- 239 - 
T^e kinds of host plants from which most of the "beetles were taken 
during the 3-7 e a r period are shown in table 9» The number of beetles taken 
from each host in each year, the total taken from each host during the 3-ye-r 
period, and the percentage of the number of all "beetles collected \4i ich each 
hait furnished, are also - given. Bur oak supplied 21.19 percent of the total 
and hazel 1^,07 percent. The nine species given together supplied 85.55 per- 
cent of the total "beetles. These records are interesting, as they show the 
importance of oaks, hickories, poplars, c\;ltivated cherry (when this is in 
the midst of an infested area), hazel, and dogwood, as hosts. 
Table 9. - -Principal hos ts from 1935 to 1937% inclusive . 
and the tota l number of Phyllophaga "beetles taken from each 
Species 
Bur oak— 
Hazel 
Cultivated cherry 
Populus sp.- 
V Mlow- 
Butternut- 
Red oak group 
Dogwood— 
Total, 3 hosts- 
Total, all hosts: 
1935 
Number 
3,727 
59U 
i,U6l 
1,530 
969 
977 
239 
311 
Jffl. 
1936 
Number 
95 
38 
11U 
15U 
128 
57 
55 
1937 
Iqyaber 
5U1 
1,010 
677 
U67 
185 
6os 
2kk 
Total 
Number 
U.312 
2,863 
2,509 
2,321 
1,590 
1,290 
90U 
85^ 
770 
17,^13 
20,35^ 
Percent 
21.19 
1^.07 
'12.33 
11. Uo 
7.80 
6.3H 
4. 20 
3.78 
25-55 
