A method for protecting a crop against fungal diseases by inducing local and systemic resistance of the crop comprising applying to the crop or its locus a composition containing an effective amount of at least one .beta.-aminobutyric acid or .beta.-amino valeric acid and salts and derivatives thereof.
一种通过诱导作物的局部和系统抗性来保护作物免受真菌病害的方法,包括将含有至少一种有效量的β-
氨基
丁酸或β-
氨基
戊酸及其盐和衍
生物的组合物应用于作物或其位点。