-Ir = - 
R. H. Smith (August 15) . "This pest was discovered in Idaho ir„ the 
spring of 1920. During the summer of this ye?r it became exceedingly 
abundant and more destructive in some orchaids near Twin Palls. Great 
numbers of mites hatched this spring, but these were largely destroyed 
during L£ay by frequent hea-7y showers. The mites are generally present 
in small numbers in orchards at present," 
SEOT-HOLE BORER ( Scol./tus rugulosus Ratz. ) 
J. J. Davis (August 16) . "The shot-hole borer is very abundant this 
year, especially attacking apple and cherry." 
CLOVER LUTE ( Brvobia praetiosa Koch) 
R. H. Smith (August 15) . "About as abundant as usual in southwestern 
Idaho. Control measures have been necessary in some orchards." 
PEAR 
PEAR PSYLLA ( Psylla pyricol a Foerst.) 
C. R. Crosby and assistants report flies of the second brood beginning 
to hatch in Orleans County July 16, the foliage and fruit in many 
orchards cmeard with honeydew. 3y July 23 most of the nymphs of the 
second brood had reached adult stage; flies of this brood were deposit- 
ing eggs on July 20. By August 6 the third-brood nymphs were beginning 
to hatch, 3y August 20 it was evident that the Bartlett pears would 
be harvested before psylla damaged them in Orleans County. Tins insect 
v/as also very destructive in Genesee and Ulster Counties. In Albany 
County a special spray was applied on July 13, by which time. most of ■ : 
tho insects had reached the fly stage. 
P. Z. Hartzell (July 16). "Very scarce throughout Chautauqua County. 
Adults now present." 
L. P. Strickland (August 15) . "A very heavy third brood of nymphs hatch- 
ing in Niagara County," 
PEAR LEAP BLISTER LUTE ( Eriophyes pyri Pgst.) 
C. R. Crosby and assistants report this insect as very abundant in 
Dutchess, Genesee, Chemung, Ontario, Otsego, .Monroe., Albany, and 
Ulster Counties. •• 
R. A. Cooley (August 15) . "Except where the trees were sprayed with 
lime-sulphur or miscible oil, tlnre are very severe infestations of 
pear-leaf blister mite in the apple orchards of the Bitter Root Valley." 
PEAR AND CHEER* SLUG ( Caliroa cera3i L.) 
W. S. Britton (July 6) . "Mr. H. -M. Rogers reports that this insect is 
more abundant than usual at Southington, several young trees being 
entirely skeletonised." 
