Report of the Hortioultdeist. 403 



pear to have received treatment. Thaxter reports* that by the 

 use of Bordeaux mixture, 1 to 3 ^ formula, some cherry trees 

 were protected from the leaf-spot in 1890, while corresponding 

 trees which were not so treated lost their foliage in July. The 

 time of the applications and their number is not definitely stated. 



Fruit Rot. 



Craig + rejjorts that in 1894 a much weaker Bordeaux mixture 

 than that used by Thaxter, namely, a 1 to 12 formula, was used 

 against the fruit rot with good results. A Yellow Spanish tree 

 sprayed May 1 with Bordeaux mixture and three limes after- 

 wards with the same mixture, combined with Paris green, 

 yielded 90 pounds of sound fruit, while a corresponding un- 

 treated tree yielded but 30 pounds. Also, in another orchard, a 

 tree was sprayed May 10, May 26 and June 4 with Bordeaux 

 mixture and Paris green, using one ounce of Paris green and 

 one pound of copper sulphate for each twelve gallons of the 

 mixture. July 4 it was sprayed with ammonical solution of 

 copper carbonate. This tree yielded 130 pounds of fruit, while 

 the corresponding unsprayed tree yielded but 17 pounds. 



Objects oi' Treatment. 



In spraying cherries it is desirable to prevent the leaf-spot, 

 the fruit rot, the mildew of the leaves, and tjae attacks of the 

 curculio, an insect which causes wormy cherries. Some experi- 

 ments with cherries, similar to those with plums described on 

 page 391, were planned in 1895, to determine if possible the com 

 parative values of Bordeaux mixture and eau celeste soap mix- 

 ture as preventives of the fungous troubles just named, but no 

 attempt was made in these experiments to prevent the attacks 

 of the curculio. 



•Thaxter, Roland. Rep. Conu. Sta. 1890: 102. 



f Craig, John. Report Horticulturist. Canada Dept. Agr. 1894: 112. 



