DUSTING AND SPRAYING EXPERIMENTS OF 1918 AND 1919. 



TABLE I. RESULTS WITH BALDWIN AT MORRICE, 1918. 



TABLE II. RESULTS WITH STARK AT MORRICE, 1918. 



ground. For insects, other than coddling moth, all materials gave 

 nearly complete control. All materials gave almost perfect control of 

 coddling moth. The amount of injury 27.5% on .the check tree was 

 high enough for a good comparison. 

 The tabulated results of all counts are given in Tables I. and II. 



COMPARISON OF DUSTING WITH SPRAYING 

 AND CALCIUM ARSENATE WITH LEAD ARSENATE AT MUIR 



Work was continued at Muir in the Northern Spy orchard belonging 

 to Mr. Oscar Branian. The principal object of this work was to get 

 further information as to the effect of the different materials on the 

 foliage. 



