Ginger anthracnose
Ginger anthracnose. Infected leaves from the leaf tip or leaf edge began to appear nearly circular or irregular wet chlorosis spots, late linked to each other into irregular large spots, serious can make leaves dry. When wet, black and slightly rough spots grow on the disease spots, that is, conidia of the pathogen. The disease can also harm stems and leaf tips, forming short strips of disease spots on stems and leaf tips, and also growing black small spots. In severe cases, leaves can droop, but they still remain green.
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Several propagation methods of lotus root
-- Lotus seed reproduction. As the lotus seed is covered with a hard shell, the concave end of the shell should be broken, and then soaked in 26-30 ℃ water to promote germination. Wait for the bud to grow, but also soaked in water to prevent dehydration and atrophy, grow to 4 leaves and 1 whip, it can be planted in the field. Because of the slow growth in the initial stage, lotus seeds must be raised in the protected field one month in advance in order to produce lotus roots with commercial value in the same year. -- whole lotus root reproduction. The whole branch of the main lotus root, together with the seed lotus root and the grandson lotus root, is planted according to a certain row spacing, and the top is inserted into the mud to expose the tail tip.
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Anthracnose of leek
Anthracnose is an important disease of leek, which is widely distributed and common. The occurrence is usually very light and has no obvious impact on production, only when there are more Rain Water in a few plots or planting period, the disease is serious, 100% of the plants are infected, and some leaves die because of the disease, which obviously affects the yield and quality. [symptoms] the disease mainly affected leaves and leaf sheaths. At the initial stage, white dots appeared on the surface of leaves or leaf sheaths, and then developed into nearly oval to long fusiform or irregular white necrotic spots. The boundary between the disease and health was obvious, and finally black appeared on the surface of the disease spots.
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