86 MISC. PUBLICATION 198, U.S. DEPT. OF AGRICULTURE 
Troop, J.—Continued. (1095) 
HESSIAN FLY SITUATION. Purdue Agr. 14: 341. 1920. 
Brief report of decrease in 1919 with suggestions on preventives. 
TROWBRIDGE, P. F. (1096) 
EXPERIMENT STATION PROGRESS. REPORT FOR THE BIENNIUM, JULY 1, 1923, TO 
JUNE 30, 1925. N.Dak. Agr. Expt. Sta. Bull. 194: 60, 1926. 
Hessian fly, 1926 injury caused by supplementary brood; mention of 
attempt to correlate fly abundance with rainfall; evidence not conclusive. 
TuckER, E. S. (1097) 
ABOUT SOME INSECTS AND INSECT BOOKS FOR THE FARMER—GRAIN-LICE AND 
HESSIAN FLIES. Kans. Farmer 43: 147-148, illus. 1905. 
Description of fly. 
TuRNER, A. F. (1098) 
AGAINST THE HESSIAN FLY. Farmers’ Mail and Breeze 46 (27): 5. 1916. 
Letter from correspondent making appeal for cooperation in fly control. 
099) 
1 
TO REDUCE FLY INJURY. Farmers’ Mail and Breeze 46 (29): 16. 1916. 
Defends recommendations of the Kansas Agricultural College on fly 
control. 
TURNER, H. S. (1100) 
AGRICULTURAL PROSPECTS—REVERSED. Amer. Farmer 5: 79-80. 1823. 
Destruction of crops by fly. 
Turner, W.F. See Lewis, A. C. 
TycHo BRAKE. (1101) 
HESSIAN FLY. Farmers’ Cabinet 5: 218-219. 1841. 
Controversy on control measures. 
TYTLER, J. (1102) 
HESSIAN FLY. Encyclopaedia Britannica, Ed. 3 (8): 489-495. 1797. 
Habits and effect on grains; origin and spread; importation of American 
wheat into Great Britain forbidden by proclamation; citation on information 
obtained by Privy Council, and which led to said proclamation. 
UNITED STaTES DEPARTMENT OF AGRICULTURE. (1103) 
HESSIAN FLY, WHEAT’S WORST ENEMY, LIKELY TO COME THIS YEAR IN IN- 
CREASED HORDES. U.S.Dept.Agr., Weekly News Letter 6 (36): 16, illus. 
1919. 
Increase in infestations; origin, description, and habits; grains attacked; 
distribution; reprint of poster on control. 
~(1104) 
SAFE TIME FOR SOWING WHEAT HELPS HALT THE HESSIAN FLY. U.S.Dept.Agr., 
Weekly News Letter 7 (6): 1-2. 1919. 
Origin; outbreaks; safe sowing dates affected by local conditions; con- 
trol; no ‘‘fly-free wheat.” 
(1105) 
HESSIAN FLY THREATENS 1920 WINTER WHEAT CROP. U.S.Dept.Agr., Weekly 
News Letter 7 (26): 3. 1920. 
Outbreak in the Mississippi Basin; damage feared in the East; control. 
(1106) 
ONCE MORE THE HESSIAN FLY APPEARS IN GROWING WHEAT. U.S.Dept.Agr., 
Weekly News Letter 8 (84): 1. 1921. 
Infestation east of Appalachian Mountains; fly-free date for sowing. 
Vaux, J., and Jacos, J. (1107) 
[HESSIAN FLY.] Pa. Packet and Daily Advertiser no. 2980, p. 2. 1788. 
Letter from Providence, Montgomery County, Pa., August 16, 1788; 
various methods of control of fly by farmers; habits of fly; experiences and 
opinions of various farmers and millers regarding control. 
