16 MISC. PUBLICATION 198, U.S. DEPT. OF AGRICULTURE 
CaRTWRIGHT, W. B. (182) 
HOST PLANT SELECTION BY HESSIAN FLY (PHYTOPHAGA DESTRUCTOR SAY). 
Jour. Econ. Ent. 15: 360-363, illus. 19292. 
Report on two sowings of various grains at Centralia, Ill., to determine 
relative attractiveness to flies for oviposition, and to obtain data on larval 
infestations. 
(183) 
SEXUAL ATTRACTION OF THE FEMALE HESSIAN FLY (PHYTOPHAGA DESTRUCTOR 
SAY). Canad. Ent. 54: 154-155. 1999. 
Report on observations. 
(184) 
DELAYED EMERGENCE OF HESSIAN FLY FOR THE FALL OF 1922. Jour. Econ, 
Ent. 16: 432-435. 19923. 
Reports on delayed emergence in southern Illinois and nearby areas 
caused by abnormal conditions of temperature and rainfall; economic aspect 
of delayed emergence. 
and Larrimer, W. H. (185) 
DETERMINATION BY THE 5-SQUARE-YARD METHOD OF THE YIELD OF WHEAT 
PLOTS USED IN STUDIES OF THE HESSIAN FLY, PHYTOPHAGA DESTRUCTOR 
Say. Jour. Agr. Research 32: 1045-1048. 1926. 
_ Introduction; statistical formulas; 5-square-yard method; 5-square-yard 
and other small-area harvesting methods compared ; Summary. 
BLANCHARD, R. A., and Witson, C. C. (186) 
NOTES FOR 1932 ON CEREAL AND FORAGE INSECTS IN CALIFORNIA. Calif. 
Dept. Agr. Monthly Bull. 22: 156. 1933. 
Status; infestations; experimental tests of resistant varieties of wheat. 
See also Larrimer, W. H. 
Cuapais, J. C. (187) 
A BRIEF STUDY OF A FEW CECIDOMYIIDAE. Quebec Soc. Protect. Plants 
\ from Insects and Fungus Diseases Ann. Rpt. 12: 28-31, illus. 1919-20. 
Control of fly in Canada. 
CuapMan, I. (188) 
SOME OBSERVATIONS ON THE HESSIAN FLY; WRITTEN IN THE YEAR 1797. 
(Read August 14, 1820.) Mem. Phila. Prom. Agr. Soc. 5: 143-153. 1826. 
Appearance and spread in New York; migrations; description of stages; 
two generations; control. 
Cuasp, W. W. See Lewis, A. C, 
CHITTENDEN, F. H. (189) 
A VARIETY OF WHEAT SAID TO BE IMMUNE FROM HESSIAN FLY. U.S. Dept. 
Agr., Div. Ent. Bull. (n.s.) 38: 107. 1902. 
Dawson’s Golden Chaff said to be immune. 
Curistig, G. I. (190) 
[HESSIAN FLY.] Purdue Agr. Ext. Rpt. 10: Mil, W921 11's 20.1999: 
Injury reduced as result of campaign in 1920, relative to the “fly free 
date”’; report on injury reduced (Rpt. 10); decrease in infestation (Rpt. 11). 
= and Rerp, dh Ji, (191) 
[HESSIAN FLY.] Ind. Agr. Expt. Sta. Ann. Rpt. 34: 22. 1921. 
Discussion of cooperative project between Federal and State workers. 
and Ruep, H. J. (192) 
DEPARTMENT OF ENTOMOLOGY—THE HESSIAN FLY. Ind. Agr. Expt. Sta. 
Ann. Rpt. 35: 29. 1922, 
Damage; report of sowing plot for experimental purposes. 
and Resp, H. J. (193) 
FIELD CROP INSECTS—HESSIAN FLY. Ind. Agr. Expt. Sta. Ann. Rpt. 36: 30. 
1923. 
Brief report on wheat-seeding plots. 
