Rice sheath blight is a fungal disease restricting nutrient and water flow in the plant, leading to reduced plant development and yields. It is estimated that average annual yield losses may be as high as 50% during severe outbreaks. With rice production required to rise by more than 30% above todays level to feed an increasing global population, fungicide treatments are used. When adjuvants are incorporated with such treatments, wetting, spreading, adherence and penetration of the fungicide by the plant improves.