The Ciirculio. 35 



vigor the following spring. Should this disease attack the orchard two 

 or three years in succession the trees are so weakened that they bear 

 very little fruit and many of them die. 



REMEDIES. 



On a recent trip through the middle states the writer noticed that 

 cherry orchards which had been persistently sprayed with Bordeaux 

 mixture were in the most vigorous possible condition, thrifty vigorous 

 growth, healthy foliage, and an aundant crop of fruit. This indicates 

 that it is entirely practicable by judicious spraying to keep this fungus 

 disease in check and to keep our orchards in fruitful condition. At 

 Vincennes, Indiana, H. M. Simpson & Sons are very extensively engaged 

 in commercial orcharding. They make large use of Bordeaux mixture 

 in spraying their orchards for the control of all fungus diseases attack- 

 ing either cherry or apple trees. 



THEIR METHOD. 



Before the buds open in the spring they spray with sulphate of 

 copper. Before the trees bloom they spray with Bordeaux mixture. 

 When the cherries are about the size of small peas they again spray 

 with Bordeaux. Between this time and the picking of the crop they do 

 not spray for fear some of the poison migh* remain attached to the 

 fruit. After the crop has been marketed they again spray with Bor- 

 deaux mixture. 



The writer would like to suggest from his own experience in this 

 work, that should the summer be wet or showery, it is wise to spray 

 again three weeks later. In the growing of cherry trees in nursery row 

 it has been found very advantageous to spray the trees two or three 

 times a month to keep down shot hole fungus, to keep the foliage in 

 perfect health, and to secure the most vigorous possible growth. Should 

 cherry trees in nursery row shed their leaves in July or August they 

 may not winter well and would be found to be weak the following 

 spring. Frequent surface culture helps to secure such vigorous growth 

 as will materially assist in the production o'f healthy foliage. Heavy ap- 

 plication of fertilizers supply plant food in such abundance as to be of 

 marked assistance in the growth of healthy foliage. 



HUMIDITY. 

 Twenty years ago when the writer attended horticultural meetings 



