Invasion information |
Range in Japan |
Almost entire Japan |
|
Origin |
USA and Canada |
Date |
The first record was in 1952, at Shimizu Port, Shizuoka Pref. |
Route |
Accidental: With soy bean imported from USA and Canada. |
Impact |
Actually: Competition with native grasses along riverside, crop, afforestation tree, etc. Native organism(s) affected: Native plants, crop, etc. |
Regulation in Japan |
Import, transport and keeping are prohibited in Japan by the Invasive Alien Species Act. Import of Cucurbitaceae plants from areas with Tephritid fruit flies (Bactrocera cucurbitae and Ceratitis capitata) to Japan is prohibited by the Plant Protection Law. |
Introduced range in other countries |
South America, Europe, Africa, Asia, Oceania. |