. Bulletin. Agriculture. 20 N. H. AGR. EXPERIMENT STATION. [Bulletin 157 effective for leaf spot. Sprayings made at various times in the summer have had little or no effect upon the number of spots of rot on the fruit at picking time. The destruction of the affected fruit seems to be the most efficient treatment for this form of disease. All cankered limbs should be cut out and l)urned. Large wounds should be protected by a covering of paint. Thoro spraying is of value in protecting the limbs. Heavy a])plications made when the trees are in a dormant condition are probably especially efficaciou
. Bulletin. Agriculture. 20 N. H. AGR. EXPERIMENT STATION. [Bulletin 157 effective for leaf spot. Sprayings made at various times in the summer have had little or no effect upon the number of spots of rot on the fruit at picking time. The destruction of the affected fruit seems to be the most efficient treatment for this form of disease. All cankered limbs should be cut out and l)urned. Large wounds should be protected by a covering of paint. Thoro spraying is of value in protecting the limbs. Heavy a])plications made when the trees are in a dormant condition are probably especially efficacious. (See page 32.). Fig. 24.—Unsprayed tree defoliated by Leaf Spot. BITTER ROT OF THE APPLE. Glomerella riifomaculans (Berk.) Spauld & Von Sch. The bitter rot fungus produces cankers on the limbs as well as a rot on the fruit. The rot develops much earlier in the year than the black rot, and the adjacent tissue of the apple has a bitter taste. In the South and the Central West the bitter rot is the most destructive apple disease. It is of very rare occur- rence in New Hampshire, and it is probable that the climatic conditions will prevent it from ever becoming serious 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 Hampshire Agricultural Experiment Station. [Hanover, N. H. ] : New Hampshire Agricultural Experiment Station
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