New York Agricultural Experimeint Station. 187 



the foliage was killed. In 1900 our first observations were made 

 May 10. At that date the flower buds were unopened and only 

 a few leaf buds broken, but it was even then evident that the 

 trees were considerably injured. On many branches the ma- 

 jority of the buds were dead. The wood of the preceding year's 

 growth was frequently dead, or, if living, was badly discolored. 

 Further observations were made May 21, when the trees were in 

 bloom. Many flower buds failed to open; those which did open 

 were belated, the flower pedicels were quite generally shortened 

 and a large percentage failed to set fruit. We are informed 

 that there was a light crop of fruit. 



In an orchard at Hector the leaf scorch in 1899 affected only 

 the south half of each tree. In the spring of 1900 we found that 

 the flower pedicels on the south side of these trees were abnor- 

 mally short, the flowers often being almost sessile; while on the 

 north side they were considerably longer and nearly normal. 



A New Fungus on Cherry Branches {Cnjptosporiiim cerasinum 

 Pk.). — In the vicinity of Geneva dead cherry branches are fre- 

 quently infested by a species of Gryptosporium. Specimens were 

 submitted to Prof. C. H. Peck, who informs us that the fungus 

 is an undescribed one and that he proposes to call it G. cerasi- 

 num. It is probably not parasitic. Its spores resemble those 

 of the cherry leaf -blight fungus, Gylindrosporium padi. 



Enlargements on the Branches. — Occasionally cherry 

 branches show barrel-shaped enlargements of various sizes. On 

 the Station grounds there is a Chinese double-flowering cherry 

 which is seriously affected in this way. The enlargements are 

 numerous on all branches more than three years of age, and oc- 

 cur even on the trunk. One branch four feet long bears nine 

 enlargements. They are produced by an abnormal thickening 

 of the bark which is dead and brown and often deeply scarred 

 by wide, rough longitudinal slits. (See Plate XXIV, Fig. 1). 

 The cause of the enlargements is unknown to us. 



Other Diseases. — There has been a little powdery mildew, 

 Podosplicera oxyamntlice, on nursery stock and occasionally on the 

 tips of twigs on bearing trees; but it has act been destructive. 



