FRUIT TREES 

 AND THEIR ENEMIES 



WITH A 



SPRAYING CALENDAR 



SPENCER U. PICKERING, M.A., F.R.S. 



DIRECTOR OF THE WOBURN EXPERIMENTAL FRUIT FARM 



FRED. V. THEOBALD, M.A. 



VICE-PRINCIPAL AND ZOOLOGIST OF THE SOUTH-EASTERN AGRICULTURAL COLLEGE 



Price is. 6d. net ; Postage zl^d. 



LONDON 



SIMPKIN, MARSHALL, HAMILTON, KENT & CO., Ltd. 



1908 



