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CLOVER ROOT BORER ( Hylastinus oTdscutus Mar sham) 
Oregon. D. C. Mote (April): Adults of the clover root borer were reported 
at Hubbard, the infestation amounting to 30 percent in one field of 
Austrian winter field peas adjacent to a 3-year-old. field of red clover. 
PEA APHID ( Illinoia pisi Kalt.) 
Wisconsin. C. L. Fluke (May 20): The pea aphid is plentiful on alfalfa in 
Dane County. Natural enemies such as syrphid flies, ladybeetles, and 
parasites are also quite active. 
Washington and Oregon. L. P. Rockwood (April 21): Low populations, rarely 
exceeding 200 per 100 sweeps, were found in irrigated fields in Washing- 
ton near Maryhill, Toppenish, Satus, Mabton, Touchet, and 7/alla 7/alla, 
and near Milton-Freewator, Blue Mountain, Stanfield, Hermiston, Umatilla, 
Irrigon, Arlington, and The Dalles in Oregon. In one irrigated field 
near Echo, Oreg. , with a southern exposure and protected by hills from 
the cold winter winds, I. pisi averaged 1,300 per 100 sweeps. Unirri- 
gated fields near Maryhill, Wash., Weston and The Dalles, Oreg., yielded 
from none to 5 P er 100 sweeps, and most of those swept were immigrant 
alates. Coccinellid beetles, especially Hippodamia convergens G-uer., 
were very abundant ( 10-68 per 100 sweeps), except in the Yakima Valley 
where the season appeared later than elsewhere. Full-grown larvae of 
H. convergens and of the syrphid Lasiophthicus pyrastri L. were collected 
at Echo, Oreg. 
Oregon. L. P. Rockwood and M. M. Reeher (May l6) : Aphid populations remained 
at practically the same low levels as in March on fall-sown annual 
legumes in Washington and Clackamas Counties until April 10 during cool 
weather. After that date, they multiplied rapidly, especially on 
Austrian field peas, during a 10-day period of abnormally warm weather 
without precipitation. This was also a period of remarkably fast growth 
of all crops. By May 6 the populations in some fields were 100 times as 
great as they had been on April 10, attaining 3,000 per 100 sweeps in one 
field. During the first week of May, during a period of moderate but 
daily precipitation following a similar period in the last week of April, 
the entomogenous fungus Entomophthora aphid in attained epidemic propor- 
tions among aphids in early fall-sown fields. As a result, the aphid 
populations wore reduced Z8 percent in some fields. 
SPITTLEBUC-S (Cercopidae) 
Maryland. E. IT. Cory (May 25): A severe outbreak of spittlebugs is occurring 
in Cecil, Harford, Baltimore, and Kent Counties on clover, alfalfa, and 
weeds. Farmers have been advised to mow hay at once. 
Delaware. L. A. Stearns (May lU) : A spittlebug, probably Philaenus l eucophthal- 
_mus_L. f is abundant in nymphal stages on clover and alfalfa at Odessa 
and Middletown. Several varieties are present. 
Oregon. D. C. Mote (May): P. leucophthalmus was hatching in considerable 
numbers on April 25 in the Willamette Valley. The first adult was observed 
on May 19. Reported by W. D. Edwards. 
