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What stand conditions make ponderosa pine forests susceptible to mountain pine beetle?

April 26, 2017beetle Conditions forests Mountain Pine ponderosa stand susceptible

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What stand conditions make ponderosa pine forests susceptible to mountain pine beetle?

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Forest stands with high densities of trees 6 inches in diameter or larger are considered susceptible to mountain pine beetles. Initially, beetles usually do not show a preference for larger-diameter trees, but as the outbreak collapses, or ends, more larger trees are usually killed.