番茄细菌性溃疡病及其防治我们在莱阳作病害调查时，在繁种番茄上发现番茄细菌性溃疡病。受害植株叶小萎蔫、严重时全株枯死。茎上产生狭长条斑，后期纵裂，横切面髓部变褐中空。病果上产生“鸟眼状”病斑，中央褐色，表面粗糙，稍凸起，周缘白色。一般减产三至五成。番茄... Tomato Bacterial Canker Disease and Its Prevention We found tomato bacterial ulcer disease on all kinds of tomato when we conducted disease investigation in Laiyang. Affected plants leaves wilting, the whole plant died of serious. Stems produce long strips of plaques, the late longitudinal split, transverse section of the pulp brownish hollow. Fruit and disease produce “bird-like” lesion, the central brown, rough surface, slightly raised, peripheral white. General reduction of three to five percent. tomato...