Mr. Son's 40 hectares of summer-autumn rice were infected with golden apple snails.

(Baonghean.vn) - At this time the caseIn the 2017 summer-autumn rice season, Anh Son district has planted 2,700/2,900 hectares, early rice is in the tillering stage, however, in many rice areas, golden apple snails have appeared and caused damage.

Currently, the entire Anh Son district has 40 hectares of rice infected with golden apple snails, of which 10 hectares are heavily infected, concentrated in the communes of Binh Son, Khai Son, Phuc Son... With a high density of 3-5 snails/m2, locally 15-20 snails/m2. In rice fields, golden apple snails often have high densities in areas with water, in areas near ponds, lakes, and low-lying areas.

People collect golden apple snail eggs on summer-autumn rice fields. Photo: Huyen Trang

Mr. Nguyen Xuan Van - Head of the Plant Cultivation and Plant Protection Station of Anh Son district recommends: to prevent golden apple snails from developing widely and causing harm to summer-autumn rice production, farmers need to catch snails and collect egg nests to destroy them.

Manual methods can be used such as: Using sweet potato, taro, papaya, and jackfruit leaves, tied into bundles and dropped along the bank to attract snails and then collect them. Insert sticks or stakes as a support for snails to climb up and lay eggs, then collect the eggs. Make a 20cm deep trench to drain water around and in the field, gradually draining the water to concentrate snails in the trench to catch or spray pesticides.

Gathering to catch golden apple snails to destroy. Photo: Huyen Trang

Place nets or bamboo fences in the drains to prevent snails from spreading and to make them easier to collect. Nets should be placed early from the beginning of the season until harvest. In addition, people can use chemical measures: such as one of the drugs such as Padan 95SP, VT-DAX 700WP, Dioto830WDG... sprayed according to the recommended dosage.

Note that when spraying in fields with 3-5 cm of water, the fruit will be the highest. In dry fields, the effect is low and continue to retain water for 2-3 days.

Huyen Trang