Koa wilt it starts to produce microconidia, eventually clogging the xylem. Once the Koa tree dies, the fungus invades all tissues and, upon reaching the dead plant surface, sporulates profusely producing macroconidia and chlamydospores. The fungus can survive saprophytically in the soil, as either mycelium or as any of its three spore types mentioned. The chlamydospores, as the resting spores, survive the longest in the soils, usually under cold conditions. Koa trees occupy dry to mesic areas on the islands of Kauaʻi, Oʻahu, Molokaʻi, Lānaʻi, Maui, and Hawaiʻi in elevations of 80 to 8,000 feet with 0 to 100 inches of rain.
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