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What Does Ambrosia Beetle Damage Look Like

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Published on Jan 25, 2012

http://www.homeinspectioncarolina.com When it comes to wood destroying you always hear about termites, powder post beetles, and sometimes old house borers but and often forgotten wood destroying insect is the ambrosia beetle. Ambroshia beetles have that name due to the staining they leave around the wood. In this video the Charlotte home inspector Preston Sandlin shows what Ambrosia beetle damage looks like. Ambrosia beetles are beetles of the weevil subfamilies Scolytinae and Platypodinae (Coleoptera, Curculionidae), which live in nutritional symbiosis with ambrosia fungi and probably with bacteria. The beetles excavate tunnels in dead trees in which they cultivate fungal gardens, their sole source of nutrition. After landing on a suitable tree, an ambrosia beetle excavates a tunnel in which it releases spores of its fungal symbiont. The fungus penetrates the plant's xylem tissue, digests it, and concentrates the nutrients on and near the surface of the beetle gallery. The majority of ambrosia beetles colonize xylem (sapwood and/or heartwood) of dying or recently dead trees. Species differ in their preference for different parts of trees, different stages of deterioration, in the shape of their tunnels ("galleries"). However, the majority of ambrosia beetles are not specialized to any taxonomic group of hosts, unlike most phytophagous organisms including the closely related bark beetles http://www.askthecharlotteinspector.com

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