| 
54. 
56. 
62. 
63. 
64. 
65. 
66. 
67. 
58. 
1965. The spotted alfalfa aphid. How to con- 
trol it. U.S. Dep. Agr. Leafl. 422 (Rev.). 8 p. illus. 
1968. The spotted alfalfa aphid. How to con- 
trol it. US. Dep. Agr. Leafl. 422 (Rev.). 8 p. illus. 
. USDA AcricutruraL ResrarcH SERVICE AND ForEST 
Service. 1967. Suggested guide for the use of insecticides 
to control insects affecting crops, livestock, households, 
stored products, forests, and forest products — 1967. 
U.S. Dep. Agr. Agr. Handb. 331. 273 p. 
1968. Suggested guide for the use of insecti- 
cides to control insects affecting crops, livestock, house- 
holds, stored products, forests, and forest products 
— 1968. U.S. Dep. Agr. Agr. Handb. 331 (Rev.). 273 p. 
. VAN DEN Boscn, R. 1956. Parasites of alfalfa aphid. 
Calif. Agr. 10(10): del 5 -allus, 
1957. The spotted alfalfa aphid and its para- 
sites in the Mediterranean region, Middle East, and East 
Africa. J. Econ. Entomol. 50(3) :352-356. refs, 
H. T. Reynoxps, and E. J. Dietrick. 1956. 
Toxicity of widely used insecticides to beneficial insects 
in California cotton and alfalfa fields. J. Econ. Entomol. 
49 (3) :359-363. illus. refs. 
oo, fy I. Scrrincer, and E. J. Derrick. 1957. 
Imported parasites established. Calif. Agreed] (7). P1192: 
maps. 
plwsuos LAGEN. and Js K: 
Hottoway. 1959. The colonization and establishment of 
imported parasites of the spotted alfalfa aphid in Cali- 
fornia. J. Econ. Entomol. 52(1):136-141. illus. refs. 
maps. 
, and I. M. Harr. 1959, 
The role of imported parasites in the biological control 
of the spotted alfalfa aphid in southern California in 
1957. J. Econ. Entomol. 52(1):142-154. illus. refs. 
=). Har, and B. 
PurTLER. 1964. Studies on succession, distribution, and 
phenology of imported parasites of T herioaphis trifolit 
(Monell) in southem California. Ecology 45(3) :602- 
621. illus. refs. maps. 
————., and V. M. Stern. 1962. The integration of 
chemical and biological control of arthropod pests. 
Annu. Rev. Entomol. 7:367-386. refs. 
Warren, L. O., H. P. Boxes, J. E. Roperrs, and C. 
Lincotn. 1956. The spotted alfalfa aphid. ‘Arkansas 
Farm Res. 5(2):4. maps. 
Wecorex, W., and T. Grexa. 1968. Virus diseases 
transmission of legume forage plants of aphids. (In 
Polish-English summary). Pr. Nauk. Inst. Ochr. Rosl. 
10(2) :29-51. illus. refs. 
, and M. Ruszxtewicz. 1968. Investigations 
upon the aphids fauna of legume forage plants. (In 
Polish-English summary). Pr. Nauk. Inst. Ochr. Rosl. 
10(2) : 7-27. illus. refs. maps. 
Wison, M. L., B. A. Metron, and C. E. Watson. 1959. 
Zia alfalfa. N. Mex. Agr. Exp. Sta. Bull. 435. 14 p. illus. 
- Younc, W. R., and R. A. Papriza. 1957. The spotted 
alfalfa aphid, Therioaphis (Pterocallidium) maculata 
(Buckton ) in Mexico. Bull. Entomol. Soc. Amer. 3(3) : 
31-32. 
. ZetTLER, F. W. 1967. Winged aphids caught on traps 
in bean fields in central New York. J. Econ. Entomol. 
60(5) : 1320-1323. illus. refs. 
, and R. E. Wirxinson. 1965. Intraseasonal 
abundance of aphid species trapped in an area where 
Spread of bean common mosaic virus occurs. Phyto- 
pathology 55(10) : 1085. 
Appendix — USDA Cooperative 
Economic Insect Reports 
1954. 
1990): 
ERY 
1958: 
1959: 
1960. 
. Vol. 6(1):3, 11, 15, 22; 
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11 
