54 



ease soon runs its course and new leaves 

 appear. In vigorous orchards it seldom 

 injures the trees to any extent. Its most 

 serious feature is its indirect effect upon 

 the young fruit in cases of bad attacks. 

 No remedy is yet known, and even if we 

 knew one it would probably not be gener- 

 ally used as the disease is uncertain in its 

 attacks. Burning the diseased leaves ma} 7 

 be practiced in small plantations. Profess- 

 or Scribner suggests, as an experiment, a 

 spray of sulphate of iron in spring before 

 the buds swell. 



Whatever fruits ran the guantlet of the 

 curl-leaf were attacked by curculio, the 

 insect which produces the worm in the 

 fruit. This pest is becoming very abun- 

 dant and growers must persistently fight 

 it or give up the growing of peaches. It 

 is readily held in check by the familiar 

 process of jarring onto sheets. Paris green 

 at the rate of i lb. to 350 gals., applied 



Fig. 6.- Curl-Leaf of several times > beginning just after the 



blossoms fall, will undoubtedly be found 

 the Peach. r A ^ 



useful.* 



The third enemy to peach growing in New York, and by far 

 the worst one, is the yellows. The cause of this disease is not 

 definitely known, but it attacks trees of all varieties and ages 

 and under all conditions, and it spreads from orchard to orchard. 

 The only remedy is to cut out even- affected tree. This must be 

 done systematically and thoroughly, or peach culture is doomed. 

 I find that the law is not being enforced as vigorously as it ought ; 

 it can afford protection to peach growers, and no effort should be 

 spared to apply it. 



Yellows may be termed a constitutional disease. It progresses 

 somewhat slowly in the infected tree, and for that reason it is 

 usually neglected. It does not, of course, cause the falling or 

 the blasting of the flowers or fruit, but as it is becoming a serious 



^London purple should not be used on p^ach trees. Sas our Bulletin 

 XVIII, just issued, concerning the spraying of the peach, and the values 

 of various nozzles. 



