小麦赤霉病[Gibberella zead(Sch w.)Petch)是长江中下游冬小麦区常发性病害,我区属零星发生,病穗率一般0.4％左右。近年来由于小麦栽培水平提高,种植密度增大,水肥充足,尤其在小麦抽穗、灌浆期多雨,1985年小麦赤霉病大暴发,大田病穗率7.6％,部分地块高达54％,对小麦产量影响较大。为指导赤霉病病穗的田间调 Gibberella zead (Schw.) Petch is a common disease in winter wheat in the middle and lower reaches of the Yangtze River. In recent years, as the level of wheat cultivation increased, planting density increased, adequate water and fertilizer, especially in wheat heading, filling rainy season, wheat outbreak in 1985, wheat head disease rate 7.6%, some plots up to 54% Yield greater impact. To guide the fritillary panicle field transfer