. Protecting log cabins, rustic work, and unseasoned wood from injurious insects in the eastern United States. Forest insects; Wood Preservation. F-480474 Figure 3.—An adult ambrosia beetle (Xyleborus sp.) The food of these beetles is not the wood but a substance called "ambrosia," which is a coating formed of a minute fungus that is propagated by the beetles them- selves. It is this coating that stains the walls of their tunnels black. The damage by these bor- ers is caused almost entirely by the adult beetles, since the larvae of most species, until they change to adults, do not bo


. Protecting log cabins, rustic work, and unseasoned wood from injurious insects in the eastern United States. Forest insects; Wood Preservation. F-480474 Figure 3.—An adult ambrosia beetle (Xyleborus sp.) The food of these beetles is not the wood but a substance called "ambrosia," which is a coating formed of a minute fungus that is propagated by the beetles them- selves. It is this coating that stains the walls of their tunnels black. The damage by these bor- ers is caused almost entirely by the adult beetles, since the larvae of most species, until they change to adults, do not bore in the wood. Instead, they feed on the ambro- sia in the original tunnel or separate cells made by the parent adults who usually care for the larvae by feeding F-480475 Figure 4.—Work of adult ambrosia beetles (Xyloterinus politus (Say)) in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original St. George, R. A. (Raymond Alexander), b. 1894. Washington] U. S. Dept. of Agriculture; [for sale by the Supt. of Docs. , U. S. Govt. Print. Off.


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Keywords: ., bookcentury1900, booksubjectforesti, booksubjectwoodpreservation