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What are the common methods for controlling pests and diseases of Eucommia ulmoides
Common pest and disease control for Eucommia ulmoides
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How should cutworms be controlled in Angelica sinensis
Cutworms, also known as "ground silkworms" and "black ground silkworms." They belong to the order Lepidoptera, family Noctuidae. The cutworms affecting Angelica sinensis are mainly the black cutworm and the yellow cutworm, and their damage and control measures are the same. 1. Damage: The larvae damage Angelica sinensis seedlings, hiding by day and emerging at night; at the young instar stage they mostly damage tender leaves and tender growing tips, biting through the root crown and causing missing plants and broken rows. 2. Morphological characteristics: The adult black cutworm has a body length of 16-23 mm and a wingspan of 42-54 mm. The female moth's antennae are filiform, and the male moth's are bipectinate. The forewing is dark brown between the costal margin and the outer transverse line. Between the inner transverse line and the outer transverse line there are distinct kidney-shaped markings, ring-shaped markings and rod-shaped markings. The hindwing is grayish white, with the veins and margins dark brown. The abdomen is gray. The egg is hemispherical, initially milky white, later turning yellow, and grayish purple just before hatching. Mature larva: body length 37-47 mm. The head is yellowish brown, the body is yellowish brown to dark brown, with pale longitudinal bands on the back. The body surface is rough, covered with small round black granules. The anal plate is yellowish brown, with two dark brown longitudinal bands. Pupa: body length 18-24 mm. Reddish brown and glossy.
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Citrus pests can be controlled with Pinellia ternata juice.
Take 1 kg of freshly dug Pinellia ternata (crow-dipper) tubers, chop them, add 3 kg of water and grind into a slurry; for every 1 kg of slurry, add 30-40 kg of water and spray it on citrus trees; or chop 1 kg of Pinellia ternata, add 5 kg of water and boil for 2 hours, then after filtering dilute the stock solution 20-30 times and spray. The control effect against citrus scale insects, red spider mites and aphids reaches over 98%.
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Methods and Technical Key Points for Preventing and Controlling Pests and Diseases of Gastrodia elata
I. Diseases are mainly infections by miscellaneous fungi such as green mold, blue mold, and Mucor. When they occur severely, they can inhibit the growth of Armillaria mellea and can also infect Gastrodia elata tubers, causing rot. Prevention and control methods: (1) Choose well-drained plots for planting; (2) Select high-quality fungal wood; (3) Control temperature and maintain moisture during cultivation; (4) Fill the gaps between fungal wood with humus soil or rice grains. II. Pests mainly include white grubs, mole crickets, golden leaf beetles, termites, rats, and damage by livestock and poultry. Prevention and control methods: (1) Light trapping to kill; (2) Use 90% trichlorfon at 1000 times or 50% phoxim at 1000 times
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What are the methods for controlling diseases and pests of Gastrodia elata?
I. Diseases and their control 1. Causes of the disease. The primary pathogens of Gastrodia elata diseases are mainly other basidiomycetes among the fungi besides Armillaria mellea, which infect the fresh wood and fungal wood symbiotic with Gastrodia elata's Armillaria mellea, competing with Armillaria mellea for nutrients. In severe cases, they not only inhibit the growth of Armillaria mellea and reduce the yield of Gastrodia elata, but also directly infect the tubers of Gastrodia elata, causing soft rot of Gastrodia elata (called tuber soft rot) or rotting death (called tuber rot). This disease mostly attacks and causes damage when the environment is poor, such as high temperature and high humidity, poor aeration and other conditions unfavorable to the growth of Gastrodia elata, causing the skin of the Gastrodia elata tuber to turn yellow and wither,
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What are the methods for controlling pests and diseases of honeysuckle?
The main pests and diseases of honeysuckle are honeysuckle brown spot disease, which harms the leaves and occurs from July to August. After the disease develops, the spots on the leaves are round or polygonal due to the restriction of leaf veins, yellow-brown, and in humid conditions there is a gray mold-like substance on the underside of the leaves. Effective control methods are to promptly remove diseased branches and leaves, strengthen cultivation management, and increase the application of organic fertilizer to enhance disease resistance. In addition, spraying Bordeaux mixture at a ratio of 1:1.5:200 in the early stage of the disease can effectively control brown spot disease. The main insect pests of honeysuckle are aphids and coffee tiger longhorn beetles. To control aphids, 40% dimethoate emulsifiable concentrate 10
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Detailed Explanation of the Key Points of the Gastrodia Scroll-Rod Sowing Technique
The Gastrodia scroll-rod sowing technique is the innovation of Wang Minghui, section chief of the Agriculture Section of the Western Mountainous Area Construction Committee of the People's Government of Chencang District, Baoji City, Shaanxi Province. The Gastrodia scroll-rod sowing technique can greatly increase the germination and survival rate of Gastrodia seeds and greatly increase the yield and quality of Gastrodia, and its economic benefit is more than 2 times that of the traditional Gastrodia sowing method. With the traditional Gastrodia sowing method, after the Gastrodia seeds germinate, more than 60% of the germinated seeds gradually age and starve to death because they cannot establish a parasitic feeding relationship with Armillaria mellea in time. Gastrodia scroll
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Licorice should not be stored for too long; the storage time of medicinal materials must be reasonably controlled
Licorice is generally stored as compressed bales wrapped in burlap, each weighing 50 kg, kept in a dry, ventilated place, with a safe moisture content of 12%-14% for the commodity. There are more than ten kinds of warehouse pests of licorice, including the coffee bean weevil, the brown mulberry borer, and the four-spotted chestnut borer. Fumigation with nitrogen or carbon dioxide for 514 hours can kill all adults and larvae, with no obvious change in the inner quality of licorice. Licorice is prone to mildew. If the air humidity is too high, mold spots or white and green mycelium easily appear on the surface of licorice. The following measures can be taken for prevention and control
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How to effectively control the Schisandra leaf-rolling worm
It occurs from July to August. The larvae are initially white, later turning green. Young larvae bite and feed on the leaf mesophyll; after the 3rd instar they roll leaves and feed, affecting fruit development. Control methods: (1) Before the larvae roll the leaves, spray with 80% trichlorfon at 1000-1500 times dilution. (2) After the leaves are rolled, spray with 40% dimethoate emulsifiable concentrate at 1000-1500 times dilution. (3) Spray with 50% phoxim at 1500 times dilution. (4) Spray with 50% phosphamidon emulsifiable concentrate at 2000 times dilution. (5) Before and after the larvae roll the leaves, they can also be caught by hand.
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