First report of Liriomyza sativae in Japan
In Japan, Liriomyza trifolii (Diptera: Agromyzidae – EPPO A2 quarantine pest) was first found in 1990 and then spread throughout the country. However, the indigeneous species L. bryoniae still predominates in tomato glasshouses and sometimes coexists with L. trifolii (e.g. in Kyoto Prefecture). During 1999, studies were done on the relative abundance of these two species, in two commercial tomato glasshouses in Muko city, Kyoto Prefecture. Surprisingly, a third leafminer species was discovered during these studies: L. sativae (EPPO A1 quarantine pest). It was observed that L. sativae coexisted with L. trifolii and L. bryoniae in one glasshouse and with L. bryoniae in the other. It was also observed that the relative abundance of the three species varied throughout the growing-season with different peaks for each species. This was the first record of L. sativae in Japan. Later, L. sativae was also found in Yamaguchi, Nara, Osaka, Hyogo, Nagasaki, Oita, Kumamoto and Okinawa Prefectures. The situation of L. sativae in Japan can be described as follows: Present in Honshu (Hyogo, Kyoto, Nara, Osaka and Yamaguchi Prefectures), Kyushu (Kumamoto, Nagasaki and Oita Prefectures) and Ryukyu archipelago (Okinawa Prefecture).
Sources
|
Abe, Y.; Kawahara, T. (2001) Coexistence of the vegetable leafminer, Liriomyza sativae (Diptera: Agromyzidae), with L. trifolii and L. bryoniae on commercially grown tomato plants.
Applied Entomology and Zoology, 36(3), 277-281.
|