. Eastern forest insects . F-504087 Figure 200.—Cross-section of an oak log showing galleries made by carpenter ants. and are kept free of frass. The presence of large black ants run- ning about the house; swarms of large black, winged ants about the house in the spring; piles of sawdust-like borings; slit-like holes in woodwork such as window and door casings; and faint rustling sounds in walls, floors, woodwork, and flush-panel doors are all evidences of infestation in a house. Where infestations are of long standing, damage to structural timbers may be severe and require extensive repairs.
. Eastern forest insects . F-504087 Figure 200.—Cross-section of an oak log showing galleries made by carpenter ants. and are kept free of frass. The presence of large black ants run- ning about the house; swarms of large black, winged ants about the house in the spring; piles of sawdust-like borings; slit-like holes in woodwork such as window and door casings; and faint rustling sounds in walls, floors, woodwork, and flush-panel doors are all evidences of infestation in a house. Where infestations are of long standing, damage to structural timbers may be severe and require extensive repairs. Telephone and telegraph poles also are subject to serious damage (fig. 201) (272). Overwintering males and females in colonies over 3 years old engage in nuptial flights from May to late July. Fertilized females then establish nests in cavities, usually under the bark of a tree,
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectforestinsects
