Anthracnose of lily (colletatrichuan liliaecearwn ferr.
It mainly harms bulbs and also infects leaves and flowers. After the bulb was infected, irregular and light brown spots appeared at the initial stage, then light dark brown, slightly sunken, and finally the disease spot was almost black, and the tissue contracted and dried. The outer bulb suffered the most and gradually extended to the inner layer. The leaves were damaged, resulting in oval, yellowish disease spots, black-brown edges, and slightly sunken.
Colletotrichum gloeosporioides overwintered in the affected area with hyphae and produced conidia the following year, which were spread by wind and rain. The land with heavy soil and high water content; the land with many lily mites; the land with many diseased bodies and diseased bodies planted in successive years is more serious.
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Prevention and control of anthracnose of lily
Lily anthracnose harms the leaves, stems and flowers of the plant, causing leaves to fall early, seriously affecting the growth and development of the plant and reducing its ornamental value. Symptoms: in the early stage of the disease, there is an oval spot on the susceptible leaf, the center of the spot is light yellow, the edge is purplish brown or dark brown, and the center of the spot is slightly sunken. The petals are light brown and thin. The diseased pedicel turned black. Susceptible bulbs generally occur on the outer scales and sometimes on the inner scales. Light brown and irregular spots appeared on the scales at the initial stage of the disease, and then the disease spots.
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Lily harvest and seed retention
1. Timely harvest (1) vegetable edible lily can harvest the Summer Solstice before Lesser Heat, the leaves of the lower part of the lily turn yellow, the bulb hypertrophy approaches the maximum value, and the sugar content of the scale reaches the highest value. In order to strive for the high price, "green lily" can be harvested as early as late June to late June to early July for vegetable use. For edible lily balls, because of its high water content and monosaccharide content, it is not suitable for seed and storage; used for processing dried lilies, the rate of finished products is not high. (2) the leaves of lily 2ripple 3 changed before and after Greater Heat was harvested in Yihuang, a medicinal and processing lily.
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