PART V. 
REPORT OF THE BOTANIST FOR 1911 AND 1912. 
G. P. Ciinton. 
I. NOTES ON PLANT DISEASES OF CONNECTICUT. 
A. DISEASES PREVALENT IN IQII AND IQI2. 
Weather Conditions in 191r. The winter of 1910-11 was 
rather open, with very little extremely cold weather. Snow was 
not abundant, and the little that fell did not cover the ground 
long. During January and February there were a number of 
rainy days. As this moist, warm weather was not followed by 
a sudden cold snap, comparatively little winter injury resulted. 
There were two late frosts during the first week of May that 
injured some of the fruit blossoms, especially cherry and certain 
varieties of apple, also tomatoes that had been set out early, 
but on the whole the injury was not extensive. In case of the 
apples, the pistils were frequently the only part of the blossoms 
hurt. Some of the very young leaves were also injured, causing 
them to have a stunted appearance, with the epidermis loosened, 
in a wrinkled irregular fashion, from the apparently thickened 
tissues beneath. The spring, on the whole, was rather dry 
and warm. 
June and July were extremely dry, with very hot periods in the 
latter month, causing an unusual scald of apples and, to a less 
extent, of peaches. Gooseberries were even baked on the 
bushes. This drought, perhaps the worst of those that have 
occurred during the last five years, was extremely hard on vege- 
tation in general, and especially so on certain market garden 
crops and on trees that had suffered previously from drought 
and winter injury. Hail during the summer caused some dam- 
age to tobacco and apples in certain restricted localities. From 
the middle of August on, the moisture was sufficient for most 
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