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2,500
F
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F NF NF
b _7 a _;_ a _7 a
E
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Figure 2.--Development time from post diapausing second instar to moth emergence of male and female spruce budworm
reared in the midcrown and the lower sections (*) of flowering (F) and nonflowering (NF) balsam fir trees. Stami-
nate flowers were present only in the midcrown of flowering trees (n = 10 trees). For a given sex, means followed by
the same letter are not significantly different (p < 0.05).
6o
a
F F NF NF
t_
_o _ _ _
20 :
lO [ EE
o.....,....... _/_ ................... _, .....Z_ , I , b,-
Figure 3.mPercent survival of spruce budworm reared in the midcrown and the lower sections (*) of flowering (F) and
nonflowering (NF) balsam fir trees. Staminate flowers were present only in the midcrown of flowering trees (n = 10
trees). Means followed by the same letter are not significantly different (p < 0.05).
' i
89