The bacterium Xanthomonas oryzae naturally exists in paddy soil and enters rice plants through the roots. It spreads from infected leaf tissues via mechanical wounds or stomata. The disease thrives during rainy months, in cloudy weather, and high humidity conditions. It tends to become severe in fields with high planting density and excessive fertilization—especially overuse of nitrogen.
When the disease becomes severe, it reduces the photosynthetic capacity of the leaves. During flowering, poor pollination occurs, resulting in many unfilled or shriveled grains, lower grain-setting rate per panicle, and shorter panicles—ultimately leading to reduced yield.
When rice plants are infected, farmers can use Biological Bacteria Treatment with a Fugous Proteoglycans formula. This helps regenerate damaged cells and eliminate the bacterial pathogen causing leaf blight.
It is important to spray the treatment as soon as symptoms appear to achieve the best results.
When spraying, lower the nozzle to ensure better leaf contact, and apply in the afternoon when the weather is cool and dry.
