朗伍德王莲腐霉叶腐病的发生与综合防治

摘要

Victoria“Longwood hybrid” is a well-known large tropical aquatic plant of high ornamental value. Pythiumleaf rot disease on Victoria water lily is a seedling -stage devastating disease caused by Pythiumhelicoides. In this paper the symptoms and pathogenesis of the disease were summarized and its predisposing factors in greenhouse seedling-raising were analyzed. Some key control techniques were systematically summarized fromthe aspects of agricultural measures and chemical control.%朗伍德王莲是著名的大型热带水生植物，观赏价值高。腐霉叶腐病是由旋柄腐霉导致的朗伍德王莲苗期一种毁灭性病害。本文总结了该病的症状和发病规律，分析了温室育苗的诱病因子，从农业措施和化学防治方面，系统地总结了关键防治技术。