210. 
211. 
212. 
m3. 
214. 
215. 
216. 
217. 
2.8. 
Zo. 
220. 
221. 
ae. 
“20. 
oar. 
ps 
226. 
ae). 
228. 
ca). 
; , and . 1950. Responses of 
com varieties to chemical control of corn rootworms. 
Nebr. Agr. Exp. Sta. Annu. Rep. 63:81-82. 
eee Mi. Muna, and R: E. Hr. 1949. Com 
rootworm control and distribution. Nebr. Agr. Exp. Sta. 
Annu. Rep. 62:67. 
; , and » 1949. Corn ‘root- 
worm control in Nebraska. Univ. Nebr. Agr. Ext. Serv. 
E.C. 1506. 4 p. illus. 
Horrner, J. L. 1925. Colorado corn  root-worm, 
Diabrotica virgifera Lec. In: 16th annual report of the 
State Entomologist of Colorado for 1924. Colo. State 
Entomol. Circ. 47:17-18. illus. 
Hormeyer, K. 1964. How to check for corn rootworms. 
Wallaces’ Farmer & Iowa Homestead 89(11) :38. illus. 
. 1964. What farmers plan to do for corn root- 
worms. Wallaces’ Farmer & Iowa Homestead 89(8): 
52-53. 
Hovpen, P. G. 1916, The corn root worm pest. Breeder’s 
Gaz. 70(8) : 271-272. illus. 
Horn, G. H. 1893. The Galerucini of Boreal America. 
Trans. Amer. Entomol. Soc. 20:57-136. 
Howarp, C. W. 1916. Three important insect pests. J. 
Econ. Entomol. 9(1) :236. 
Howe, W. L., and M. P. Brirron. 1970. Some observa- 
tions of the northern corn rocotworm and root rot damage 
complex in field corn. Proc. N. Cent. Br. Entomol. Soc. 
Amer. 25(2) :95-96. illus. refs. 
—________, and B. W. Georce. 1966. Corn rootworms. Jn: 
C. N. Smith, Ed., Insect colonization and mass produc- 
tion. Academic Press Inc., New York. p. 367-383. illus. 
refs. 
, and D. E. Kuuiman. 1968. Greenhouse 
studies of soil type, moisture and compactness affecting 
oviposition of the western corn rootworm. Proc. N. Cent. 
Br. Entomol. Soc. Amer. 23:22. 
fee i E OrTMAN, and B. W. Gerorce. 1963. 
Observations of the northern and western com root- 
worms in South Dakota. Proc. N. Cent. Br. Entomol. 
Soc. Amer. 18:83. 
, and J. SHaw. 1972. Soil sampling techniques 
for estimating rootworm egg populations. Proc. N. Cent. 
Br. Entomol. Soc. Amer. 27: 123-127. illus. refs. 
Hunt, T. F. 1886. Partial economic bibliography of 
Indian corn insects. Jn: Illinois State Entomologist. Mis- 
cellaneous essays on economic entomology. H. W. 
Rokker, Springfield, Ill. p. 57-126. 
Isrry, D. 1942. Insect problems resulting from changes 
in agriculture in Arkansas. J. Econ. Entomol. 35(4) :473- 
evi; refs. 
Isuma, M., and P. A. Daum. 1965. Metabolism of 
benzene hexachloride isomers and related compounds in 
vitro. I. Properties and distribution of the enzyme. J. 
Econ. Entomol. 58(3) :383-392. illus. refs. 
Ivanorr, S. S. 1933. Bacterial wilt of corn. Phytopathol- 
ogy 23(1):18. 
JANSEN, W. P., and R. Srapres. 1971. Specificity of 
transmission of cowpea mosaic virus by species within 
the subfamily Galerucinae, family Chrysomelidae. J. 
Econ. Entomol. 64(2) :365-367. illus. refs. 
Jantz, O. K. 1968. Dasanit insecticide for superior con- 
trol of corn rootworm. Down to Earth 23(4) : 22-26. 
illus. refs. 
——_____.. 1969. Dasanit insecticide performance during 
1968 for corn rootworm control. Down to Earth 25(1): 
32-35. illus. refs. 
. Jounson, R. R. 1969. Corn rootworm larval damage as 
PSE 
24.0; 
241, 
242; 
243; 
248. 
249. 
250. 
Zo: 
eyes 
a measure of percent lodge potential. Proc. N. Cent. Br. 
Entomol. Soc. Amer. 24(2) : 135-137. illus. refs. 
2. Kanracx, B. H. 1964. Corn rootworm control in South 
Dakota — 1964. S. Dak. State Coll. Agr. Ext. FS-180. 
4 p. maps. 
—______. 1964. Western corn rootworm in South Da- 
kota. Crop Qual. Counc. Ext. Conf. Rep. 1964:16-17. 
—_______. 1965. Western corn rootworm in South Da- 
kota. Proc. N. Cent. Br. Entomol. Soc. Amer. 20:62-63. 
maps. 
—______. 1967. Corn rootworm control. Ext. Serv. Rev. 
38(1) :6-7. illus. 
—_______, and R. J. Watsrrom. 1965. Com rootworm 
control in South Dakota, 1965. S. Dak. State Univ. Coop. 
Ext. FS-263. 4 p. maps. 
, et al. 1968. Corn rootworm control in South 
Dakota with notes on wireworm and cutworm control. 
S. Dak. State Univ. Coop. Ext. FS-428. 6 p. 
. Kaurmann, D. L. 1966. A study of the field behavior of 
adult Diabrotica virgifera Lec. and Diabrotica longi- 
cornis (Say) (Coleoptera: Chrysomelidae). Ph.D. Diss., 
Kansas State University, Manhattan. 57 p. illus. refs. 
maps. 
Kirk, V. M., C. O. Carxins, and F. J. Post. 1968. Ovi- 
position preferences of western corn rootworms for vari- 
ous soil surface conditions. J. Econ. Entomol. 61(5) : 
1322-1324. illus. refs. 
Krysan, J. L. 1972. Embryonic stage of Diabrotica 
virgifera (Coleoptera: Chrysomelidae) at diapause. Ann. 
Entomol. Soc. Amer. 65(3) : 768-769. illus. refs. 
Kuutman, D. E. 1970. Bionomics of Diabrotica longi- 
cornis (Say) and Diabrotica virgifera LeConte (Coleop- 
tera: Chrysomelidae). Ph.D. Diss., University of Illinois. 
[22eprilluseréts: 
eee VV le Howreand: WH. Lick MANN 61070; 
Development of immature stages of the western corn 
rootworm at varied temperatures. Proc. N. Cent. Br. 
Entomol. Soc. Amer. 25(2) :93-95. illus. refs. 
Lanpis, W. R. 1971. The effect of carbofuran on stalk 
rot of corn. Plant Dis. Rep. 55(7) :634-638. illus. refs. 
. Lawson, D. E. 1964. Rootworm egg distribution in corn 
fields. Proc. N. Cent. Br. Entomol. Soc. Amer. 19:92. 
. 1967. Prediction of corn rootworm infestation 
by egg sampling. Proc. N. Cent. Br. Entomol. Soc. Amer. 
22202: 
——. 1968. Predicting rootworm infestations by soil 
sampling for eggs. Proc. N. Cent. Br. Entomol. Soc. 
Amer. 23(2)¢112. illus: 
, and G. T. Werxman. 1963. Sampling tech- 
niques for eggs of Diabrotica vergifera LeC. Proc. N. 
Cent. Br. Entomol. Soc. Amer. 18:99. 
, and . 1966. A method of recovering 
eggs of the western corn rootworm from the soil. J. Econ. 
Entomol. 59(3) :657-659. illus. 
LeConte, J. L. 1865. On the species of Galeruca and 
allied genera inhabiting North America. Proc. Acad. 
Natur. Sci. Philadelphia 17:204-222. refs. 
. 1868. New Coleoptera collected on the survey 
for the extension of the Union Pacific Railway, E. D. 
from Kansas to Fort Craig, New Mexico. Trans. Amer. 
Entomol. Soc. 2:49-59. 
Litty, J. H. 1951. Rootworms are yield robbers. Suc- 
cessful Farming 49(4) :46, 185-187. illus. 
. 1954. Insecticidal control of the corn root- 
worm in 1953. J. Econ. Entomol. 47(4) :651-658. illus. 
refs. 
