. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. 30 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 33 early spring until the middle of May; the rest of the year was exceedingly dry. There appeared to be sufficient hold-over effect of the early moisture to allow considerable percentage of emer- gence. TARNISHI1]D PLANT BUG Lygus pratensis (L.) Appearance and type of injury.—The tarnished plant bug. although considered a minor pest, often damages as much as 10 per cent of the Illinois peach crop. There are few, if any, years in which the insect does n
. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. 30 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 33 early spring until the middle of May; the rest of the year was exceedingly dry. There appeared to be sufficient hold-over effect of the early moisture to allow considerable percentage of emer- gence. TARNISHI1]D PLANT BUG Lygus pratensis (L.) Appearance and type of injury.—The tarnished plant bug. although considered a minor pest, often damages as much as 10 per cent of the Illinois peach crop. There are few, if any, years in which the insect does not cause blemishes on 2 per cent of all peaches grown in the state. Catfacing is the most common injury inflicted by the bug. This sometimes appears as closed. Fig. 21.—Injury to peach fruit caused by adult tarnished plant bug. lesions varying from slight dimples to extensive puckered areas, fig. 21. No pubescence develops on the injured places. The damage is worked early in the development of the fruit and it may be localized on a given tree, some branches having no affected fruit, although others may have a large part of their peaches disfigured. Less important, except in seasons of very light set of fruit, is a second type of damage caused by the furnished plant bug— death of the tiny fruit shortly after petal fall as a climax to injuries inflicted by the bug's feeding during the period of bloom. Stopback or dieback is a third injury, important chiefly J. 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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