More than 200 hectares of rice in Quy Chau are infected with brown planthoppers and white-backed planthoppers.

(Baonghean.vn) - The alternating sunny and rainy weather and high humidity have caused brown planthoppers and white-backed planthoppers to develop and attack summer-autumn rice crops. To proactively prevent the disease, the Quy Chau District Plant Cultivation and Plant Protection Station has cooperated with farmers to increase field inspections and handle the situation promptly to limit the impact on rice yields.

Mrs. Nguyen Thi Ha's family in Block 3, Tan Lac town, has 0.3 hectares of rice fields that have been destroyed by brown planthoppers and white-backed planthoppers. After discovering yellow leaves and brown planthoppers and white-backed planthoppers on the rice plants, her family proactively sprayed Sutin pesticide in time to minimize damage to the family's rice yield.

Ms. Nguyen Thi Ha proactively sprayed Sutin to kill brown planthoppers and white-backed planthoppers. Photo: Ha Thao

In the summer-autumn crop of 2017, the entire Quy Chau district planted nearly 900 hectares of rice. Currently, the rice is in the standing and heading stage, however, the rice fields are being devastated by pests, mainly brown planthoppers, white-backed planthoppers and sheath blight. Up to now, the entire district has nearly 200 hectares of rice infected with planthoppers, of which 29 hectares are moderately infected and 2 hectares are severely infected.

The entire Quy Chau district currently has over 200 hectares of rice infected with brown planthoppers and white-backed planthoppers with a common density of 600-1,500 individuals/m2.2, locally 2,000 individuals/m2, mainly 1st and 2nd instars. Photo: Ke Kien

Mr. Nguyen Xuan Linh, in charge of the Cultivation and Plant Protection Station of Quy Chau district, said: "To proactively and effectively prevent and minimize damage caused by pests and diseases, not allowing them to arise and spread, causing widespread damage, affecting rice yield, it is recommended to spray pesticides only on areas with a planthopper density of 1,000 individuals/m2 for rice areas from the tillering to panicle initiation period.²or more with one of the following drugs: Chess 50WG, Oshin 20WP, Elsin 10 EC, Sutin 50 SC, Chatot 600 WG... to spray according to the recommended dose. When spraying, there is no need to split the rice, but you must ensure enough water (24-30 liters/500m2) and lower the nozzle to evenly wet the rice stem and leaves.

To effectively prevent planthoppers, farmers need to regularly visit their fields and promptly detect pests. In addition, balanced fertilization for rice plants is also very important; farmers should absolutely not apply too much nitrogen./.

Ha Thao - Ke Kien