CoKNELL University, 

 Ithaca, N. Y., March 1, 1895. 



The Honor able Commissioner of Agriculture^ Albany : 



Sir.— The following sketch of experiments in spraying orchards 

 is submitted for publication under Section 87, Chapter 675, Laws of 

 1894. This bulletin may be considered to be a complement to No. 

 84, upon Apple Failures in Western ISTew York. The general con- 

 clusions as to the fundamental causes of the recent failures of apples 

 are essentially alike in the two bulletins, but they were arrived at 

 independently by Mr. Lodeman and myself. It is now established 

 that spraying with Paris green and Bordeaux mixture is often capa- 

 ble of rescuing a crop of apples and other fruits from the ravages of 

 insects and fungi ; but it is equally well established that spraying 

 sometimes avails little. In other words, some of the failures of 

 orchards to bear are due to insects and diseases, and other failures 

 are due to causes which lie back of these attacks, probably to lack of 

 available food supply. The inference is plain ; orchards should be 

 both fed and sprayed. 



L. H. BAILEY. 



