乌鲁木齐市园林植物病害调查

本文报道了1985年至1986年期间作者对乌鲁木齐市主要公园、花坛、温室、苗圃、植物园、行道等16个地点园林植物病害的调查结果。调查期间共采集病害标本300余号,经整理,鉴定共计193种病害,其中真菌病害133种,细菌病害4种,病毒病5种,类菌质体病6种,生理病害13种,寄生植物32种(按寄主统计),我国新记录2种,矮牵牛白粉病(Erysiphe sp.)与柳丛枝病(MLO),新疆新记录1属(Pestalotia)及24种。文中对乌鲁木齐市主要园林植物病害的症状,病原,发病程度及发病条件等作了简介,为园林植物保护工作提供了信息和防治依据。

Investigation of the Diseases of the Shade and ornamental Plant in Urumqi

During 1985 and 1986, an investigation of the shade and ornamental plant diseaseswas made in Urumqi, the result of which was given in this paper. Among a total number of 193 shade and ornamental diseases, 133 are fungal, 4 bactorial, 5 virosis, 6MLO, 13 physigenic and 32 parasitic plant (statistics with hosts). Two diseases are new to China, the powdery mildew of common pertunia (Erysiphe sp. ) and the witches' broom of white willow (MLO), 24 new to Xinjiang. For some economically important diseases in Urumqi. such as dodder, gray mold blight, powdery mildew and leaf spots, the symptoms, pathogens, infectional intensities and the favourable factors for their occurrence are describee in the paper briefly.