顺德县是我省主要蚕桑区,桑园的病害一年四季均可发生、且种类多,现将主要病害的发生和防治情况简介如下,供参考.一、桑青枯病桑青枯病、有称细菌性枯萎病,群众称“瘟桑”、“疽桑”.该病是七十年代初期新发生的一种细菌性病害,具有发病急、蔓延快、死亡率高等特点,对蚕桑生产造成很大威胁.据1978年底普查,全县有131个大 Shunde County is the main sericulture area in our province, the mulberry disease can occur throughout the year, and many kinds, now the occurrence of major diseases and prevention of the situation are summarized below, for reference. There are bacterial wilt disease, the masses said The disease is a new bacterial disease occurred in the early seventies, with the onset of acute spread, high mortality and other characteristics , A great threat to the production of sericulture.According to the census by the end of 1978, the county has 131 large