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P R : S T AIID S '■" fi A D B - T E 3 32 I " S 2 C T S 
CANKER - T 0?J'S (Geometridac) 
Kansas H. B. Hungerford (Pebruary 15): 'Ve had a rather heavy emer- 
gence of the fall canker worm in Laurence, during December and Janu- 
ary. 
H. L. Parker (February 23): The first emergence of canker 
worms at Manhattan was noted on January 5. The first spring 
canker worm ( Paleacrita vcrrotn Peck) female was recorded on 
January 25 while the highest emergence of females representing 
the fall canker worn ( Alsonhila pomctaria riarr.) was recorded 
on February 9. 'The highest emergence of males including both 
species occurred on February 9. The highest emergence of 
spring canker worn females to date occurred on February 22. 
FALL WEB703M ( H,ypha:itria cunea Drury) 
Maine H. 3. Peirson (February 23): "Jests contain large numbers of 
Apantcles cocoons, which would indicate that the heavy outbreak 
of last year will subside. 
tfALlOTSSTICK ( Dia-pheromcra femorata Say) 
Michigan S. A. Graham (January 20): The valkingstick, which in 1930 
caused a great deal of defoliation in certain of the forests 
in the northern part of the lower peninsula, did not make its 
appearance in 1931. This was somewhat of a surprise in spite 
of the fact that some of the local people had told me previous- 
ly that outbreaks only occurred every other year. Search in 
the litter beneath the trees indicated that the eggs normally 
pass through two winters before hatching. The ground at the 
present time in those places where the insects were abundant last 
year is literally peppered with eggs. In some spots they run as 
high as 50 or more per square foot. Doubtless next year will 
see another outbreak of this insect. The holding over of the 
eggs which I have just described is evidently the result of the 
action of some physical condition which we do not understand, be- 
cause eggs collected in the fall of 1930 and kept outdoors in 
Ann Arbor hatched last spring, whereas those that lay on the 
ground in the locality where they were laid failed to hatch. 
. OYSTIX'.-SHZLL SCALF ( Leoidosaphes ulmi L.) 
Maine H. 3. Peirson (February 23): Poplar, white birch, and moun- 
tain ash were killed at Bar Harbor in December, 1931. 
