28 THE CONTROL OF APPLE BITTER-ROT. 



Bordeaux mixture for application to the very young fruit. The mix- 

 ture used in spra3dng stone fruits (3 pounds of bluestone and 9 pounds 

 of lime to 50 gallons of water) is suggested. 



Coating of Bordeaux mixture. — The fruit from Plot 3, which 

 received its last application on Jul}" 25, was practically free from Bor- 

 deavix mixture at picking time, September 19 to 23, the coating having 

 weathered awa}'. (PL III, tig. 1.) 



The fruit from Plot 4, which received its last application on August 

 7, showed considerable Bordeaux mixture at picking time, but not 

 sufficient to attract special notice. 



The fruit from Plots 5 and 6, and, in fact, from all of the plots 

 sprayed after August 7, was thoroughh' coated with Bordeaux mix- 

 ture at picking time. (See PI. IV, fig.^ 1; PL V, tig. 2, and PL VI, 

 fig. 2.) 



The presence of Bordeaux mixture on the fruit when packed is cer- 

 tainly objectionable, but it was found that in picking, grading, and bar- 

 reling the apples most of it was rubbed off. The crop from the spraj^ed 

 trees, both in the experimental block and in Mr. Goodwin's main 

 orchard, was sold at the highest price paid for Yellow Newtown apples 

 in that section the past season, and the purchaser raised no objection 

 to the coating of Bordeaux mixture and did not require the fruit to be 



wiped. 



COMMERCIAL OPERATIONS. 



The Bureau of Plant Industr}' furnished a number of its corre- 

 spondents with suggestions for the treatment of bitter-rot, and during 

 the past season the writer visited a few of the orchards that were 

 sprayed in accordance with these suggestions, as well as others that 

 had not been properly treated. In every case where Bordeaux mix- 

 ture was applied at the proper time good results were secured. Even 

 poor spi'aying had a decidedly beneficial effect. Owing to the steep- 

 ness of the land or to some other obstacle, there were always some 

 trees left untreated or but partially sprayed, thus affording ample 

 checks with which to compare the treated trees. In most cases the 

 results were very striking, showing almost a perfect crop on the 

 sprayed trees and a loss of 75 to 100 per cent of the crop on the 

 unsprayed trees. More striking still is the fact that where only 

 one side of a tree was spra3'ed the crop on that side matured in 

 perfect condition, while the crop on the opposite side was destro3'ed 

 by bitter-rot. The writer observed this in a number of instances 

 where a fence or a steep hillside admitted of the treatment of only one 

 side of the trees. 



RESISTS IX SEVi:KAL ORCHARDS. 



Aside from the trees used in the experiment, ]Mr. W. H. Goodwin, 

 of Avon, Va., sprayed the larger j)ortion of his orchard under the 



