52 PEACH ROSETTE. 



however, at that time (plate xxxiv) warrants one in believing that 

 they too would have become wholly diseased long before June. 



This experiment was the more striking, because in the same field, 

 forming part of the same nursery, and separated from these five rows 

 only by the width of a one-horse cultivator, are about 4,000 Elberta 

 trees, which were budded on the same stocks and at about the same 

 date with buds cut from healthy trees on the same farm. These trees 

 were carefully examined for the rosette, but in the whole nursery there 

 was not one case, nor even one suspicious tree. The line of separation 

 between these healthy trees and the five inoculated rows was sharp as 

 could be desired, and the contrast was most astonishing (plate xxxvm). 

 Two of these Elberta trees are also contrasted on plate xxxvn with 

 two inoculated and diseased trees from the adjoining row, only about 

 2 feet distant. 



Plate xxxvi contrasts one of the inoculated and diseased seedlings 

 with one of the four which failed to take the disease. Plate xxxv 

 shows part of one inoculated row with rosettes on some of the stems 

 as well as on all of the terminal growth. The foliage on the left-hand 

 tree had already begun to wilt and shrivel. Plate xxxvin gives a 

 birds-eye view of the field, contrasting some of the inoculated diseased 

 trees with the neighboring healthy Elbertas. 



Naturally, the results of this experiment attracted considerable 

 attention in Georgia, especially the appearance in the spring and sum- 

 mer of 1891. The trees were examined by many persons, including Col. 

 E. J. Kedding, director of the Georgia Experiment Station ; Gustave 

 Speth, Horticulturist of the Georgia Experiment Station ; Prof. J. E, 

 Willet, of Macon; H. W. Hasselkus, of Griffin, and Rudolph (Etter, of 

 Vineyard. A summary of the final results was given before a meeting 

 of the Middle Georgia Horticultural Society June 9, 1891. The matter 

 was also brought to the attention of Mr. Berckmans and other members 

 of the State Horticultural Society. 



Experiment 2. This was also performed at Vineyard, Georgia, on the 

 farm of J. D. Husted. 



The 56 trees selected for this series of inoculations were vigorous, 

 well-rooted cuttings of the Mariana plum. They formed part of a small 

 nursery grown in 1889, but not budded that year, being cut to the 

 ground in the spring of 1890, so as to secure fresh shoots for budding 

 the following summer. These trees formed the east end of the south 

 row and were not different in appearance from the rest. All were 

 the picture of health. 



The buds for inoculation were taken from the north side of a seedling 

 peach tree which was growing by the wayside near Pomona, Georgia. 

 This tree may have been 4 years old. The south one-half of it was dis- 

 eased by the rosette, and the remainder appeared to be healthy. Well- 

 matured terminal shoots from the healthy-looking branches were selected 

 for use in budding. All of them bore full-grown leaves of a healthy 



