PART V. 

 REPORT OF THE BOTANIST FOR 19H AND 19 12. 



G. P. CLINTON. 



I. NOTES ON PLANT DISEASES OF CONNECTICUT. 



A. DISEASES PREVALENT IN 19! I AND 1912. 



Weather Conditions in 1911. 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. 



Tune 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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