poe! - ies 
24 BULLETIN 1301, U. S. DEPARTMENT OF AGRICULTURE 
ing that the planting was discarded. The only crop worth harvesting 
was produced in 1916, the best varieties yielding more than a quart 
to the plant. 
A third test was started in 1921. To reduce mixing through sucker- 
ing, the varieties were planted in blocks instead of in rows. This 
planting produced a fair crop in 1922, although yields ran con- 
siderably less than a quart to the plant. 
Red varieties in this trial included Cuthbert, Eaton, Empire, Her- 
bert, Minnetonka, King, Latham, Loudon, Marlboro, Miller, ‘“‘ Minne- 
sota No. 1,’ Perfection, Ranere (St. Regis), Sarah, Sunbeam, and 
Welch. The four of these varieties that appear to be among the 
most promising are Loudon, King, Latham, and Sunbeam. The last 
is rather small, but is drought resistant and shows up well in a dry 
year. Latham is superior in size and quality but is not as prolific as 
Loudon or King. 
Black and purple varieties tested include Cardinal, Cumberland, 
Gregg, Kansas, Royal Purple, and Tye. Cardinal and Cumberland 
have given the best results, the former producing more than a quart 
to the bush in 1916. Black raspberries generally have not been as 
prolific as the red ones, and they are more difficult to handle. 
BLACKBERRIES AND DEWBERRIES 
Varieties of blackberries tested include Ancient Briton, Eldorado, 
Green, Rathbun, Snyder, Stone, Star (or Wonder), La Grange, and 
Joy. No stand of the last three varieties resulted. Blackberries 
were handled in the same way as raspberries, but none of the varieties 
proved hardy, and none produced fruit of any consequence. 
Lucretia was the only dewhberry tested. It was not hardy and 
failed to produce fruit. 
The results indicate that blackberries and dewberries should not 
be planted on the northern plains, at least not under dry-land con- 
ditions. 
STRAWBERRIES 
Strawberries have been unreliable and generally poor yielders at 
the field station. Moisture is perhaps the chief limiting factor, as 
most varieties come through the winter without severe injury if pro- 
tected with a good straw mulch. 
The varieties tested include Dunlap, South Dakota, Warfield, 
LaBon, Trebla, Americus, Haverland, Bederarena, Progressive, 
William Belt, Minnesota, Minnehaha, Easypicker, Duluth, and a 
number of Minnesota and Ettersburg numbered selections. Dunla 
Easypicker, and South Dakota have been the most reliable of the 
June-bearing varieties, while Duluth (Minnesota No. 1017) has been 
the best ever-bearing variety. 
The results with strawberries indicate that planting should be 
limited unless there are some facilities for irrigating. 
CULTURAL TESTS 
After the hardiest varieties of fruits have been selected, one must 
know how to grow them and the cultural methods best adapted to 
the severe climatic conditions of the plains. Serious attention has 
been given to cultural problems, but it is rather difficult to obtain 
comparable results by the usual plat methods, owing to the difficulty 
