. Cyclopedia of farm crops. Farm produce; Agriculture. Fig. 490. Pinholes in oak, the work of the oak timber Fig. 491. Pinholes in chestnut, the work of the chestnut timber worm. or other cause may result in the wood of the entire trunk being thus rendered worthless for stave timber, clapboards or first-class lumber. This insect breeds in great numbers in the stumps of dead trees and in the stumps and logs of felled trees, and is ever ready to attack living trees wherever a slight wound in the bark offers an opportunity. To avoid the attack of this in- sect on living trees, all injured
. Cyclopedia of farm crops. Farm produce; Agriculture. Fig. 490. Pinholes in oak, the work of the oak timber Fig. 491. Pinholes in chestnut, the work of the chestnut timber worm. or other cause may result in the wood of the entire trunk being thus rendered worthless for stave timber, clapboards or first-class lumber. This insect breeds in great numbers in the stumps of dead trees and in the stumps and logs of felled trees, and is ever ready to attack living trees wherever a slight wound in the bark offers an opportunity. To avoid the attack of this in- sect on living trees, all injured or dead hard- wood trees, as well as the logs of felled ones, should be promptly utilized or burned, and newly felled trees should be cut very close to the ground and the brush tops burned over the stumps. Indeed, the disposal of all places for the breeding of this insect will always be an important feature in the management of American hard-wood forests and farmers' woodlots. [For additional information, see Yearbook, Department of Agriculture, 1903, pp. 323, 324 and Bulletin No. 35, West Virginia Agricultural Experiment Station, p. 294.] The chestnut timber worm {Lymexylon sericeum) is somewhat similar in general form to the pre- ceding, but is at once distinguished by the dark brown, horny plate with toothed edges on the last segment of the body. It hatches from an egg deposited by an elongated, brownish beetle clothed with fine silky hairs. The habit of this borer is practically the same as the oak timber worm, except that it is found principally in chestnut, though it sometimes infests red oak and white oak. It is exceedingly destructive to the heart-wood of old chestnut trees (Fig. 491), and never fails to enter the slightest wound in the bark on the trunks and around the bases of the dead branches of liv- ing trees. It also breeds in dead or felled Please note that these images are extracted from scanned page images that may have been digitally enhanced for reada
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