Vermont 
Maryland 
Maine 
Hew Hampshire 
ITew York 
Wisconsin 
Minnesota 
-621- 
J OHE S:l AND S K A- D '- E- - T R E E I N S 3 C T' S 
EUROPEAN FRUIT LSCANIUM (Lecjinrum • corni Bouche) 
H. L. Bailey (October 27): Crawlers appeared in considerable 
numbers on twigs and, later, on the large branches of trees in 
and about Montpelier during the summer. There had been a 
heavy infestation of adult scale insects from the year before. 
Ash and elm were most seriously infested. 
BEECH 
WOOLLY BEECH APHID ( Prociphilus imbricator Fitch) 
C. H. Hanson (October 16): Insects were found on beech 
trees at Forest Glen. 
BIRCH 
BIRCH SKELET01TIZER ( Bucculatrix canadensi sella Chamb.) 
BIRCH LEAF-MINING SA7FLY ( Phyllotreta nemo rata Fall.) 
J. V. Schaffner, Jr. (September 24): Observations made in 
several localities between Skowhegan, Guilford, and Monson 
showed 25 to 50 per cent of the foliage mined with occasional 
trees showing possibly 75 per cent of the foliage affected. 
From Monson to Greenville and Bingham to Jackaan from 20 to 
25 per cent of the foliage was mined. Bucculatrix infestations 
arc severe in these localities. 
J. V. Schaffner, Jr. (September .24): In the White Mountain. 
section of ITcw Hampshire the birch foliage, especially on the 
mountain sides, is badly browned by the B_j_ canadensi sella . The 
skeletonizer seems to be largely responsible for this condition 
though some of it is due to the great abundance of aphids. 
T. H. Jones noted a heavy infestation of about 2 acres in a 
growth of small gray birch at Exeter. This was the only instance 
of injury noted in this section. 
R. D. Glasgow (October 2&)j The birch in northeastern New 
York and including the greater part of the Adirondack area has 
been severely injured this year and in many places completely 
defoliated by the middle of September, through the work of one 
or both of two insect pests, namely, JL canadensi sella , and 
the white birch leaf -mining oawfly (P^ nemorata Fall.). 
W. Middleton (September): B. canadensi sella has been re- 
ported as abundant from Wisconsin. 
W. Middleton (September): We have received reports of the 
abundance of B. canadensi sella in Minnesota. 
