 The cause was found to be the fungus "Cryptosporella suffusa", which may also have been responsible for a similar mass mortality of alders in the area in the 1950s.The affected trees seemed to be those suffering from stress, perhaps brought on by drought or resulting from defoliating insects such as the woolly alder sawfly.Yoshitaka Naito

Yoshitaka Naito (born February 17, 1984) is a Japanese mixed martial artist from Inzai, Chiba Prefecture, Japan who is currently signed to ONE Championship.