. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. 6 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 33 mere yellow sacs. They exude a waxy substance at first white, then gray, which hardens and forms the scale covering their bodies. The number of broods in a year depends upon temperature and latitude. Two broods in a year are ordinarily found in northern Illinois and as many as six in the extreme southern end of the state. During mild fall weather, crawling young have frequently been observed as late as the middle of November, and in the exceptionally
. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. 6 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 33 mere yellow sacs. They exude a waxy substance at first white, then gray, which hardens and forms the scale covering their bodies. The number of broods in a year depends upon temperature and latitude. Two broods in a year are ordinarily found in northern Illinois and as many as six in the extreme southern end of the state. During mild fall weather, crawling young have frequently been observed as late as the middle of November, and in the exceptionally mild autumn of 1931 crawlers were observed at Carbondale on December 17. PEACH BORER* Coyiopia exitiosa (Say) Appearance and type of injury.—Masses of exuded gum and frass at the base of a tree usually betray the presence of this insect, figs. 4 and 5. Examination of the trunk, for several inches above and below the groundline, of trees so marked, usually reveals the white wormlike borers working in brown areas of the bark or outer 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 Chandler, Stewart Curtis, 1889-; Flint, W. P. (Wesley Pillsbury), 1882-1943. Urbana
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Keywords: ., boo, bookcentury1900, bookpublisherurbana, booksubjectinsectpests
