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Grasp and carry out the control of diseases and pests in honeysuckle now
Honeysuckle, formerly known as Japanese honeysuckle, also called silver flower, honeysuckle flower, and twin flower, is a twining vine of the Caprifoliaceae family. The county has developed a honeysuckle base of 60,000 mu. Because the base farmers manage extensively and the supporting techniques have not kept up, especially disease and pest control management, the yield of honeysuckle is low and the quality is poor. According to a survey by the county plant protection station, honeysuckle diseases and pests occur fairly commonly in our county, among which honeysuckle powdery mildew, brown spot, aphids and red spiders are relatively serious in occurrence and harm. At present, it is the best time to control honeysuckle powdery mildew, brown spot, aphids
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Occurrence and Control Methods of Brown Spot Disease and Powdery Mildew in Honeysuckle
Honeysuckle, also known as Erhua or Japanese honeysuckle flower, is a perennial climbing shrub. The dried flower buds of honeysuckle are a widely used antibacterial medicinal material, possessing the effects of clearing heat and detoxifying, promoting meridians and activating collaterals, and reducing inflammation and swelling. With the development and utilization of the medicinal value of honeysuckle, its cultivation has become increasingly widespread. However, the damage caused by brown spot disease and powdery mildew in honeysuckle has also shown an upward trend year by year. The occurrence and control of these 2 diseases are described as follows: Honeysuckle brown spot disease is a leaf disease caused by fungi of the genus Cercospora in the subphylum Deuteromycotina, occurring commonly and causing serious damage
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Licorice Disease Prevention and Control Methods and Key Technical Points
(1) Rust disease: When infected, yellowish-brown scar-like lesions appear on the underside of the leaves. After the epidermis ruptures, brown powder is released; this is the uredinium of the pathogen. From August to September, dark brown telia form, causing the leaves to turn yellow and wither, and in severe cases to fall off. Control methods: Apply more phosphorus and potassium fertilizer to improve the plant's disease resistance. Remove diseased plant debris and burn it in a centralized manner. At the early stage of the disease, spray with 15% triadimefon at 1000 times dilution, or 97% diniconazole at 400 times dilution. (2) Brown spot disease: It damages the leaves, and affected leaves develop round or irregular lesions. The
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What are the control methods for licorice rust disease?
① Pathogen The pathogen of licorice rust (Uromyces glycyrrhizae) belongs to Basidiomycota → Teliomycetes → Uredinales → Pucciniaceae → the genus Uromyces. ② Disease pattern a. Urediniospore stage In the seedling stage of licorice, infected plants show a light brown uredinium at the tip of leaves that have not yet unfolded. As the young leaves flatten and grow, the spore masses appear densely along the leaf tip and the underside of the leaf, and finally the entire underside of the leaf is covered by spore masses, appearing as a sheet of yellow rust color; generally all leaves of the whole plant become diseased, and diseased plants are noticeably dwarfed.
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Identification of Honeysuckle Disease Symptoms and Control Methods
Brown spot disease is a common leaf disease that causes plants to grow weakly. It mostly occurs in the middle and late growth stages, with August and September being the peak period of onset, and it is severe under rainy and humid conditions. In the early stage of onset, small brown spots form on the leaves, then expand into brown round lesions or irregular lesions. Grayish-black mold-like substances grow on the underside of the lesions. When the disease is severe, the leaves fall off, affecting plant growth and flowering. Control method: prune diseased leaves, then spray with 1:1.5:200 Bordeaux mixture, once every 7 to 10 days, for 2 to 3 consecutive times. Powdery mildew occurs under warm and dry
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Honeysuckle cultivation helps farmers increase income and achieve prosperity
Honeysuckle is also known as "double flower"; because it is a climbing woody plant, it is also called honeysuckle vine or mandarin duck vine. The flowers are snow-white when they first open and turn golden yellow after 2-3 days, hence the name honeysuckle. Because its leaves do not wither through winter, and in spring the old leaves slowly fall only as new leaves emerge, it is also called Japanese honeysuckle (Lonicera japonica), a semi-evergreen perennial climbing woody plant. Honeysuckle is one of the 70 precious and commonly used traditional Chinese medicinal materials designated by the State Council. It has wide uses, an extremely high prescription usage rate, a large clinical formula volume, and a very large demand as a raw material for Chinese patent medicines. In the Chinese patent medicines produced year-round by major pharmaceutical enterprises at home and abroad, honeysuckle
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Detailed Explanation of Control Methods for Licorice Leaf Spot Disease
① The pathogen is a type of imperfect fungus (Cercospora astragali), belonging to the subdivision Deuteromycotina → Moniliales → Cercospora fungus. It damages leaves; affected leaves produce circular or irregular lesions, with the center of the lesion grayish-brown and the edges brown, and grayish-black mold-like growth on both the front and back of the lesions. Fruiting bodies grow on both sides of the leaf, but mainly on the upper surface; the stroma consists of only a few brown cells; conidiophores are born in bundles of 6 to 12, pale brown, with the apex lighter in color and narrower, unbranched, having 0 to 5 geniculate nodes, with the apex nearly truncate, spore scars prominent, and 1 to 7 septa; conidia are whip-shaped to obclavate, colorless and transparent, straight to curved, with the base truncate to nearly truncate, the apex slightly blunt, and 3 to 10 septa.
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Control Methods and Technical Key Points for Licorice Brown Spot Disease
Brown spot disease is an infection caused by a type of imperfect fungus (Deuteromycete), mainly damaging the leaves. Its symptoms are: circular or irregular lesions appear on the leaves, the center of the lesion is grayish-brown, the edge is brown, and black mold-like growth occurs on both sides of the lesion. Control methods: spray 1:1:100-1:1:160 Bordeaux mixture or spray 70% thiophanate-methyl wettable powder at 1500x-2000x dilution.
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What are the common diseases in Schisandra chinensis cultivation?
The common diseases in Schisandra chinensis cultivation are root rot, leaf blight, powdery mildew, etc. When using pesticides for disease control, you must select pesticide varieties that are formally registered by the Pesticide Inspection Institute of the Ministry of Agriculture and permitted for use by the state, in order to prevent the adverse effects of pesticide phytotoxicity on the growth of Schisandra chinensis and the residual hazards of highly toxic pesticides. 1. Root rot Symptoms: This disease generally occurs from May to August. At the beginning of the disease, the epidermis at the junction of the root and the ground turns black, and further the cortex rots and falls off, forming a ring shape, the leaves wilt, and the whole plant dies after a few days. Causes: Causes
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What are the common control methods for diseases of Schisandra chinensis?
Schisandra chinensis fruit rot and its control: Small brown or black spots appear on the fruit surface, which later turn black. Control method: use a 50% amobam 500-600 times dilution, spraying once every 10 days, for 3-4 consecutive sprays. Schisandra chinensis root rot and its control: It mostly occurs from early May to early August. After onset, the root and the soil contact area rot, the root bark falls off, and the plant dies within a few days. Control method: drench the roots with 1:1:100 Bordeaux mixture. Schisandra chinensis leaf blight and its control: It mostly occurs
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