油菜生产要搞好常发病害霜霉病的及时防治

• 作 者: 王迪轩 龙霞
• 机 构: 湖南省益阳市赫山区蔬菜局,
• 出 处: 农药市场信息
• 发表日期: 2013年05期
• 关键词: 油菜 油菜霜霉病 芥菜型油菜 甘蓝型油菜 白菜型油菜 油菜区 种子含油量 病株残体 东南沿海 真菌

油菜霜霉病,俗称龙头、发瘘、癃病,是由土壤、病株残体和种子传播的真菌性病害,以长江流域、东南沿海受害重,春油菜区发病少且轻。三种油菜类型中,白菜型油菜发病最重,芥菜型油菜次之,甘蓝型油菜最轻。一般发病率10%~30%,严重发病可达80%以上,种子含油量降低0.3%~10.7%。主要危害叶片,其次为花梗、角果和茎秆等。

Rapey mildew, commonly known as faucet, fistula, hysteria, is a fungal disease transmitted by soil, diseased plant debris and seeds. It takes less weight and is lighter in the rapeseed area along the Yangtze River and the southeast coast. Among the three types of rapeseed, the incidence of cabbage rape was the highest, followed by Brassica juncea and the lightest rapeseed. The general incidence of 10% to 30%, severe disease up to 80%, seed oil content decreased by 0.3% to 10.7%. The main damage leaves, followed by pedicel, fruit and stalks and so on.