鹿児島県において野菜・花卉類を加害するナスハモグリバエ，マメハモグリバエおよびトマトハモグリバエの種構成

The relative abundance of three Liriomyza leaf miners, L. bryoniae, L. trifolii and L. sativae infesting 23 cultivars/species of commercially cultivated vegetables and ornamental flowers was examined over three growing seasons, in a field survey on the Satsuma Peninsula of Kagoshima Prefecture, Kyushu Island. Infested leaves were sampled monthly and the relative abundance of emerging flies was compared among plant cultivars or taxa. For L. bryoniae, we found just a single adult that emerged from a cucumber sampled in 2005. The relative abundance of the leaf miners tended to depend on the families of the host plants. L. trifolii completely predominated on members of Brassicaceae, Compositae, and Umbelliferae, while L. sativae predominated on members of Cucurbitaceae, although a few L. trifolii emerged each year. L. trifolii and L. sativae were both sampled constantly on 3 species of Solanaceae and 3 species of Leguminosae and abundant species varied inconsistently among sites and among years. These results conflicted with a similar survey conducted on Honshu Island in the following 3 points : 1) there were few individuals of L. bryoniae ; 2) L. trifolii predominated completely on Brassicaceae ; and 3) L. trifolii and L. sativae were both sampled on Leguminosae and the abundant species varied inconsistently.