英文摘要 |
"The European red mite, Panonychus ulm Koch, and hawthorn spider mite, Amphitetranychus viennensis (Zacher), are two exotic species first found from Taiwan in 1979 and 1978, respectively. There was no information on their distribution in Taiwan, except a few collection data in Lishan area. A survey on the distribution of these two mites in Taiwan was conducted during the period of 2006-2009. Panonychus ulmi exists mainly in apple orchards in Lishan area at the altitudes of over 2100m. Although individuals of P. ulmi were collected from Baling, Shangguguang and Sun Moon Lake, they did not establish population in these three places. These individuals might not have been distributed to there by natural habitat-spreading, and might originate from the overwinter eggs of P. ulmi hidden in the imported apples which were frequently intercepted in quarantine. Amphitetranychus viennensis has dispersed from Lishan northward to Wuling farm and westward to Shangguguang." |