In 2021, the incidence of grain diseases and pests was severe!

Release Date:

2021-03-15

According to a March 11 report on the website of the Ministry of Agriculture and Rural Affairs, it is estimated that in 2021, nationwide… Wheat In spring, major pests and diseases occurred at a generally severe level, affecting 800 million mu of farmland—more than the previous year. Among them, Wheat The national incidence of stripe rust covers 60 million mu. Wheat The nationwide area affected by scab is 90 million mu, while the area affected by aphids totals 200 million mu‑times.
To strengthen technical guidance on prevention and control, effectively curb the damage caused by major pests and diseases, and ensure Wheat Ensuring stable production and increased incomes, the Ministry of Agriculture and Rural Affairs has released the “2021 Post-Spring…” Wheat “Technical Plan for the Prevention and Control of Major Pests and Diseases,” which calls for prioritized control measures. Wheat Major diseases and pests such as stripe rust, Fusarium head blight, and aphids are addressed, while also taking into account emerging threats like stem base rot and common problems like sheath blight, powdery mildew, and wheat blossom midge. The treatment coverage rate exceeds 95%, the proportion of integrated pest management implemented through professional, unified control measures is over 50%, green pest management covers more than 40% of fields, overall control efficacy surpasses 90%, and losses due to disease and pest damage are kept below 5%. Each high-quality… Wheat Production bases, high-yield demonstration plots, and green pest‑control demonstration zones have achieved full coverage of integrated pest management and green control measures.
The fall armyworm is expected to infest 40 million mu of land.
The National Agricultural Technology Extension Center has released the “2021 Fall Armyworm Control Technical Plan,” which indicates that in 2021, infested areas will be concentrated primarily in the Huanghuaihai region and areas to the south; the Southwest and South China regions will experience multiple generations of infestation, while the Jiangnan and middle‑and‑lower reaches of the Yangtze River will see moderate outbreaks. The Jianghuai, Huanghuai, Northwest, and North China regions are expected to experience relatively mild infestations, with an estimated affected area of 40 million mu.
The control objectives, as outlined in the plan, are to ensure two key outcomes: first, that all areas where pest densities exceed threshold levels are fully protected; and second, that no large contiguous areas within affected regions suffer widespread crop damage. The overall treatment and control rate is targeted at 90% or higher, with a 100% treatment and control rate in severe recurrence zones, while total economic losses from pest damage are kept below 5%.
In terms of control strategies, the approach is to focus on the annual breeding areas, manage the migratory flyover zones, and protect… Corn In the main production areas, strategies emphasize strengthened joint prevention across three zones and targeted control along four key belts, implementing layered interception and trapping of migrating adult pests. Early and small-scale interventions are prioritized, with comprehensive eradication of larvae to minimize damage and losses. Focusing on major crops, critical seasons, and priority regions, efforts are intensified through unified pest management and regional collaborative control, ensuring the effective implementation of preventive and control measures.