results of these studies were far from
conclusive. They indicated, however, that many eggs had been deposited
in the nuts before the burs had reached maturity. They also suggested
that the seasonal histories of the two species are closely parallel. At
Glenn Dale, Md., and Fairfax, Va., the small weevils predominated,
constituting about 69 to 90 per cent of the total numbers taken. At
Elkton, Md., only 42 per cent of the weevils were of the small species.

[Footnote 9: Curculio auriger Casey.]

Table 1. Results of studies to determine the time of oviposition of the
chestnut weevils.

Nuts Infested with

Date of Total Small Large Wormy
Bagging Nuts Chestnut Chestnut Nuts
Nuts Bagged Weevil Weevil
Year and Orchard
Number Number Number Percent
1945 July 9 52 2 5 13
Glenn Dale, Md. Aug. 1 46 4 2 13
Aug. 15 107 18 11 27
Fairfax, Va. Aug. 21 110 22 13 32
Sept. 12 123 63 11 60
1946 July 12 65 0 0
Glenn Dale, Md. July 18 40 0 0
July 26 67 0 0
Aug. 1 71 0 0
Aug. 9 29 1 0 3
Aug. 14 88 3 2 6
Aug. 23 53 18 2 38
Aug. 29 53 23 11 64
Fairfax, Va. July 26 98 0 0 0
Aug. 15 168 0 0 0
Sept. 4 164 139 16 95
1947 Aug. 15 54 5 1 11
Glenn Dale, Md. Aug. 25 38 8 0 21
Sept. 2 24 7 1 33
Sept. 9 42 18 4 52
Sept. 15 56 29 7 64
Sept. 22 90 27 11 64
Sept. 29 143 83 22 73
Fai