上海园林主要阔叶乔木叶螨种类及槭树小爪螨为害情况调查

2018年7–12月,对上海主要阔叶乔木叶螨种类进行调查,并对槭树小爪螨Oligonychus ilicis进行为害程度和越冬情况调查。结合野外调查结果和文献记录,结果表明,上海园林阔叶乔木叶螨种类有17种,其中3种为国内新记录,分别为栗树小爪螨Oligonychus castaneae,朴树始叶螨Eotetranychus nomurai和槭树小爪螨;在上海地区首次发现神泽氏叶螨Tetranychus kanzawai为害玉兰Magnolia denudata,尼氏真绥螨Euseius nicholsi为害栾树Koelreuteria paniculata和无患子Sapindus mukorossi。野外观察发现,槭树小爪螨为害红花槭Acer rubrum一直持续到10月中旬,且不在落叶上越冬。

Investigation on Species of Spider Mites Damaging Broad-leaved Trees and Acer rubrum Damaged by Oligonychus ilicis in Shanghai Gardens

Field investigations were carried out on species of spider mites damaging broad-leaved trees in Shanghai gardens from July to December in 2018, as well as on Oligonychus ilicis damaging Acer rubrum. The results showed that there were 17 species, among them, three new species records in China, namely Oligonychus castaneae, Eotetranychus nomurai and O. ilicis. Tetranychus kanzawai was found for the first time damaging Magnolia denudata, Euseius nicholsi damaging Koelreuteria paniculata and Sapindus mukorossi. The investigation demonstrated that the damage of O. ilicis to A. rubrum lasted until mid-October and it did not overwinter on the leaves.