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2. Updated 2023 from:
Legner, E. F. 1961. An ecological study of some
foliage-feeding insects on young nonbearing apple trees in Wisconsin. Ph.D. Thesis, University of Wisconsin,
Madison. 139 pp. Title
Page Acknowledgments Contents
Tables & Figures Introduction SUMMARY The years 1959 and 1960 were phenologically
similar, judging from occurrence of insects in the orchard and development of
the trees. Seventeen species in nine
families of Lepidoptera were collected from the apple orchard in 1959 and 33
species in 19 families in 1960. All
species except Dichomeria liguella (Hbn.), collected in 1959,
were present in 1960. Four species
occurred in two generations. All
other species had a single generation.
See Page 43 for all species present. Tree variety, treatment, and year
apparently influenced the number of individuals and species present. The three primary destructive species were
significantly more abundant on Red Delicious than on Cortland
apple varieties, and there were more individuals collected per tree in 1960
than in 1959. There were
significantly fewer eye-spotted bud moth larvae and pupae in the treated
section over both varieties in 1959 only.
The distribution of eye-spotted bud moth larvae became uniform between
the four orchard sections during the latter part of September 1960. Fruit-tree leaf roller larvae and pupae
apparently occurred at higher numbers in the check section. There were no significant differences between
treatments for the red-banded leaf roller in either year. Apple aphids were more abundant in the
check section of the orchard in 1959, but were distributed at random over all
sections in 1960. Page Number References
Table 1a Table 1b Table 1c Table 2 Table 3a Table 3b Table 4 Table 5 Table 6 Table 7-8 Table 9 Table 10-11 Table 12-13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 Table 26 Table
27 Table
28 Table
29-30 Table
31 Table
32 Table
33 Table
34 Table
35 Table 36
Table
37 Table
38-39 Table
40-41 Table
42 Table
43 Figure 1-2 Fig. 3-4 Fig. 5-6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 |
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