Wet, hot and cold weather has created favorable conditions for the fungus that causes rice blast to develop, damaging many winter-spring rice fields in Hai Duong.
Over 53,000 hectares of winter-spring rice in Hai Duong are in the tillering and finishing tillering stages. According to the provincial Department of Crop Production and Plant Protection, recently, the weather in areas in the province has often had light rain, drizzle, cloudy, overcast skies, and high humidity, creating favorable conditions for the fungus that causes rice blast to develop and cause damage scattered on winter-spring rice fields.
Reporters' observations in some fields in Nam Sach, Kim Thanh, Thanh Mien districts... show that the blast disease is developing quite commonly on sensitive rice varieties such as Q5, TBR 225, BC15 and glutinous rice 415. The disease appears more in low-lying fields, with excess nitrogen fertilization and dense sowing.
In particular, some rice fields are heavily infected with blast disease (about 30 - 40% of the area). Infected rice leaves have small white spots, then turn brick brown and spread rapidly.
The provincial Department of Crop Production and Plant Protection warned that blast disease will continue to develop and damage winter-spring rice if the above weather pattern continues. Failure to prevent it in time will result in a high risk of neck blast disease in the winter-spring rice crop in the coming period, reducing productivity.
Farmers need to closely monitor weather developments, maintain regular field inspections, absolutely do not apply nitrogen fertilizers, foliar fertilizers, or growth stimulants to rice during the blast infection stage. Timely spray blast prevention and control for diseased rice areas with plant protection chemicals containing highly effective active ingredients such as Tricyclazole, Fenoxanil (Angate 75WP, Map Famy 700WP, Chilliusa 360SC, Bankan 600WP, Bump 650WP, Ninja 35EC, Filia 525SE...).
Use the correct dosage according to the instructions on the package and do not spray with other drugs.
TM