1,400 hectares of rice in Nghe An are infected with brown planthopper and brown planthopper disease.

(Baonghean.vn) - Up to 1,400 hectares of spring rice in Nghe An are being affected by brown planthopper and white-backed planthopper diseases. It is forecasted that brown planthopper and white-backed planthopper will continue to develop on a large scale in the coming time.

Brown planthoppers are developing on 28 hectares of spring rice.

According to the report of the Plant Protection Department, up to now, the blast disease on spring rice has decreased to 530 hectares (15 days ago, over 700 hectares of rice were infected with blast disease). However, in some localities, spring rice has appeared with brown planthoppers and white-backed planthoppers.

Sheath blight has appeared on an area of ​​over 1,336 hectares in the districts of Yen Thanh, Hung Nguyen, Quynh Luu, Vinh City... with a prevalence of 5-10%, and in some places from 30-35%. Localities have organized guidance for farmers to spray and prevent nearly 70 hectares with a high prevalence.

Brown planthoppers and white-backed planthoppers have appeared on an area of ​​28 hectares in Ky Son, Anh Son, Tan Ky... with a density of 700 - 900 individuals/m2, locally 1,500 - 3,000 individuals/m2. Localities have propagated and instructed people to deploy spraying of pesticides for prevention.

Farmers need to proactively prevent pests and diseases in rice in the coming time.

It is forecasted that in the coming time, rice plants will move to the panicle stage, creating favorable conditions for brown planthoppers and brown spot disease to develop, accumulate in number and increase over a wide area. Therefore, localities should strengthen the investigation and detection of planthopper nests and direct timely spraying when the planthoppers are still young.

Farmers should choose specific pesticides to kill planthoppers: Pymetrozine (Chess 50WG...), Dinotefuran (Oshin 20WP, Cyo super 200 WP...), Lambda-cyhalothrin + Thiamethoxam, Nitenpyram (Elsin 10 EC)... For brown spot disease, in rice areas with a rate of 5 - 10% or more infected, farmers should be instructed to keep enough water in the fields and use one of the drugs with active ingredients: Viladamycin, Hexaconazole.

Xuan Hoang