36 PEACH YELLOWS. 



May 13, 1889. Doubtful. A few feeble shoots are growing on the trunk below the 

 stub of the excised limb, and on the base of another limb. 



September 17, 1889. Symptoms of yellows are now present. From the stub of the 

 excised limb have grown two much-branched, feeble shoots upon which winter buds 

 are now germinating. Such a shoot has grown also from the trunk, 14 inches below 

 the cut. There is also a small, diseased shoot on the base of a main limb, 12 inches 

 above the excision. Otherwise the tree appears to be healthy. There was no fruit 

 this year. 



October 11, 1890. The foliage is abnormally reddish, and the winter buds are now 

 germinating upon two large shoots, which have grown from the base of the main 

 limbs. No fruit in 1890. 



(19) August 10, 1888. Variety, Keeves's Favorite. One limb was removed. Two 

 small branches bore ripe, red-spotted fruit. These branches joined the main limb 

 about 8 feet above the cut. Six other branches of about the same size bore green 

 peaches. The entire limb bore full-grown, dark-green foliage ; and there were no 

 diseased shoots. The stump was sound. The remaining limbs bore healthy, green 

 peaches and excellent foliage. 



May 13, 1889. There are a few sprouts of uncertain character on the stub of the 

 excised limb. Otherwise the tree appears to be healthy. 



September 17, 1889. The top bears good foliage and looks healthy, but several 

 branched and feeble diseased shoots have grown from the stub of the excised limb. 

 There is no fruit, and I can find no certain indications of disease on any other part of 

 the tree. 



October 11, 1890. For the time of year there is more than the usual amount of foli- 

 age on this tree, and it is of better size and color, and less curled than on many of the 

 trees. However, several terminal buds have pushed in the top of the tree, and win- 

 ter buds are now germinating on six different shoots which have grown from the 

 base of the main limbs. One of these shoots pushed twenty-eight buds in late sum- 

 mer or early fall. These made a spindling growth of 2 to 4 inches, and are now dead. 

 On the same shoot sixteen additional buds are now germinating. There was no fruit 

 in 1890. 



(20) August 10, 1888. Variety, Old Mixon. One limb was removed ; three limbs 

 were left. The excised limb bore premature peaches on nearly every branch. One 

 diseased shoot, one-eighth inch long, was pushing through the bark about 2 feet above 

 the cut, and a half dozen others, one-eighth inch to 1 inch long, were visible higher 

 up. There were no others, and the spring foliage was healthy. The remaining limbs 

 were full of healthy foliage and green peaches, which Mr. Price said ought to ripen 

 from 9 to 12 days later. 



May 13, 1889. Doubtful. There are some indications of disease near the stub of 

 the excised limb. 



September 17, 1889. The tree is now badly diseased. A half dozen rank-growing 

 branched yellows shoots have pushed from the trunk below the excision and from the 

 base of the limbs above it. Feeble yellows shoots are abundant on both main 

 branches of one limb all the way to the ends of the twigs in the top of the tree, i. e., 

 12 feet above the excision. The spring foliage on this limb is also dwarfed, curled, 

 and yellowish. On another limb the spring foliage is normal, but there is a diseased 

 shoot at its base, and another about 3_feet up. The third limb appears to be entirely 

 healthy. No fruit. 



October 11, 1890. The foliage is very red and unhealthy looking, and sickly shoots 

 have grown not only in the top of the tree but also next to the roots and on the base 

 of the limbs ; and winter buds are now germinating. The tree bore no fruit this 

 year. 



This closes the excision experiments. The results varied considerably, 

 but in no case did the removal of affected parts stop the progress of the 



