288 
The Ohio Naturalist. 
[Vol. XIV, No. 6, 
quately drained and aerated. During rainy seasons we apparently 
have less of this disease than during hot and dry weather. Indi¬ 
cations are that the soil fertility question is not directly involved. 
Recommendations. In planting red raspberries, secure plants 
from localities where raspberry curl does not occur. Grow varie¬ 
ties which do best in your locality and which seem adapted to 
your soil conditions. St. Regis seems to be a promising variety 
not so susceptible to this disease. Early King and Herbert are 
standard varieties doing well in some localities. The former is 
is the only red variety which can be economically grown in Lucas 
county, Ohio, and is entirely replacing all other varieties. 
Plant on a rather light or medium heavy soil which is provided 
with adequate drainage. The addition of barnyard manure well 
incorporated into the soil is of value in producing vigorous and 
thrifty plants. Where irrigation is possible, it is highly beneficial 
and is advisable, especially during adverse seasons. 
Plants affected with raspberry curl are best removed and 
destroyed, as they are worthless for the production of marketable 
fruit. Never use disease plants for propagation purposes. 
The application of fungicides is useless in controlling raspberry 
curl. 
BIBLIOGRAPHY. 
Clinton, G. P. 1903. Report of the Station Botanist. Conn. 
Ag. Expt. Sta. Rpt. pt. 4. pp. 354-355. 
Detmers, F., 1891. Diseases of the Blackberry and Raspberry. 
Ohio Expt. Sta. 4: 128-129. No. 6. Oct. 1891. 
Green, S. B., 1894. Leaf Curl of Raspberrv. Minn. Sta. Ann. 
Rept. 1894: 230. 
—, 1895. Small Fruits, Variety Tests. Minn. Sta. bul. 
45:321-325. 
Lawrence, W. H., 1912. Insect Pests and Diseases of Bush 
Fruits. Better Fruit Magazine, 7:18. 
Melchers, L. E., 1913. Mosaic Disease of the Tomato and 
Related Plants. Ohio Naturalist, 13:169. No. 8. pi. 3. 
Paddock, W., 1904-5. Eighteenth Annual Report of the Colo¬ 
rado Agricultural Experiment Station. 1904-5:44-45. 
Sackett, W. G., 1910. Thirty-second Annual Report of the 
Colorado State Board of Agriculture. 1910:93. 
—, 1911. Twenty-fourth Annual Report of the Colorado 
Agricultural Experiment Station. 1911:18. 
Stewart, F. C. and Eustace, H. J., 1902. Raspberry Cane 
Blight and Raspberrv Yellows. New York Station bul. 
226:362:364. 
