70 



Bulletin 242. 



and has not yet been successfully treated. Their minute black eggs 

 are abundant on the cabbage-stumps and leaves left in the field, so 

 that we may expect a grand crop of lice next year. All the parts of 

 the cabbage which are not eaten should be consumed by fire to kill 

 the hibernating eggs. The little males, which differ from the wing- 

 less females, appeared in great numbers later in October, when the 

 eggs were being deposited." 



In 1904 the aphis which attacked the rutabagas was controlled by 

 spraying with whale-oil soap solution, using one pound of soap to six 

 gallons of water, and although this was done but a few weeks before har- 

 vesting the crop, stock did not object to the roots. Kerosene emulsion or 

 tobacco might have been used. 



Uses of Cabbages. 



Their particular value seems to be to furnish succulent and easily 

 digestible feed for dairy cattle, sheep and other stock from August until 

 November, or at the time the pastures are failing. They have an addi- 



FiG. 14. — Danish Ballhead, round, close and firm in 

 texture. Keeps well in storage. Surehead {at right), 

 light, open in texture, does not keep well in storage. 



tional value since they may be sold as a cash crop if cabbages are scarce, 

 and in such case it may be deemed advisable to store them. 



During the past two years the percentage of dry matter of cabbages 

 has varied from 5.74 per cent, to 8.42 per cent., in all cases being lower 

 than the figures usually given and used in calculating rations. The actual 

 yields of dry matter per acre varied from 1.6 to 3.9 tons. About one- 

 fourth of this nitrogenous matter and cabbages are looked on as being 

 rich in protein. 



Methods of Feeding. 



Cabbages are good food for cattle, sheep and swine. When they are 

 grown for stock feeding it has not been a general practice to remove' 



