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CIRCULAR 685, U. S. DEPT. OF AGRICULTURE == == 
ELLENWOOD, C. W., and Howtett, F. S. eee ‘a 
1942. PREHARVEST SPRAYS IN 1940 AND 1941. Ohio Agr. Expt. Sta. Bimo. — 
Bul. 27(216) : 100-106. 
and How ert, F. S. a 
1943. PREHARVEST SPRAYS IN OHIO IN 1942. Amer. Soc. Hort. Sci. Proc. — 
43: 193-197. i 
Enzig, J. V., and SCHNEIDER, G. W. 
1941. SPRAYING FOR CONTROL OF PREHARVEST DROP OF APPLES IN NEW MEXICO. 
Amer. Soc. Hort. Sci. Proc. 38: 99-103. 
GARDNER, F. E., MARTH, P. C., and BATJER, L. P. 
1939. SPRAYING WITH PLANT GROWTH SUBSTANCES FOR CONTROL OF THE PRE- 
HARVEST DROP OF APPLES. Amer. Soc. Hort. Sci. Proc. 36: 415-428. 
GREVE, E. W., Kapow, K. J., and Guy, H. G. 
1940. THE PREVENTION OF PREHARVEST DROP OF APPLES BY SPRAYING. Pen- 
insula Hort. Soe. [Del.] Trans. 54: 53-61, illus. 
HALLER, M. H. 
1943. EFFECT OF PREHARVEST SPRAYS ON STORAGE QUALITY OF APPLES. Amer. 
Soc. Hort. Sci. Proc. 43: 207-210. 
HEsseE, C. O., and DAVEY, A. FE. 
1942. EXPERIMENTS WITH SPRAYS IN THE CONTROL OF FRUIT DROP OF APRICOT 
AND PEACH. Amer. Soc. Hort. Sci. Proc. 40 : 55—62, illus. 
HorrMaNn, M. B. ; 
1939. THE PRE-HARVEST DROP OF MATURE MCINTOSH APPLES AS INFLUENCED 
BY APPLICATIONS OF NITROGEN CARRYING FERTILIZERS. Amer. Soc. 
Hort. Sci. Proc. 86: 438-442. 
1941. CONTROLLING THE PRE-HARVEST DROP OF APPLES. N. Y. (Cornell) Agr. 
Expt. Sta. Bul. 766, 18 pp., illus. 
1941. SOME RESULTS IN CONTROLLING PRE-HARVEST DROP OF MCINTOSH APPLES 
(PRELIMINARY REPORT). Amer. Soc. Hort. Sci. Proc. 38: 97-98. 
— EDGERTON, L. J., and VAN DoreEN, A. : 
1942. SOME RESULTS IN CONTROLLING PRE-HARVEST DROP OF APPLES. Amer. 
Soc. Hort. Sci. Proce. 40: 35-88. 
HorrMan, M. B., VAN Doren, A., and Epcrerton, L. J. 
1943. FURTHER TESTS ON THE METHODS OF APPLYING NAPHTHALENE ACETIC 
ACID FOR CONTROL OF THE PRE-HARVEST DROP OF MCINTOSH APPLES. 
Amer. Soc. Hort. Sci. Proc. 48: 203-206. 
Kapow, K. J., and HoPPERSTEAD, §. L. 
1941. THE COMPATIBILITY OF FRUIT DROP CHEMICALS. Peninsula Hort. Soe. 
[Deil.] Trans. 55: 32-84. 
MUuRNEEK, A. E. 
1939. REDUCTION AND DELAY OF FRUIT ABSCISSION BY SPRAYING WITH GROWTH 
SUBSTANCES. Amer. Soc. Hort. Sci. Proc. 36: 4382-484. 
Mourrpry, L. M. 
1542. FURTHER STUDIES WITH PRE-HARVEST SPRAYED MCINTOSH APPLES. 
Amer. Soc. Hort. Sci. Proc. 40: 42-44, illus. 
OVERHOLSER, E. L., OVERLEY, &. L., and ALLMENDINGER, D. F. 
1643. THREE-YEAR STUDY OF PRE-HARVEST SPRAYS IN WASHINGTON. Amer. 
Soc. Hort. Sei. Proce. 43: 211-219. 
SourHwick, L. 
1959. SPUR NITROGEN AND PRE-HARVEST MCINTOSH DROP. Amer. Soe. Hort. 
Sci. Proce. 36: 435—48T. 
1942. FURTHER STUDIES ON THE CONTROL OF PREHARVEST DROP OF MCINTOSH. 
Amer. Soc. Hort. Sci. Proc. 40: 39-41. 
1943. COMPARATIVE RESULTS WITH SPRAYS AND DUSTS IN CONTROLLING THE 
PREHARVEST DROP OF APPLES. Amer. Soc. Hort. Sci. Proc. 43: 199- 
202. 
and SHaw, J. K. : 
1941. SPRAYING TO CONTROL PRE-HARVEST DROP OF APPLES ESPECIALLY IN RELA- 
TION TO MCINTOSH. Mass. Agr. Expt. Sta. Bul. 381. 16 pp., illus. 
U. S. GOVERNMENT PRINTING OFFICE: 1943 
For sale by the Superintendent of Documents, U. S. Government Printing Office 
Washington, D.C. - Price 5 cents 
