The Ohio i^aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
LIBRAR' 
NEW YOH 
BOTANIC-- 
Harden 
Volume XIV. APRIL, 1914 . 
No. 6. 
TABLE OF CONTENTS. 
Melchers— A Preliminary Report on Raspberry Curl or Yellows. 281 
Wells— Some Unreported Ceeidia from Connecticut.289 
Humphrey —The Honeysuckle Family in Ohio. 299 
A PRELIMINARY REPORT ON RASPBERRY CURL OR 
YELLOWS * 
Leo E. Melchers 
Raspberry curl, or “yellows,” can probably be regarded as the 
most serious of raspberry diseases. This malady was first re¬ 
ported by Green in Minnesota (1894), and is apparently the same 
trouble as mentioned by Stewart and Eustace (1902), who called 
it “raspberry yellows.” The writer' believes that the original 
name, raspberry leaf curl, or raspberry curl, is descriptively more 
appropriate and lessens the possibilities of a misconception re¬ 
garding its undetermined cause. 
Although this malady has been known for some years, little 
work seems to have been done upon it. Green (1895), reported 
raspberry leaf curl as the worst raspberry disease in the state. 
Stewart and Eustace (1902), reported raspberry yellows as occur¬ 
ring in New York; they regarded it as distinct from raspberry cane 
blight caused by Coniothyrium fuckelii Sacc., ( Leptosphaeria 
coniothyrium (Fckl.) Sacc., and the description of its field char¬ 
acteristics show it to be entirely different. Clinton (1903, p. 35), 
mentioned cane blight of raspberries, but from the symptoms 
given, namely, that “the foliage of the infected cane is usually 
streaked with yellow and crinkled,” he appears to have been 
describing the raspberry curl disease, for the above symptoms 
are not characteristic of cane blight caused by Leptosphaeria 
coniothyrium (Fckl.) Sacc. Paddock (1914-5), stated that rasp¬ 
berry yellows attacked the Malboro in Colorado. Sackett (1910), 
merely mentions raspberry yellows, without giving any descrip- 
* Department of Plant Pathology, Kansas State Agricultural College, 
Manhattan, Kansas. 
