柑桔果梗受炭疽病菌侵染后，初退绿呈淡黄色，后变褐色逐渐干枯，呈“枯蒂”状，果实随即脱落，尤其是果梗细长的柑发病较重。笔者１９９６～１９９８年在柑园调查，一般在７～８月及果实生长后期发病严重，严重的柑园，发病株率在８５％以上，单株落果率５０％以上... Citrus fruit peduncle by anthracnose bacteria infection, early retreat green light yellow, brown later gradually dry, was “dry pedicle” -like, the fruit then fall off, especially the slender fruit stems of the serious incidence. The author from 1996 to 1998 in the citrus orchard survey, usually in the 7 to August and the late fruit growth stage of serious, serious citrus orchard, the incidence rate of more than 85%, single drop rate of 50% or more ...