Prevention and treatment of garlic virus disease

The planting area of garlic in Eryuan County is more than 30,000 mu, and the output value is more than 100 million yuan. in recent years, due to the continuous cultivation of virus disease tablets, resulting in species degradation, yield and quality decline, seriously affected the income of garlic farmers.

I. symptoms of disease

At the initial stage of the disease, yellow stripes appeared along the leaf veins, the plants were dwarfed, the new leaves were not comfortable and twisted, and after bolting, the parts below the bud of garlic moss gradually turned green and white, the roots of the plant were few, and the garlic fruit became small and stiff in severe cases.

Second, the environmental conditions of the disease

The virus is mainly carried by garlic seeds, which is transmitted by peach aphids at seedling stage, especially in drought years.

III. Prevention and control methods

The main results are as follows: 1. Disease-free plants were selected in the fields with seeds.

2. Diseased plants were removed at seedling stage.

(3) spraying at seedling stage and before bolting to control aphids, large area continuous control is more effective.

4. Introduction from disease-free areas to ensure the supply of virus-free garlic.

5. At the initial stage of the disease, 20 virus Ling wettable powder, 1.5% Zhixianling emulsion and 1000 times of antivirus No. 1 water agent were sprayed to prevent the disease every 10 days or so for 2 times in a row.