EXCISIONS AND RESULTS. 25 



RESULT. August 16, 1883. The tree is full of peaches, and three-fourths of them 

 are now ripe and red-spotted. The proper time of ripening of this variety in this 

 locality is about the middle of September. Only two small limbs bear green, healthy 

 fruit. The foliage of the affected limbs is yellowish, and they bear a few small dis- 

 eased shoots. 



(2) September 16, 1887. Variety not recorded. This tree bore no fruit, but dis- 

 eased sprouts had developed on one limb, and to a greater extent than on No. 1. This 

 limb was cut away. The rest of the tree seemed to be healthy. 



KESULT. August 16, 1888. The tree is badly diseased. It now bears premature 

 fruit on all parts. Also on all of the main limbs there are many diseased shoots, and 

 some of them are large. 



All of the diseased trees, except these two, were removed in 1887. 



B. Orchard of James W. Green, Magnolia, Delaware. Trees set 5 years ; all cases of 

 1887 ; selected out of several hundred as being freest from symptoms of yellows. In 

 all of these trees the disease appeared to be localized on one or more of the several 

 main limbs. In fact, I was at great pains to select trees which showed the prema- 

 ture poaches and feeble shoots only upon a few limbs. Many otherwise promising 

 trees were rejected because of slight symptoms upon the base of the main limbs. In 

 several cases there were yet no diseased sprouts. In none were there very many. In 

 some of the trees healthy shoots of that summer had grown out between the diseased 

 parts and the point of amputation. The limbs were sawed off smoothly and the 

 stumps were painted. Whenever a small diseased branch joined a larger healthy 

 limb I severed both, cutting below next to the body of the tree in order to be more 

 certain of success. In most cases, from one-third to one-half of the tree was removed. 

 All that was left, and much of what was cut away, appeared to be perfectly healthy. 

 In some trees the symptoms of disease were more pronounced than in others, but the 

 final results were the same. 



(1) September 15, 1887. Variety, Beers' Smock. Two main limbs were removed; 

 five of the same size were left. 



RESULT. August 17, 1888. The tree now bears premature fruit on every main 

 limb. It also bears diseased shoots. Some of the smaller branches bear a few sound 

 peaches. 



(2) September 15, 1887. Variety, Beers' Smock. Three limbs were removed; three 

 were left. 



RESULT. August 17, 1888. The tree bears many peaches, most of which are pre- 

 mature. Upon two of the three main limbs, some branches only still bear green, 

 healthy peaches. The trunk and limbs also bear diseased shoots. 



(3) September 15, 1887. Variety, Beers' Smock. One small limb, 1 inches in 

 diameter at the base, was removed ; four large limbs with many branches were left. 



RESULT. August 17, 1888. The tree is now badly diseased in every limb ; and 

 bears almost nothing but premature fruit, i. e., there are not over 40 green peaches 

 on the entire tree. Diseased shoots have also grown from every limb and from the 

 trunk near the earth. 



(4) September 15, 1887. Variety, Beers' Smock. A smaller tree than No. 3. One 

 limb was removed, two were left. 



RESULT. August 17, 1883. One of the two main limbs bears green, healthy 

 peaches ; the other bears mixed fruit. That on two branches is premature; that on 

 three others is healthy. There are no diseased shoots. 



(5) September 15, 1887. Variety, Beers' Smock. A large, fine tree. One limb was 

 removed, four limbs were left. 



RESULT. August 17, 1888. The tree is now full of fruit and at least one-half of it 

 is premature. The diseased peaches are not confined to any special part but are 

 borne on all of the main limbs. There are also characteristic, feeble shoots on the 

 trunk. 



(6) September 15, 1887. Variety, Beers' Smock. A large tree. One limb was 

 removed, four were left. 



