122 Agkicultural Experiment Station^ Ithaca, N. Y. 



copper compounds the lime must be changed from the hydrate into 

 the carbonate. This may be of advantage during seasons of fre- 

 quent showers for in such cases less of the copper would be washed 

 from the leaves and lost. 



After our experience of 1894 it would appear to be very advisable 

 that an excess of lime be used in making the Bordeaux mixture. 

 But this excess is not put in for the purpose of lessening the waste 

 of dissolved copper, but that foliage and fruit may not be injured 

 by its presence. The conditions of dry climate existing in Italy^ 

 are evidently very different from those found in America, for here 

 dissolved copper is injurious while there it is desired. 



THE W^OEK DONE ELSEWHERE. 



By station worlters. — The results obtained by Munson * indicate 

 that a combination of the Bordeaux mitxiire and of Paris green was 

 more effective in preventing apple scab than w^as either the Bordeaux 

 mixture used alone, or eau celeste. The result shows that Paris 

 green possesses fungicidal properties, but in this case they are not so 

 strongly marked as has been reported from other stations. 



Stinson * has found that when apple trees are thoroughly sprayed 

 the total number of windfalls is considerably reduced. The greater 

 part of those from the check tree fell early in the season, while 

 from the sprayed trees they fell mostly when large enough to use. 

 At the time of the harvesting, the spi-ayed trees yielded nearly 

 twice as much fruit as that obtained from the unsprayed trees. The 

 season's work (1893) goes to show that three or four treatments are 

 sufficient to control apple scab, and it was also noticed that trees 

 which were " sprayed but twice gave about the same per cent, free 

 from scab as those sprayed three times, but the apples were not so 

 large as those sprayed three times." 



By growers. — T. H. Walker, Ripley, sprayed R. I. Greening,. 

 Baldwin, Twenty-ounce, N. Spy, and a seedling variety, with Paris 

 green and the Bordeaux mixture. The apples were more wormy 

 than was expected, the trees showing from fifty to ninety per cent, of 

 affected fruit. This was undoubtedly very largely due to the fact 

 that the first application of Paris green was not made until May 23, 

 twelve days after the blossoms fell from the trees. A second ap- 



* Maine Agile. Exp. Sta. Bull. 8, Second Series. 

 "Arkansas Agric. Exp. Sta. Bull. 26. 



