Ohio, T, H. Parks (April 22): R. prunif oliae was very abundant on open- 
ing buds 10 days ago at -Columbus, and today the stem mothers have 
matured and are surrounded by colonies of young. No other species 
of. aphids observed on apple trees today. ' ' 
Michigan, R, Hutson (April 22): Grain aphids are very common on apple 
trees over the entire State, 
Wisconsin. C, L, Fluke (April 25): Apple grain aphid hatched v between 
Aoril 10 and l4 in Door County and is quite numerous. Green apple 
aphid had not hatched by April 22. 
J. A, Callenbach (April 25): Apple grain aphids and green apple 
aphids ere relatively scarce in Crawford County, in the southwestern 
part 'of the State. Syrphids are very active and should reduce the 
population even further, 
Minnesota. A. A. Granovsky (April 15): Aphids are hatching in moderate 
numbers on fruit trees at Saint Paul. 
LEAPHOPPSRS ( Cicadellidae) 
Indiana. L, F. Steiner (April 24): Adult apple leafhoppers are very 
abundant in some orchards at Vincennes and evidence of considerable 
feeding on the new foliage is common, 
COMSTOCK'S MEALYBUG ( Pseudococcus constocki Kuw. ) 
Virginia. G. J. Haeussler (April): Hibernating egg masses ranged from 
scarce to very abundant in Albemarle County apple orchards and 
populations varied greatly within individual orchards. Eggs began 
to hutch on Anril l6, 6 days earlier than last year, and first-stage 
nymphs were first observed feeding on April 21, 11 days earlier 
than last year. Hibernating eggs also observed during April in 
Clarke, Nelson, Botetourt, and Roanoke Counties, Hibernating 
cocoons of the parasite Clausenia purpurea Ishii are numerous in 
some orchards but many of these have been attacked by secondary 
parasites. The recently introduced Allotropa sp., a Japanese 
parasite, has overwintered successfully in several localities in 
which it was colonized last year. 
West Virginia, G. J. Haeussler (April 17): Hibernating eggs are present 
in great numbers in one apple orchard at Knowlesville, in Berkeley 
County, and present though scarce in an orchard at Ran'son, in Jeffer- 
son County, No hatched eggs observed today, although many appear 
about ready to hatch. Hibernating mummies of the introduced Allo - 
tropa, sp. are very abundant at Knowlesville on trees in which this 
parasite was colonized last year. 
SCURFY SCALE ( Chionaspi s furfura Fitch) 
Pennsylvania. T. L, Guyton (April l4): Somewhat numerous on apple at 
Cooper sburg, Lehigh County, in southeastern Pennsylvania, 
