Sugarcane mosaic virus disease will cause the leaves to turn yellow, the sugar content will decrease, and a small number of thin yellow stripes or yellow spots will appear in the basal leaflets, which will spread all over the leaves in a few days. Sugarcane virus strains and field virus strains are the main causes of sugarcane mosaic disease. When sugarcane mosaic disease occurs, 30% biological pesticide suspension should be used to spray the disease several times in time. Weeding should be done frequently at ordinary times, and intercropping and adjacent crops such as corn and sorghum should be avoided at the same time.

Sugarcane mosaic symptom

Sugarcane mosaic virus disease will lead to yellowing of leaves, dwarfing of plants, shortening of internodes, enlargement of pith gap and decrease of sugar content. At first, a small number of thin yellow stripes or yellow spots appeared in the basal lobule, and after a few days, they spread all over the leaves, and the spots quickly extended into irregular ellipses or long ellipses along the veins. Stems, especially those wrapped by leaf sheaths, also produce red or brown stripes.

Harm of sugarcane mosaic disease

Sugarcane mosaic mainly harms sugarcane leaves, especially basal leaves, which will seriously affect the quality and yield of sugarcane and reduce farmers' planting benefits.

Causes of sugarcane mosaic disease

Sugarcane virus strains and field virus strains are one of the main causes of sugarcane mosaic disease. Virus vectors are mainly wheat aphids, corn aphids, sugarcane aphids, peach aphids and other aphids that spread the virus, such as millet aphids, rust aphids, silk aphids, sugarcane aphids, peach aphids and so on. Ants coexist with nymphs and have the function of indirectly spreading diseases.

What medicine is used for sugarcane mosaic?

After the occurrence of sugarcane mosaic disease, it will be much better to spray it with 30% biological pesticide suspension several times in time.

Control methods of sugarcane mosaic disease

1, planting varieties with high disease resistance or immunity. For example, Tang Min 70/6 1 1, Guitang 1 1 and so on.

2. Choose disease-free sugarcane varieties, dig out diseased plants, and stop planting ratoon sugarcane in seriously ill fields.

3. Sugarcane mosaic disease should be prevented by weeding in time, because it is the host of the poisonous millet aphid, and at the same time, it should be avoided to intercrop with corn, sorghum and other crops.