Pine Bark Aphid

By The Old House Web

Pine Bark Aphid

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The pine bark aphid infests the stems of white, Scotch and Austrian pine. The white waxy filaments produced by large numbers of the insect make the bark look as though it had been sprayed with something.

Light infestations cause little injury. Heavy infestations can cause stunting. The insects excrete honeydew. This sticky fluid can be used as a substrate by a black mold called sooty mold. The sooty mold causes no harm unless it blocks sunlight on the needles and reduces photosynthesis.

Use Orthene, Diazinon, Sevin or malathion.

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