Auricularia Lagerstroemia indica L. Alias ​​Bauhinia skin, purple gold standard, itching trees and so on. Is Lythraceae deciduous tree. Use roots and bark as medicine. With blood circulation, hemostasis, detoxification, swelling effect. Jiangsu, Shandong, Zhejiang, Hubei, Sichuan, Shanghai and Yunnan all have production.
The main symptoms are damage to shoots, leaves, flowers, buds and other parts. At the beginning of the disease, small round white spots began to appear. After the rapid expansion, the leaves were covered with both sides of the leaves, resulting in leaf shrinkage or distortion of new shoots. After the autumn, black spots appeared. The diseased petals are wilting. The pathogen Vncinuliella australiana (Maclp.) Zheng & Chen said that the southern crocodilian silk shell belongs to the fungus Ascomycotina. The mycelium was born on both sides of the leaf, mycelial branches were at right angles or near right angles, and there were septa or none at the branches. Its appressorium, solitary or opposite. Conidiophore sticks, size 64.5-81.46.4-9.2 (μm). The conidia were single-spore on the spore stalks, oval to elliptic, with a size of 31.0—39.712.4—17.4 (μm). Closed shell dark brown, scattered or aggregated, spherical or flat spherical, size 90-125μm. Affiliated silk has two types, long and short, and it is not branched. Short appendages 10-28, size 8.3-22.92.5-5.2 (μm). Three to five egg-shaped ascospores are produced in the shell, with a size of 48.3-58.430.5-40.6 (μm). Ascospore - 7 ascospores, oval to oblong, size 17.8 - 22.910.2 - 15.2 (μm). In addition, in some areas, Erysiphe lagerstromiae said the powdery mildew can cause the disease.
Transmission routes and pathogenic conditions The mycelia were overwintering in the dormant buds of the diseased plants. In late spring, conidia produced by wind and rain spread through the wind and rain, infecting new leaves and shoots, and began to occur in more than 4 months. Autumn entered the peak of onset and produced closed cysts, and after 10 months the disease spread became stagnant. In the rainy season or with high humidity, the plants are too dense, and the air and light transmission are heavy.
Control methods (1) Timely pruning to facilitate ventilation. (2) The winter sprayed wave US 1-3 lime sulfur agent to reduce the source of overwintering bacteria. (3) In the germination and larvae of crape myrtle, 100 times liquid of high fat film or 20% of 30% triazole EC is sprayed.
Fresh Carrot ,temperature: Carrot is a semi-cold crop. Its cold resistance and heat resistance are stronger than radish. The open cultivation in our city can safely winterize. Carrot seeds can germinate at 4~6°C, but the most suitable germination temperature is 20~25°C; optimum temperature for growth: 18~23°C during the day, 15~18°C during the night, growth retardation above 25°C, stagnation under 3°C Grow. Moisture: Carrot roots are well developed, the leaves are 3 to 4 pinnate, leaf area is small, water loss is less, so it is more drought-tolerant.We also supplied Fresh Ginger ,Air Dried Ginger , Fresh Garlic , White Garlic ,red garlic. Sweet Corn , Fresh Taro , Fresh Baby Mandarin, Fresh Red Grape, Fresh Pomelo , Fresh Ya Pear Chaotian Chili, Paprika Powder , Fresh Apple and so on.
Fresh Carrot
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