Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Acorns pulled from Plague granary 22-23 Nov. 1982
Presumably all these are this year's acorns.
OK <½ ID Total
Q. agrifolia 56 3 59
Q. lobata 10 5 15
Q. douglasii 1 0 1
Totals 67 8 75
5 live grubs
were found;
1 weevil (large) in Q.l.
2 small ? in Q.a.
2 weevils in bag.
% agr: 79%
% lob: 20%
%doug: 1%
%ID:
agr: 59%
lob: 33%
Acorns pulled from granary 19 Dec. 1982
OK <½ ID >½ ID Total
Q. agrifolia 43 6 1 50
Q. lobata 12 3 2 17
Q. douglasii 8 0 0 8
Total 63 9 3 75
%agr: 66%
%lob: 23%
%doug: 11%
%ID
agr: 14%
lob: 29%
12 Grubs came from this batch. 2 were "floating" (both weevils).
7 weevils were in Live Oaks (4 in one acorn, 2 in another, 1 in 1).
2 other grubs were alive in agrifolia acorns.
The insect damage in the lobata was generally older; only 1 (probable) weevil
was detected in that.
Several acorns had exit holes - sometimes such acorns had live grubs
in them and other times no.