Grey mold of lily (batryris elliptica cocke)
Commonly known as lily leaf blight. Mainly damage leaves, but also infect stems, flowers, buds and bulbs. The disease spot on the leaf is round or oval, yellowish brown or reddish brown, the center of the spot is light yellow or light brown, and the edge is purplish red or light red. When the weather is wet, the disease part produces a gray mildew layer; when dry, the disease spot becomes thin and brittle, translucent, light gray. After the disease spot expands, the leaves wither and die, buds and flowers suffer, like boiling water scald, brown and rot. Stem damage, resulting in light brown ulcer spots, very easy to wind break. After infection, the young plants often cause the death of the growth point, and sometimes infect the bulb, which can make the bulb rot. Botrytis cinerea of lily mainly passes through the bad environment with sclerotia. Conidia are produced by sclerotia in spring and spread rapidly in the field by means of wind, rain and airflow. It started in early May and flourished from late May to late June. The temperature in this period is high, and if there is a long-term overcast and rain, the disease will accelerate the epidemic. Prolonged rain and thundershowers can promote the epidemic of the disease. The application of immature organic fertilizer, excessive nitrogen fertilizer and low-lying stagnant water are all beneficial to the disease.
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Identification and Control of Lily Grey Mold
Lily, a lily family, is perennial perennial root plants. In recent years, lily planting has been seriously threatened by diseases, mainly lily gray mold (leaf blight), blight, base rot, virus disease, etc. These diseases often occur in combination and aggravate the damage. Lily gray mold has the greatest influence on lily growth and cut flower quality, even on lily bulb breeding. Lily gray mold is a common disease. It mainly damages leaves, but also infects stems and flowers. Infected lily leaves and flower organs, often leaves
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Five methods of cultivating lily bulbs
After sowing, lilies need to be cultivated for several years before commercial bulbs can be obtained. Generally, asexual reproduction or seed propagation is used to obtain the seed ball first, and then the seed ball is planted into the field. Here are five methods of bulb cultivation. 1. The method of bulb cultivation. It is suitable for varieties that produce bulbs, such as lilac varieties. Mature bulbs are harvested in summer. From late September to early October, a sowing ditch with a row spacing of 12 cm 15 cm wide and 4 cm deep is planted in a ditch every 4 cm 6 cm, and the soil is covered with 3 cm thick. Before freezing, the soil is covered with grass and covered with film to survive the winter. It was revealed when the seedlings emerged in the spring of the following year.
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