. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 16 BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. Table 13.—Life cycle of the first generation of the codling moth as observed by rearing, bagged-fruit feeding method, Yakima, Wash., 1919. Date of egg de- Num- ber of indi- In- cuba- Larval feeding period. Cocooning period. Pupal period. Life position. vid- tion. Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- uals. age. mum. mum. age. mum. mum. age. mum. mum. age. mum. mum. Days. Days. Days. Days. Days. Days. Days. Days. Days. Days. Day
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 16 BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. Table 13.—Life cycle of the first generation of the codling moth as observed by rearing, bagged-fruit feeding method, Yakima, Wash., 1919. Date of egg de- Num- ber of indi- In- cuba- Larval feeding period. Cocooning period. Pupal period. Life position. vid- tion. Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- Aver- Maxi- Mini- uals. 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. May 26 2 12 26 24 6 5 12 12 55 54 June 1 3 11 26 22 5 4 13 11 55 48 1 3 12 28 25 5 4 13 12 58 53 3 5 13 26 22 6 4 14 10 59 49 3 4 14 25 22 6 4 13. 00 14 12 57 54 4 2 14 27 24 6 4 13 13 60 55 5 6 14 26 20 6 4 44 11 88 50 8 11 12 30 22 7 5 19 11 63 50 8 3 13 24 21 5 3 12 11 52 50 12 5 11 27 21 6 5 14 11 57 48 15 4 9 29 22 6 4 44 13 80 51 48 12. 25 | 24. 23 30 20 7 3 44 10 88 48 1 Add days for complete life cycle. THE SECOND GENERATION. EGGS OF THE SECONE BROOD. Time of deposition.—The first eggs of the second brood were deposited by first-brood moths on July 15, and eggs were deposited. i» as /a ^s «as Fig. 7.—Time of deposition of eggs of the second brood of the codling moth at Yakima, Wash., 1919. daily until September 20, as shown in Figure 7. The maximum period of oviposition is less decided and much longer than that of the spring brood of moths (see p. 9). It extended from the latter part of July until nearly the last of August, with an actual maximum of 829 eggs on July 29.^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for re
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