Downy mildew is a major foliage disease of cucurbit crops in the world.
霜霉病是世界上危害瓜类作物的主要叶部病害之一。
BY1 that could colonized and expanded on the plantlet leaves, unbodied leaves and potted plant leaves cause foliage disease.
BY 1在组培苗叶片、离体叶片、盆栽苗叶片上均能迅速定殖和扩展，引起叶片病害。
Forest stands of red oaks, with their tannin-rich foliage, may even provide caterpillars with safe havens from disease.
红栎树的林分枝的叶子富含鞣酸，甚至可以为毛毛虫提供远离疾病的安全避难所。
A virus disease of sugar beet occurred in Ningxia showing symptoms of yellows, parch blight and necrotic yellow vein of foliage leaves.
发生在宁夏甜菜上的一种病毒病的病株叶丛主要表现为黄化、焦桔和叶脉黄化坏死。
A virus disease of sugar beet occurred in Ningxia showing symptoms of yellows, parch blight and necrotic yellow vein of foliage leaves.
发生在宁夏甜菜上的一种病毒病的病株叶丛主要表现为黄化、焦桔和叶脉黄化坏死。
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