Invasion information |
Range in Japan |
Hokkaido, Fukushima, and Kanto District, Hokuriku District to western Japan. In Ryukyus, Okinawajima and Kumejima Is. |
|
Origin |
Unknown. |
Date |
The first record in Japan was in Jun 1982 at Fukuoka and Jul 1982 at Okinawajima Is. The first record in Kumejima Is. was in 1984. |
Route |
Accidental: Hitchhiking on some transport |
Impact |
Actually: Predation on Fabaceae plants. Damage on Astragalus sinicus (an agricultural resource as nectar source) is serious in Japan. Shortage of food sometimes cause damages on cucumber, melon, egg plants, onion, etc. by adult weevil. Native organism(s) affected: Fabaceae plants. |
Regulation in Japan |
Family Curculionidae is designated as a Quarantine Pest (the Plant Protection Law). |
Introduced range in other countries |
Middle East, South Asia, East Asia, North Africa, North America, etc. |