What are the diseases in the period of cultivation and management of green bamboo? The symptom of mosaic disease of green bamboo and the effect of ecology on green bamboo

During the period of cultivation and management of green bamboo, bamboo blind stink bug, long horned stink bug, bamboo leaf roll worm, bamboo leaf flat aphid, bamboo stem flat aphid, golden needle worm and Taiwan elephant nose worm are the main pests, and the diseases are mosaic disease, bacterial wilt, rust, coal disease and so on. among them, bamboo mosaic disease is the most common and serious, and some bamboo shoot farmers even regard mosaic virus disease as normal growth, completely unaware that the quality and yield of bamboo shoots have been affected.

Symptom and ecology of mosaic disease of green bamboo

The main symptom of bamboo mosaic disease is that the leaves show yellow and green stripes, especially the heart leaves, the new long and young bamboo stalks have obvious yellow and green mosaics, and some old bamboo stalks also have obvious yellow and green mosaics. and mixed brown stripes, so it is also called brown stripe. Lignification of diseased bamboo shoots, poor quality of bamboo shoots, hard and hard to eat, commonly known as "bamboo shoot nails", diseased bamboo shoots or bamboo pole cross section can sometimes see black or brown spots, also known as "smelly bamboo shoots". Bamboo plants may not be easily detected at the initial stage of disease or mild infection, although they will not die immediately, but their development will be affected. In the later stage or a few years later, the yield of bamboo shoots will decrease significantly, and the amount of yield reduction will depend on the degree of disease and the degree of fertilizer management.

Mosaic disease is a systemic disease caused by bamboo mosaic virus (Bamboo mosaic virus,BaMV) infection. The virus exists in every part of the infected plant, including new bamboo shoots. Among the 60 species of bamboo in Taiwan, 2 genera and 14 species are damaged by bamboo mosaic virus, and 13 species of bamboo in Penglai are in the majority. This virus is a member of potato virus X (potato virus X group). In general, the virus of potato group X has no vector insect transmission, and it is mainly transmitted by mechanical transmission, and it is quite stable in vitro, cutting bamboo shoots and hoes for fertilizer management. or the friction between the diseased plant and the healthy plant will transmit the virus from the diseased plant to the healthy plant. Bamboo seedlings come from the mother stem, if the mother stem has been infected by the virus, it is bound to spread to the bamboo seedlings, regardless of whether newly planted or replanted, the bamboo seedlings of ordinary farmers are mainly from their own or taken from the adjacent old bamboo plantations. Bamboo mosaic virus will continue to spread and spread with asexual bamboo seedlings.