Proactively prevent small leaf rollers on rice

(Baonghean) -More than 400 hectares of summer-autumn rice in Nghia district have been affected by pests, mainly leaf rollers. In this situation, the district's Department of Agriculture and Plant Protection Station are coordinating with localities to direct people to take timely preventive measures so that rice can grow normally.

Since July 4, many fields in Nghia Dan district have begun to appear with small leaf rollers. This is a type of worm with a long life cycle. If not prevented in time, it will greatly affect the growth process as well as the rice yield later. In his rice field, Mr. Le Van Nhan, Son Hai hamlet (Nghia Loc commune) is spraying pesticides before the worms form cocoons. Mr. Nhan said: My family grows more than 1 sao of summer-autumn rice and 3 sao of the winter-spring crop. Currently, the summer-autumn rice area in the tillering period has been damaged by the second generation of small leaf rollers. To avoid spreading to other areas, I bought pesticides to spray.

Up to now, the whole Nghia Loc commune has had more than 80/400 hectares of summer-autumn rice infected with small leaf rollers with an average density of 10-15 individuals/m2, with an area of ​​up to 20-25 individuals/m2. Mr. Ngo Sy Cuong, Vice Chairman of the Commune People's Committee, said: After more than 2 years, this pest has returned to Nghia Loc's fields. Like the autumn-winter crop of 2010, due to rice being infected with leaf rollers, the rice yield of the whole commune decreased sharply.

After the agricultural extension officer reported the situation of pests on rice, the commune coordinated with the district Plant Protection Station to hold a meeting with the people and propose a timely prevention plan. Specifically, the commune will mobilize the motor pumps of the Sugar Factory and the people, asking families with infected fields to go to the fields to spray simultaneously. Thanks to that, about 80% of the area affected by pests has recovered, while about 20% has not been completely eradicated because people have not proactively sprayed according to the commune's schedule.

Mr. Le Van Nhan (Nghia Loc commune) sprays pesticides to prevent leaf rollers.

In Nghia Trung commune, the summer-autumn rice area damaged by leaf rollers has been over 220/262 hectares, concentrated in 16/19 hamlets of the commune. After synthesizing data from hamlets, the commune coordinated with the Plant Protection Station to train and inform people about prevention techniques. On July 15, the commune organized simultaneous spraying on all rice areas damaged by leaf rollers. Because the worms were in the first generation stage, the impact on the rice plants was not great, after spraying, the rice areas that were infected with worms recovered well.

Mr. Le Cong Tam, Head of the District Agriculture Department, said: Identifying the small leaf roller as a dangerous pest for rice plants, especially at the end of tillering and the beginning of panicle formation, the district has directed communes with infected rice areas to establish a Steering Committee and conduct regular and timely monitoring and grasp of the developments of pests and diseases, thereby reporting to the Plant Protection Station and the Department of Agriculture for timely guidance and support. For communes with large areas of damage caused by small leaf rollers such as Nghia Loc, Nghia Khanh, Nghia Trung, Nghia Thinh, ... The District People's Committee agreed to let the Plant Protection Station supply medicine to people through the trust of the commune and the people will pay later. At the same time, each commune will develop its own plan and mobilize motor pumps to organize simultaneous spraying to achieve the highest efficiency. Thanks to the implementation of preventive measures, the pest situation has been controlled, and the rice area in the district has developed well.

Mr. Cuong added that according to the forecast of the district Plant Protection Station, on July 25, the first leaf roller will break out in the rice fields. To prepare for effective prevention and control, the commune has broadcast a notice on the loudspeaker to inform all residents. At the same time, hamlets will hold meetings to disseminate prevention and control knowledge as well as prepare adequate means and medicines so that when the schedule is set, they can spray simultaneously.

Article and photos: Pham Bang