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Common Pests and Diseases of Goji Berry and Their Control Methods
1. Goji berry black fruit disease, also known as anthracnose. It damages fruits and leaves. ① When fruits are affected, circular irregular brown slightly sunken lesions first appear on green fruits, with small black dots arranged in concentric rings, and some lesions show orange-red sticky substance. In the later stage, diseased fruits turn black, become mummified and drop early. ② When leaves are affected, initially yellow small spots appear, later expanding into irregular lesions with reddish-brown edges, and in the later stage small black dots appear on the lesions, some of which rupture and perforate. The disease is severe in July to August when temperature is high and humidity is high. Control methods: ① During winter pruning,
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Pest and Disease Control Techniques for Artificial Pollution-Free Cultivation of Goji Berry
Goji berry (Lycium barbarum) is a perennial shrub, and its pests and diseases are generally mild. In production, the main diseases of goji berry are powdery mildew, rust, and root rot. A 0.2% baking soda solution can effectively control powdery mildew and rust while also avoiding pesticide residues. The main insect pests of goji berry are red spider mites and peach aphids. Fresh red chili peppers or dried red chili peppers 50g added to 50-100kg of water, boiled for about 30 minutes, and the filtrate sprayed on the plants has a very good control effect.
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Biological agents developed for pest and disease control throughout the goji growing season
With the creation of 4 compound pure biological agents formulated by the "Research on Biological Control Technology for Major Goji Pests and Diseases" team at the Institute of Plant Protection of the Ningxia Academy of Agriculture and Forestry Sciences, the pests and diseases constraining the development of Ningxia's goji industry have finally met their greatest "natural enemy." The use of these agents will achieve biological control of pests and diseases throughout the entire goji growing season, not only reducing the number of control applications but also improving goji quality. Goji is a traditional medicinal herb cultivated in Ningxia and is also a leading industry designated by the autonomous region's Party committee and government. However, the occurrence of goji pests and diseases is extremely complex,
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Methods and Technical Key Points for the Prevention and Control of Licorice Pests and Diseases
The main diseases of licorice are rust, powdery mildew and brown spot. Licorice rust mainly damages the leaves and tender stems of the plant; the back of infected leaves produces yellow-brown blister-like lesions on one side, and after the epidermis ruptures, brown powder is released. Prevention and control method: burn the leaves of diseased plants. In the early stage of the disease, treat with a 1000-fold dilution of Fenxiuning; you can also use 0.3 degrees Baume lime sulfur mixture, or a 500-fold dilution of 65% wettable zineb, or a 200-fold dilution of dithianon sodium for spray control, spraying once every 7 to 10 days, and 2 to 3 consecutive sprays are sufficient. Licorice brown spot is also called
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Licorice Pest and Disease Control Methods and Key Technical Points
(1) Rust: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 90% nabam at 400 times dilution in the early stage of the disease. (2) Brown spot: occurs from May to June, damaging leaves. Control methods: ① Gather and burn diseased branches; ② Spray 1:1:100-160 Bordeaux mixture or 70% thiophanate-methyl wettable powder at 1500-2000 times dilution in the early stage of the disease. (3) Powdery mildew: occurs from May to June, damaging leaves. Control method: Spray 0.2-0.3 degrees Baume lime sulfur
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What are the common pests and diseases of licorice (Glycyrrhiza) and their control methods?
(1) Rust: in the early stage of the disease, spray with 25% triadimefon wettable powder at 1000 times dilution or 97% dinocap at 300 times dilution for control, once every 7-10 days, for a total of 2-3 sprays. (2) Brown spot: spray once with 1:1 Bordeaux mixture before the disease occurs; in the early stage of the disease, choose 70% thiophanate-methyl wettable powder at 2000 times dilution or 75% chlorothalonil at 500 times dilution for spray control, once every 7-10 days, for a total of 2 sprays. (3) Aphids: during the occurrence period, spray-kill with 40% dimethoate emulsifiable concentrate at 1500 times dilution.
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Licorice Pest and Disease Control Methods and Key Technical Points
(1) Rust disease: After infection by fungi, yellow-brown blister-like lesions appear on the underside of leaves; when they rupture, brown powder is released, which consists of the pathogen's telial and urediniospore stacks; in August and September, dark brown telial stacks form. Control methods: Gather diseased plants and burn them. In the early stage, spray 0.3-0.4 degrees Baumé lime sulfur mixture or 97% dithianon sodium 400-fold solution. (2) Brown spot disease: After infection by fungi, round and irregular lesions appear on leaves, with a grayish-brown center and brown edges; gray-black mold-like growth occurs on both the front and back of the lesions. Control
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Methods for the prevention and control of Angelica sinensis pests and diseases and key technical points
(1) For stem nematode disease (má kǒu bìng), the peak periods of occurrence are in mid-April, mid-June, early September and early November after transplanting; it damages the roots, and an abundance of soil-dwelling pests favours its occurrence. Control methods: ① Per mu, use 3 kg of 3911 granules mixed evenly with 15 kg of fine soil, or 0.5 kg of 20% methyl isofenphos emulsifiable concentrate mixed with 2.5 kg of water and sprayed onto 15 kg of soil and mixed evenly, then broadcast and turn into the soil; ② Regularly drench the roots with a broad-spectrum, long-lasting insecticide; per mu use 250 g of 40% carbendazim suspension concentrate or 600 g of thiophanate-methyl plus
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Detailed Explanation of Methods and Techniques for Angelica Pest and Disease Control
Root rot: Soak seedlings in 1:1:150 Bordeaux mixture, disinfect and insecticide-treat the soil: burn and fumigate the soil more in seedling beds. Brown spot: Pay attention to field sanitation, promptly remove diseased leaves, and in the middle and late stages spray 1:1:150 Bordeaux mixture once every 7 days. Pests: Mainly green peach aphid, commonly known as "oil worm." It multiplies in large numbers during May, densely gathering on the undersides of leaves of new shoots and tender leaves of angelica to suck sap, causing heart leaves and tender leaves to thicken, curl into a fist-like shape, and the plant to become stunted. Control methods: Clear weeds around the field to reduce opportunities for aphid migration; when aphids occur
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What are the pest and disease control methods for Codonopsis pilosula?
Codonopsis pilosula is a commonly used traditional Chinese medicine. It is widely cultivated in northern China, and its roots are used medicinally. It has functions such as tonifying qi and nourishing blood, harmonizing the spleen and stomach, and promoting fluid production and clearing the lungs. It is mainly used to treat various qi deficiency conditions such as shortness of breath and weakness, thirst due to fluid damage, weakness of the spleen and stomach, loss of appetite, loose and watery stools, cough and asthma due to lung deficiency, weakness after febrile disease, and prolapse of the anus due to qi deficiency. It has a very wide range of uses. The pest and disease control methods are introduced as follows: 1. Root rot often begins to occur during the high-temperature and high-humidity period from May to June in summer. It mainly occurs in Codonopsis pilosula plants that have been growing for more than 2 years. In the early stage of the disease, the lateral roots near the ground
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