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C. J. Sorcnson (April 22): Pea aphids are very abundant in alfalfa 
fields at Moat). 
Washington. R. D. Eichmann (April 2): Populations " nearly stationary 
during the last month on hay-mcad$w alfalfa in the southeastern part 
of the State. Very few are found on erosion-control alfalfa en higher 
ground. 
Oregon. M. M. Rcehor and L. P. Rockwood (April 19): The long warm fall 
of 1937 in the Willamette Valley, following sufficient precipitation 
to germinate self-sown and early fall-sown annual legumes, and a mild, 
exceptionally v/et winter were favorable to the winter survival of 
viviparous forms. A wet, cold March delayed the spring "build-up of 
aphids until the first v/eek of April. Since then a rapid increase was 
noted in several fields of vetch and Austrian winter field peas seeded 
in September and early in October. Fields seeded after October 25 at a 
distance from earlier seeded annual legumes or from volunteer are free 
from infestation, but some migration into these fields is expected soon. 
The only natural enemies present in appreciable numbers arc the two 
species of fungi Entomophthora aphiais and Empusa planchoniana , espec- 
ially tho former. 
California. E. 0. Essig (April): The pea aphid has been very abundant in 
the alfalfa fields of central and southern California since April .1. It 
is especially numerous in the Antelope Valley near Lancaster. 
COWPEA APHID ( Aphis medicaginis Koch) 
Arizona. C, D. Lebert (April 21): An extremely heavy infestation of the 
alfalfa or cowpea aphid was observed in a 30-acre field of alfalfa 
northwest of Phoenix. The alfalfa stems were bent over from the weight 
of these pests. 
CLOVER 
CLOVER LEAP WEEVIL ( Hypera punctata P.) 
Maryland. E. N. Cory (April 19): This pest was reported from Ellicott 
City attacking clover. 
Kentucky. W. A. Price (April 27): This weevil did some damage to clover 
and alfalfa in the western part of the State. 
Kansas. H. R. B'ryson (April 13) : The clover leaf weevil has been reported 
as infesting alfalfa fields at Predonia. 
Idaho. R. W. Haegele (April 19): This weevil is much more abundant in 
the southwestern part of the State than usual and in numerous areas is 
damaging the early growth of alfalfa. Other outbreaks have been obser- 
ved in springs following mild winters. 
P. H. Shirck (April 15) : Larvae are feeding in crowns of alfalfa 
plants at Parma, in southwestern Idaho, thus preventing nev; growth. 
