西瓜细菌性果斑病的防治西瓜细菌性果斑病主要危害果实，发病初期果实表面首先出现几个１－几毫米大小的暗绿色水浸状斑点（据此又有木浸病之称）。然后很快扩展为边缘不现则的大型暗绿水浸状病斑，后期病斑转为褐色，龟裂，西瓜腐烂。病斑一般发生在西瓜向阳面，茎叶未发... Watermelon bacterial fruit spot prevention and control of watermelon bacterial fruit spot major fruit damage, the early onset of the fruit surface first appeared several 1- 1 mm in size dark green flooding-like spots (according to wood weakened it again). And then quickly expanded to the edge of the dark green spot-like spot, the late lesions turn brown, cracked, watermelon rot. Lesions usually occur in the watermelon sunny side, stems and leaves not fat ...