Green bean rust
Symptoms damage the leaves, stems, and pods, which are dominated by leaves. Leaf disease scattered or clustered many small spots near the circle, the rust-colored small uplift on the back of the diseased leaves, after the epidermis ruptured and erupted, scattered red-brown powder, the pathogen of the summer spores. In the autumn, the dark bulge is mixed with small long spots. After the epidermis splits, a dark brown powder is emitted, which is the pathogenic teliospores. Severe onset, causing early loss of leaves.
The pathogen Uromyces appendiculatus (Pers.) Ung. synonymous U.phaseoli (Pers.) Wint. said the dome unicellular rust, is a basidiomycotina fungus. Is a single host parasite. The spores are clustered and pale yellow. The rust spores clustered on the back of the leaves, cup-shaped, size 2-3mm; coated with white, the edge of the rupture of the eversion, the internal and external walls were fine; the rusty spores are colorless, also have nodules, size 18-3616-24 (μm). The brown cones of the summer spore heap are on both sides of the leaf, 0.2-0.4 mm in diameter, surrounded by a remnant ruptured epidermis; the summer spores are yellowish-brown, oval or elliptic, and have dimpled, size 20-3018-22 (μm), Bud hole 2 is not obvious. The teliospore is dark brown in color, brown in winter cysts, subglobose or broadly elliptic, smooth, 25-2520 in size, and 25(μm) in size; the stem does not fall off, and the spores are long and colorless. Parasitic on lentils, beans, green beans and other plants.
Transmission Pathway and Invasive Condition The southern strain of this species is mainly the summer infertility. It becomes the primary infestation source of the disease and it spreads and spreads throughout the year. In the north, winter sphaeroides are used for wintering on diseased bodies, and the burden is born when the conditions are suitable for the following year. spore. Basidiomycetes invade the host to form a rust cavity stage, and the rust spores that invade the mung bean form a pod-like uredia spore heap, which releases the uredia spores for reinfestation and spreads the disease, resulting in the winter severite spores and winter spores overwintering in late autumn. In northern China, the disease mainly occurs in summer and autumn. In particular, condensation on leaf surfaces and water droplets on leaves are prerequisites for germination and intrusion of rust spores. Summer spore formation and invasive temperature 15-24 °C, 10-30 °C can germinate, of which 16-22 °C optimum. Average daily temperature is 25°C and relative humidity is 85%. The incubation period is about 10 days. Mung beans enter flowering stage and the temperature is above 20°C. High humidity, large temperature difference between day and night, and long duration of condensation are common. Autumn sowing mung beans and continuous cropping land Severe onset. Spring planting in some areas in the south often causes more disease than autumn planting.
Control methods (1) Plant disease-resistant varieties. (2) Advocate the use of compost made from Japanese enzyme bacteria or fully decompose organic fertilizer. (3) Spring sowing should be as soon as possible, if necessary, seedlings can be transplanted to avoid disease. (4) Clean oil garden, strengthen management, and properly close planting. (5) Spray 15% Triadimefon WP 1000-1500 times or 50% Versilight EC 800 times, 50% Sulfur Suspension 300 times, 25% Demulsifier 3000 times, 25 % of the enemy demulsification oil 4000 times liquid plus 15% triadimefon WP 2000 times, 70% mancozeb wettable powder 1000 times plus 15% triadimefon WP 2000 times, 12.5% ​​speed Poly Wettable powder 2000-3000 times, 10% Dodox EC 3000 times, 80% New Wansheng WP 500-600 times, 5% Le Bibung WP 1000-1500 times, 40% DuPont Fuxing EC 9000 times, once every 15 days or so, control 1 or 2 times.
Ginseng can improve the general condition of diabetic patients, but does not change the degree of hyperglycemia. In other words, ginseng can reduce urinary sugar and blood sugar in patients with mild diabetes mellitus by 40-50 mg, which can be maintained for more than two weeks after discontinuation of medication. Although the effect of reducing blood sugar in moderate diabetes mellitus patients is not obvious, most of the general conditions have improved, such as thirst disappeared or alleviated; some patients can reduce insulin consumption after taking ginseng.
Pseudo Ginseng,Pseudo-Ginseng Extractive,Pseudo Ginseng Tea,Pseudo Ginseng Flower
Lixian Spring Pharmaceutical Co., Ltd. , https://www.lxctyy.com