208 VEGETABLE GARDENING 



and it will be good as late as June. Neither pound or 

 salt the cabbage too much; watch closely and keep clear 

 from scum for good sauerkraut. Buckeye Cook Book. 



Insects. The insects injurious to the cabbage are 

 the flea beetle, cabbage worms, cut-worms, and flea, for 

 treatment of which see chapter on insects. 



Diseases. There are very few diseases that seriously 

 injure the cabbage. The most common is clubroot, 

 also called clubfoot. The life history of this disease 

 .is not known. It attacks the roots of cabbage, cauli- 

 flower, turnips, and other plants of the same family, 

 causing them to form large, irregular swellings. The 

 plant is checked in growth and often dies from the effects 

 of the disease. This is not yet a common disease in the 

 West, but in some of the Eastern and Middle states it 

 is very common. The best way of avoiding it is to not 

 use the same land for cabbage or similar crop without 

 at least three years intervening, during which time it 

 is preferable to have the land in grass or clover. This 

 disease is also transmitted by pepper cress, shepherd's 

 purse, candytuft, and similar plants. This disease may 

 also be distributed in manure from animals fed on diseased 

 plants. 



Black rot of cabbage is a disease that has not attract- 

 ed much attention until the last few years, but has dur- 

 ing that time caused much damage to cabbage and cauli- 

 flower. 



The first indication of this disease is upon the outer 

 leaves of the plant, which turn yellow and die in spots, 

 usually near the margins. Such leaves are also apt to 

 wilt, and careful examination will show that the veins in 

 and near the dead areas are blackened. These spots 

 enlarge and gradually involve the whole leaf, from which 



