. Biology in America. Biology. 394 Biology in America "On IMarch Ifi, 1906, I found that of 380 apple trees, 164, or over 43 ])(>r cent, were ruined, being completely gir- dled, some to a height of 8 to ]() inches above the ground. Thirty-six others, nearly 10 per cent, were less badly injured, while 180, or 47 per cent, apparently, were uninjured. Of 200 pear trees in the orchard 50 were more or less seriously damaged. The injury to these was intlicted early in the fall. . "In December, 1903, I examined a large orchard in Marion. Meadow Mice A great pest wliicli sometimes become
. Biology in America. Biology. 394 Biology in America "On IMarch Ifi, 1906, I found that of 380 apple trees, 164, or over 43 ])(>r cent, were ruined, being completely gir- dled, some to a height of 8 to ]() inches above the ground. Thirty-six others, nearly 10 per cent, were less badly injured, while 180, or 47 per cent, apparently, were uninjured. Of 200 pear trees in the orchard 50 were more or less seriously damaged. The injury to these was intlicted early in the fall. . "In December, 1903, I examined a large orchard in Marion. Meadow Mice A great pest wliicli sometimes become so numerous as to form veritable plagues. From an illustration by Morita. CotirtiHU of the U. ;S'. liurcitii of Jiioloyicul Purvey. County, Kan., where field mice were causing much damage. . The orchard comprised 480 acres and contained about 26,000 trees, mostly apple, eight to ten years transplanted. The trees averaged about 4 inches in diameter, but many measured 5 or 6 inches. The majority were headed low, their outer drooping branches touching the ground. In the spring of 1903 corn had been planted by listing it in the open spaces between the rows of trees; but owing to an unusually wet sum- mer, the crop had been abandoned, and sunflowers and other weeds and grasses luid made a luxuriant growth throughout the orchard. Over much of the area, ai)parently, no attempt. 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 Young, R. T. (Robert Thompson), b. 1874. Boston, R. G. Badger
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