What disease is carried by bark beetles
Bark beetle Bark beetle A bark beetle is one of about 220 genera with 6,000 species of beetles in the subfamily Scolytinae. Traditionally, this was considered a distinct family Scolytidae, but is now understood to be very specialized members of the "true weevil" family (Curculionidae). Well-known species are members of the type genus "Scolytus", namely the European elm bark beetle "S. multistriatus" and the large elm bark beetle "S. scolytus", which like the American elm bark beetle "Hylurgopinus rufipes", transmit Dutch elm disease fungi ("Ophiostoma"). The mountain pine beetle "Dendroctonus ponderosae", southern pine beetle "Dendroctonus frontalis", and their near relatives are major
Foamy bark canker Foamy bark canker The foamy bark canker is a disease affecting oak trees in California caused by the fungus "Geosmithia pallida" and spread by the Western oak bark beetle ("Pseudopityopthorus pubipennis"). This disease is only seen through the symbiosis of the bark beetles and the fungal pathogen. The bark beetles target oak trees and bore holes through the peridermal tissues, making tunnels within the phloem. The fungal spores are brought into these tunnels by the beetles and begin to colonize the damaged cells inside the tunnels. Symptoms of the developing fungus include wet discoloration seeping from the beetle entry holes