50 PEACH ROSETTE. 



were inoculated, 57 were healthy, 66 were diseased, and 2 appeared to 

 be dead. 



In 6 of the 57 healthy, one or both of the inserted buds had pushed 

 into diseased growths; in the rest, the buds had made no growth (the 

 majority), or only a slight growth of uncertain character. In most 

 cases the bark inserted with the buds was still living. 



Sixty-six of the stocks had the same disease as the trees from which 

 the buds were cut. The diseased shoots pushed out indifferently above 

 or below the inserted buds, or from both places. These stocks might 

 have been grouped into four classes according to the severity of the symp- 

 toms: (1) Doubtful, 4; (2) very slight symptoms readily overlooked, 

 20 ; (3) worse affected than No. 2, but also not likely to attract casual 

 attention, 36 ; (4) bad cases which no one could overlook, 6. Five of 

 the latter were photographed, and two are represented on plate xxxiv. 

 Some of these growths were as much as 6 inches from the nearest 

 inserted bud. In 39 of these trees the inserted buds did not grow, or 

 grew only slightly, the bark which was inserted with them being yet 

 alive. In 27, one or both of the buds had grown into diseased shoots. 

 All but 1 of the 6 bad cases fell into the second category. The charac- 

 ter of these growths was much like yellows, except that the shoot-axes 

 were greatly reduced, making them much more tufted. The winter 

 buds pushed in the same way prematurely. 



The remainder of this nursery was used for comparison, but a care- 

 ful examination of many trees brought to light no traces of this disease. 

 The orchards on the same farm might also have served for control. 

 This disease occurs throughout the surrounding country, but is not 

 what might be called epidemic. The farm contains about 100 acres of 

 peach orchard of various ages. The disease first appeared on it in 1887, 

 and the number of cases each year has been as follows: 1887, 2 ; 1888. 

 5; 1889,13- 1890, 31; 1891,47. This year, in which more cases devel- 

 oped than any previous year, they numbered only about one-third of 

 1 per cent. In the nearest orchards on other farms the per cent of loss 

 has also been slight. 



This experiment attracted some local attention, and the trees which 

 furnished the photographs were shown to many persons at a meeting 

 of the Middle Georgia Horticultural Society, November 6, 1890. 



The rapid progress of the disease was surprising. Over one-half of 

 the stocks became affected in less than 5 months, whereas results were 

 not expected until 1891, if at all. 



These trees were re-examined June 3-6, 1891, at the urgent request 

 of Mr. Husted, who desired to get rid of them. The results surprised 

 and delighted me beyond expectation. The diseased trees were dis- 

 tinguishable at a great distance, and at first glance it looked as though 

 every part of every tree was affected. The actual conditions were as 

 follows: 



(1) Four trees were entirely free from disease and Lad made an excellent growth, 

 their average height being about 4 feet* 



