. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DAMAGE TO CHESTNUT POLES BY INSECTS. 3 entire pole was split open. In one line 10 to 12 years old (approxi- mately 30 chestnut poles per mile, 25 feet long, about 6 inches diam- eter at the top, 10 inches at the base, and apparently of second quality), between Petersburg and Crewe, Va.—the poles had already been reset once, east of Wilson, Va.—serious damage by the chestnut telephone- pole borer rendered from 15 to 20 per cent of the poles unserviceable. After the present second resetting it was esti- mated that
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DAMAGE TO CHESTNUT POLES BY INSECTS. 3 entire pole was split open. In one line 10 to 12 years old (approxi- mately 30 chestnut poles per mile, 25 feet long, about 6 inches diam- eter at the top, 10 inches at the base, and apparently of second quality), between Petersburg and Crewe, Va.—the poles had already been reset once, east of Wilson, Va.—serious damage by the chestnut telephone- pole borer rendered from 15 to 20 per cent of the poles unserviceable. After the present second resetting it was esti- mated that the poles can not last more than four or five years longer. West of Wilson the poles were naturally in much worse condition, and many were broken off and only held up by the wires on the sounder poles. In another line examined, between Portsmouth and Boy- kins, Va. (poles 30 feet long and apparently of second quality), serious damage by this borer averaged about 10 or 15 per cent, and between Boykins, Va., and Weldon, N. C, according to a linesman, 50 per cent of the poles are badly decayed near the surface of the ground. Much of this damage, however, is due to fun- gous heart rot. According to a statement by the foreman of a resetting crew, between Asheville, N. C, and Spartanburg, S. C, hundreds of chestnut poles were badly decayed in the 67 miles of line reset, and were only held up by the wires. The line was 15 years old. There was serious damage by "wood lice" (termites) and also by " white wood ; THE CHESTNUT TELEPHONE-POLE BORER. {Parandra brunnea Fab.) CHARACTER OF THE Fig. 1.—The chestnut telephone- pole borer {Parandra brunnea): Full-grown larva. (About twice natural size. (Original.) The chestnut telephone-pole borer is a creamy white, elongate, stout, cylindrical, so-called "round-headed" grub or ''wood worm" (fig. 1), which hatches from an egg deposited by an elongate, flattened, shiny, mahogany brown, winged
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