The latest course on techniques and methods of sugarcane white leaf disease control

There are single or several white or milky yellow or light green stripes on the leaves of sugarcane white leaf disease plants, the stripes vary in width and width, sometimes the whole leaves become white, the leaves are soft, the lateral branches or tillers of the diseased sugarcane plants are all white, and the serious leaf sheaths also turn white. sometimes there are small green patches on white leaves, mottled and of different sizes. Let's take a look at the prevention and control techniques of sugarcane white leaf disease.

Symptoms of sugarcane white leaf disease

The symptoms of sugarcane white leaf disease are mainly manifested in sugarcane leaves, on which there are single or several white or milky yellow or light green stripes with different width and width. Sometimes the whole leaves turn white and the leaves are soft. The lateral branches or tillers of diseased sugarcane plants are all white, and the serious leaf sheaths also turn white, and sometimes small green patches appear on the white leaves, which are of different sizes. The diseased plant is dwarf, the stem is thin, the Internode is short, and the top leaves are clustered together.

Incidence conditions of sugarcane white leaf disease

The pathogen of sugarcane white leaf disease exists in the phloem sieve tube of infected sugarcane plants. In addition to being transmitted by diseased seedlings, sugarcane white leaf disease can also be transmitted through Taiwan spotted dust and leafhopper in the field, which is the main way of the second infection. Those who leave seeds with diseased sugarcane, especially those with basal nodes, almost all of the seedlings are diseased seedlings, which die about a month after germination, and the leafhopper has a serious disease. There were differences in disease resistance among varieties.

Control techniques of sugarcane white leaf disease

1. Quarantine, it is strictly forbidden to introduce diseased sugarcane seedlings from the disease area, regular inspection, it is found that the diseased plants are removed immediately.

2. Sugarcane orchards with a disease rate of more than 10% are not suitable for persistent roots, seriously ill sugarcane plantations are not allowed to collect seedlings, and sugarcane seedlings in diseased areas are not allowed to be moved to disease-free areas outside the area.