. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. CHANDLER & FLINT: CONTROLLING PEACH INSECTS 23 in southern Illinois, and consequently the best time to spray in that part of the state, a series of jarring collections begun at Carbondale in 1925 has been continued to the present. Natural occurrence of the insect was determined by collections made in unsprayed peach orchards. Ten trees were taken as a unit and jarred every few mornings throughout the season. The curculios were allowed to fall on sheets and were released after being counted s
. Controlling peach insects in Illinois [by] S. C. Chandler [and] W. P. Flint. Insect pests; Peach. CHANDLER & FLINT: CONTROLLING PEACH INSECTS 23 in southern Illinois, and consequently the best time to spray in that part of the state, a series of jarring collections begun at Carbondale in 1925 has been continued to the present. Natural occurrence of the insect was determined by collections made in unsprayed peach orchards. Ten trees were taken as a unit and jarred every few mornings throughout the season. The curculios were allowed to fall on sheets and were released after being counted so as not to interfere with their natural activities in the orchard. Every season since 1928 sprayed trees have also been jarred. The records, part of which are represented in fig. 16, disclose the following facts: 1.—Shuck fall is early enough for a first application of spray APRIL MAY JUNE T JULY AUGUST. APRIL MAY JUNE JULY AUGUST Fig. 16.—Graph of plum curculio occurrence on peach, indicating number of adult curculios jarred from 10 unsprayed peach trees in three southern Illi- nois orchards on the dates given. In years of light infestation, such as 1931, the first two sprays are normally 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
Size: 1652px × 1512px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookpublisherurbana, booksubjectinsectpests
