Koa wilt Koa wilt Koa wilt is a relatively new disease to Hawaii, discovered in 1980. Koa wilt is caused by a forma specialis of the fungus "Fusarium oxysporum", which is now abundant in Hawaiian soils and infects the native Acacia koa tree, a once-dominant species in the canopy of Hawaiian forests. Fusarium oxysporum f.sp. koae is believed to have been brought into Hawaii on an ornamental acacia plant. Fusarium fungi clog the tree xylem, causing significant wilt and mortality among these beautiful and iconic Hawaiian trees. The host for Koa wilt is Acacia koa, a tree that is native and endemic
KOA (AM) of Broadcasters. Winners were honored at the Radio Luncheon on April 17, 2007, during the NAB Show in Las Vegas. The station was named Large Market Station of the Year at the 2008 National Association of Broadcasters' Marconi Radio Awards. KOA (AM) KOA (850 kHz) is a commercial AM radio station licensed to Denver, Colorado. Owned by iHeartMedia, it serves the Denver-Boulder media market. KOA broadcasts a news/talk radio format, and is also the flagship station of the Denver Broncos, Colorado Rockies, and Colorado Buffaloes. KOA has studios in Southeast Denver, while the transmitter site is off South Parker Road