. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). 176 Bulletin 131. and again as soon as the leaves are off in the fall. If trees are thoroughly sprayed every year with Bordeaux mixture for the leaf-blight fungus, the black-knot will make comparatively few inroads into the orchard. The blight which causes the leaves to fall in August or Septem- ber is one of the most serious diseases of the plum orchard; but the disease can readily be kept in check by thorough spraying with Bordeaux mixture two or three times during the summer. We have found, at Ithaca tha
. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). 176 Bulletin 131. and again as soon as the leaves are off in the fall. If trees are thoroughly sprayed every year with Bordeaux mixture for the leaf-blight fungus, the black-knot will make comparatively few inroads into the orchard. The blight which causes the leaves to fall in August or Septem- ber is one of the most serious diseases of the plum orchard; but the disease can readily be kept in check by thorough spraying with Bordeaux mixture two or three times during the summer. We have found, at Ithaca that we can hold the leaves on until frost by sprayings which have begun about two weeks after the blos- soms fall, and repeated two or three times during the season. A somewhat full account of these experi- ments will be found in our Bulletin 86. The fruit-rot is another serious difficulty of the plum. This is the work of a fungus. Many times the dead and dried fruit may be seen hanging upon the tree all winter, as shown in Fig. 38 ; and in such cases it is very likely that the fruit- spur will be killed as the up- per one in the picture has been. In handlmg this disease, the first consideration is the fact that some varieties are much more susceptible to it than others are. The I^ombard is one of the very worst. Again, if the fruit grows in dense clusters, the disease is more apt to be severe. The thinning of the fruit, therefore, is one of the very best preven- tives of the spread of the disease and at the same time, also, one of the most efficient means of increasing the size, qualit}' and sala- bleness of the product. It may, therefore, be expected to pay in. }fi,'—Fruit-rot of the plum. The upper spur is dead, probably killed by the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York (Stat
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