Invasion information | ||
Range in Japan | Highland (500-1300m alt.) in northwestern Yamanashi Pref. to Suwako Lakein Nagano Pref. | |
Origin | Unknown. | |
Date | 1994 or earlier | |
Route | Unknown for the Japanese population. Spread in USA may be due to transport of alfalfa (fabaceous pasture). | |
Impact | Actually: Predation on fabaceous plants, and damage on agriculture of beans (especially soy bean and common bean). Native organism(s) affected: Fabaceous plants. Among crop plants, common bean, soy bean, adzuki bean can be host for this species, whereas fava bean cannot. | |
Regulation in Japan | Family Coccinellidae is desgnated as a Quarantine Pest (the Plant Protection Law). | |
Introduced range in other countries | USA and Canada |
Reference | Notes |
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100 of the Japan’s Worst Invasive Alien Species Based on temperature tolerance data, the entire northeastern Japan can be potential geographic range of this species. |