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.
Nin Jiom Pei Pa Koa Nin Jiom Pei Pa Koa King-to Nin Jiom Pei Pa Koa (), commonly known as Nin Jiom Pei Pa Koa or simply pei pa koa (), is a traditional Chinese natural herbal remedy used for the relief of sore throat, coughs, hoarseness and aphonia. It is a throat demulcent and expectorant. In the name of the company, "king-to" means "capital", referring to Peking and "nin jiom" means "in memory of my mother"; hence, it stresses the important virtue of filial piety. "Pei pa koa" means "loquat syrup". The product is marketed under the brand name Cap Ibu dan Anak (Malay