French name: Carie rouge du pied et carie de l'aubier
Damage, symptoms and biology
The annual, semi-circular fruiting body has a membrane that covers the tubes. It resembles a pouch or small bag.
Grey sap rot develops rapidly in dead standing trees but is quite superficial, limited to the outer 1 to 2 cm of sapwood. As a result, little or no board-foot volume loss is associated with this decay.
Fruiting bodies usually develop the year after tree death occurs, and often form by the hundreds up the stem (Fig. c). On Douglas-fir, C. volvatus is often associated with old bark beetle galleries and can be used as an indicator of bark beetle kill. Sporophores of Cryptoporus volvatus could be confused with immature conks of other polypore fungi. The latter, however, are solid rather than "pouch-like." Insects have been shown to play a role in the dissemination of C. volvatus basidiospores.
Biology: Insects enter, feed, and then exit fruiting bodies of the pouch fungus, carrying spores to infect recently killed or dying trees. Typically, it occurs only on dead trees and snags within 1 to 2 years after the tree’s death.
Effects: Most commonly found on ponderosa pine in the Southwest, but can infect other conifers. This is not an aggressive pathogen, but invades a tree within the first 2 years of death. This fungus is very common in trees killed by bark beetles.
Similar Insects and Diseases: No other conifer pouch fungus has been identified.
Ricardo M Marcenaro - Facebook
Operative blogs of The Solitary Dog:
solitary dog sculptor:
Solitary Dog Sculptor I:
enviar materiales para publicar,
submit materials for publication,
Diario La Nación
Cuenta Comentarista en el Foro:
My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.
Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.