. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 32 BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. Life cycle, bagged-fruit feeding method.—The life cycle of 43 indi- viduals fed by the bagged-fruit method is given in Table 29. Here the incubation period averaged days, the larval feeding period days, the cocooning period days, the pupal period days, and the life cycle days, or, adding days for the interval between emergence of the moth and egg deposition, days for the complete life cycle. Table 29.—Life cycle of the first gener
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 32 BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. Life cycle, bagged-fruit feeding method.—The life cycle of 43 indi- viduals fed by the bagged-fruit method is given in Table 29. Here the incubation period averaged days, the larval feeding period days, the cocooning period days, the pupal period days, and the life cycle days, or, adding days for the interval between emergence of the moth and egg deposition, days for the complete life cycle. Table 29.—Life cycle of the first generation of the codling moth as observed by rearing, bagged-fruit feeding method, Yakima, Wash., 1920. Num- Larval feeding Cocooning period. Pupal period. Life Date of ber of Incu- egg depo- indi- ba- sition. vid- uals. tion. Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- age. mum. mum. age. mum. mum. age. mum. mum. age. mum. mum. Days. Days. Days. Days. Days. Days. Days. Days. Days. Days. Days. Days. Days. June 13 4 11 21 18 15 5 13 11 60 47 15 5 11 23 16 6 4 14 11 52 43 16 3 11 26 15 5 5 • 13 13 55 44 18 3 10 19 17 4 3 13 11 46 42 19 7 10 22 14 9 4 14 11 49 39 20 3 10 17 15 4 3 13 11 43 41 21 11 10 26 17 8 5 13 11 53 43 25 3 7 21 18 5 5 13 12 46 42 26 4 7 24 20 4 4 13 11 47 42 43 26 14 15 3 14 11 60 39 1 Add days for complete life cycle. <ee»7t. |Fig. 18.—Time of deposition of eggs of the second brood of the codling moth at Yakima, Wash., 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 United States. Dept. of Agriculture.
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