. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Peaches in Westekn New York. 377 The fruit bark-beetle or pin-hole borer {Scolytiis rugtdosus) is coming to be a serious pest ia this state. The black beetle is only a tenth of an inch long, and it bores through the bark of the trunk and branches of the plum, peach, apricot, cherry, pear, apple, quince and some ornamental trees. It cuts a clean round hole the size of a large pin, and limbs or trunks which are badly attacked look as if they had received a
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Peaches in Westekn New York. 377 The fruit bark-beetle or pin-hole borer {Scolytiis rugtdosus) is coming to be a serious pest ia this state. The black beetle is only a tenth of an inch long, and it bores through the bark of the trunk and branches of the plum, peach, apricot, cherry, pear, apple, quince and some ornamental trees. It cuts a clean round hole the size of a large pin, and limbs or trunks which are badly attacked look as if they had received a charge of very fine shot. I have been called to see two peach or- chards which were supposed to have the yellows, but most, if not all, the diffi- culty lay in the punctures of these tiny beetles. A piece of a branch from one orchard is shown natural size in Fig. 7. If one looks closely he sees the minute holes, and below them a lump of gum which has oozed from the punctures. Upon the same farm, dead apricot trees were found to be completely riddled by these pests, the entire bark of the trunk being loosened from the wood by the burrowing of the 7. Holes of fruit bark-beetle or pin- hole borer {Scolytus rngulosiis). Here, too, the larv« or grubs were very abundant, some- times as many as a dozen being found in a space as large as a dime. In the peach branch (Fig. 7) no larvae were to be found, and there were rarely any burro wings between the bark and wood. The hole ended in the sapwood and no beetles were. 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 Cornell University. Agricultural Experiment Station. Ithaca, N. Y. : The University
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