the stomach. It mainly treats wind-cold common cold, cough, chest and abdominal distention and fullness, nausea and vomiting, and other conditions. The seed is also called Su Zi, and has the functions of relieving cough, calming wheezing, and eliminating phlegm. The whole perilla plant can be distilled into perilla oil, and the oil obtained from the seeds is also called perilla seed oil. Long-term consumption of perilla seed oil has a clear therapeutic effect on coronary heart disease and high blood lipids.</p><p>Control of the pest red spider mite in perilla</p><p>Symptoms of red spider mite damage in perilla: red spider mites harm perilla leaves. It occurs most severely from June to August when the weather is dry, with high temperature and low humidity. Adult red spider mites are tiny, generally red, and sometimes yellow. Red spider mites gather on the back of leaves and pierce and suck the sap. At first, yellow-white small spots appear at the damaged areas, and later larger yellow-brown scorched spots can be seen on the leaf surface. After expansion, the entire leaf turns yellow and loses greenness, and leaf drop is commonly seen.</p><p>Control methods for red spider mite in perilla:</p><p>1. At harvest time, collect fallen leaves in the field and burn them in a concentrated manner; in early spring, clear weeds on field ridges, along ditches, and beside roads.</p><p>2. During the occurrence period, spray early with 40% dimethoate emulsion at 2000 times dilution. However, spraying must be stopped half a month before harvest to ensure that no residual toxin remains on the medicinal material.</p><p>(3) Silver-striped noctuid: from July to September, the larvae harm perilla, and the leaves are bitten into holes or notches. The mature larvae make thin silk cocoons on the plant and pupate. Control method: spray with 90% crystalline trichlorfon at 1000 times dilution.</p>
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Comprehensive Control Methods for White Spot Disease in Mustard
Mustard is an annual or biennial herbaceous plant of the genus Brassica in the family Brassicaceae. It is a famous specialty vegetable of China, originating in China, and is a commonly cultivated vegetable throughout the country, mostly distributed in the provinces south of the Yangtze River. Mustard prefers cool and moist conditions, dislikes heat and drought, and is slightly tolerant of frost.
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Integrated Control Methods and Technical Key Points for Soft Rot in Zhacai (Pickled Mustard Tuber)
Zhacai (pickled mustard tuber), a family of the phylum Angiospermae, class Dicotyledoneae. Mostly herbaceous plants. Zhacai is a type of mustard, generally referring to the leafy mustard group, such as jiutoujie, xuelihong, zhuxuejie, doufupijie, etc. Zhacai is a semi-dry, non-fermented pickled vegetable.
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Symptom Identification and Control Methods of Daylily Anthracnose
Daylily (scientific name: Hemerocallis citrina Baroni), also known as golden needle vegetable and lemon daylily, belongs to the order Liliales, family Liliaceae, a perennial herbaceous plant, with roots nearly fleshy, often spindle-shaped and swollen in the middle and lower parts. Daylily is sweet and cool in nature and flavor, and has the effects of stopping bleeding, reducing inflammation, clearing heat, and removing dampness.
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What Causes Deformed Oyster Mushrooms? Detailed Explanation of Causes and Control Methods
Oyster mushroom (scientific name: Pleurotus ostreatus; also known as the oyster mushroom, brown-blewit oyster mushroom, oyster cap, black peony mushroom, and in Taiwan, China also called Xiuzhen mushroom) is a species in the family Pleurotaceae, order Agaricales, class Basidiomycota. It is a fairly common grey edible mushroom. Traditional Chinese medicine considers the oyster mushroom warm in nature and sweet in taste. It
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Identification of Mushroom Rust Spot Disease Symptoms and Introduction to Control Methods
The mushroom (scientific name: Agaricus campestris) is composed of two parts: the mycelium and the fruiting body. The mycelium is the vegetative organ, and the fruiting body is the reproductive organ. Mushrooms have as many as 36,000 sexes, and mature spores germinate into hyphae. The hyphae are multicellular, have septa, and elongate by apical growth; they are white, slender, cottony, and gradually become filamentous. The hyphae interweave with one another to form a dense mass known as the mycelium. After the mycelium has saprophytically colonized the substrate, the dark brown compost turns light brown. When mature, the fruiting body of the mushroom closely resembles an open small umbrella. It is composed of parts such as the cap, stipe, gills, annulus, and pseudorhiza. Most mushrooms can be used as food and medicine, but poisonous mushrooms can harm people.
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Identification of Clover Powdery Mildew Symptoms and Introduction to Control Methods
Clover is actually quite common in our daily lives, and it has high ornamental value. In China it is generally used for lawn construction in landscaping. Clover has strong vitality and very low soil requirements, so it is one of the more easily surviving plants.
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What are the harms of water hyacinth? A detailed guide to integrated control methods
Scientific name of water hyacinth: Eichhornia crassipes, also called water lettuce. The stems and leaves of water hyacinth hang above the water, and the tillering branches creep along the water surface. The flowers are multi-angled and trumpet-shaped, with bright and beautiful colors. The leaves are emerald green and rather dark. The leaf margins are entire, smooth and textured. The fibrous roots are well developed, tillering and reproduction are fast, and management is extensive
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How to prevent and control northern leaf blight in Sudan grass? These methods are worth mastering
Sudan grass, also known as wild sorghum, is an annual herbaceous plant that can adapt to the same environment as sorghum, only maturing earlier. It has fibrous roots and a well-developed root system, with roots penetrating more than 2 m deep, distributed on average across 75 cm, and about 60-70% of the root system distributed in the plough layer. Sudan grass has good regrowth
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Identification and Control Methods of Loose Smut of Annual Bluegrass
Annual bluegrass (Latin scientific name: Poa annua L.), also known as: small green grass, chickweed grass, cold grass, etc.; an annual or winter annual grass. Culms erect or decumbent, soft in texture, 7-30 cm tall, entirely smooth and hairless. Leaf sheaths slightly compressed, closed below the middle; ligule 1-3 (-5
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