I 1 """ 1 MAINE STATE COLLEGE 



disadvantage. It was necessary to go to Kennebec county to 

 find suitable orchards which were available. Much credit is due 



to the parties who have given the use of their orchards and have 

 so faithfully assisted in the work. Special credit is due Messrs. 

 Charles S. Pope of Manchester, W. P. Atherton of Hallowell. 

 C. E. Moore and F. M. "Woodward of TTinthrop. These gentle- 

 men all gave their time freely, and their intelligent assistance is 

 appreciated. 



There were two main objects in the field work of the present 

 season : first, to combat the codling moth ; and second to pre- 

 vent, if possible, the ravages of the apple scab. 



I. Codling Moth. (Carpocapsa pomoneUa). 



For a number of years several prominent experimenters and 

 many progressive orchardists, have advocated the use of the 

 arsenites. Paris green or London purple, to hold this pest in 

 check. The experiments of Cook. Goff, Gillette and others would 

 seem to leave little doubt as to the value of this treatment. How- 

 ever, for our own satisfaction, and to bring the matter more 

 forcibly before the people of the state, the following work was 

 undertaken : 



1. Is Spraying with Paris Green an Effective Remedy? The 

 first question asked by an orchardist. regarding any remedy or pre- 

 ventive, is: Does it prove effective? To answer this question, 

 trees were sprayed in the orchards of Messrs. W. P. Atherton, of 

 Hallowell: Charles S. Pope, of Manchester, and C. E. Moore of 

 Winthrop. 



In Mr. Atherton'" s orchard, a row of Rhode Island Greenings, 

 and a row of Hubbardston Nonesuch were selected for the trial. 

 Four Greening trees were sprayed with Paris green in the propor- 

 tion of 1 pound to 250 gallons of water: an equal number received 

 1 pound to 300 gallons : and three trees were left unsprayed as 

 checks. Of the Hubbardstons, one tree was sprayed with the 

 mixture of 1 pound to 250 gallons : two. in the proportion of 1 

 pound to oOO 2fEo:>. :,:. i : ■"■ - : -:- ..:: un-vr. y -■.".. 



Two applications were made. The first one. June 11, just as 

 the last blossoms were falling, was under the personal supervision 

 of the writer. The second was made by Mr. Atherton two weeks 

 later. The weather was hot and dry at Lhe time of each 

 application. 



