THE DISEASES OF FRUITS. 241 



tissues of the root and causing the development of the galls. 

 Careful experiments were made which showed that the disease 

 was easily communicable, thus demonstrating the great neces- 

 sity of avoiding its introduction into the nursery or orchard, 

 especially since no very effective remedy for it was found. It 

 seems wise, therefore, for all growers to reject all peach, 

 plum, apple, or other plants whose roots are in any degree 

 malformed. The fact that the trouble is underground adds 

 much to the difficulty of checking it, and therefore all diseased 

 roots should be excluded at the time the trees are set. 



In conclusion, it is remarked that only the leading sorts of 

 fungi have been considered, but enough, it is hoped, is pre- 

 sented so that the fruit grower will find some clew to any 

 disease that is serious. It may be said, as a final word, that 

 there are several experts at work upon fungous diseases, and 

 further information upon the subjects, herein considered, may 

 be obtained of the division of Physiology and Vegetable Pathol- 

 ogy, U. S. Department of Agriculture, Washington, D. C., or 

 through the Experiment Stations of the various States. 



The fruit-grower should not hesitate to make complaint and 

 call for information through the avenues created by the Gov- 

 ernment for the special help of the crop-growers of this coun- 

 try. It may be that an old and well-known enemy has made 

 its first appearance in a community, and methods for its treat- 

 ment are well worked out. Should it be a new disease, or of 

 recent importation from some other country, it then becomes 

 of special interest to the expert as it is to the plaintiff, and 

 it is an advantage to all that the call is made for help. In 

 this age of the world, all obstacles to successful fruit-growing 

 as far as possible should be removed. It is argued that the 

 person who is sufficiently wide awake to observe fungous 

 troubles as they arrive and strive to remove them at the out- 

 set will not fail because of oversight in selection of orchard 

 site, or varieties of fruits, through careless pruning, neglect 

 of thinning, improper feeding, or any such thing. He will do 

 his best and take pride in his work along with the profits as 

 they come to him. 

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