THE CABBAGE FAMILY 87 



his best appetite with him. This green cabbage 

 worm came from Germany some years ago, and his 

 one ambition is to swallow everything in sight. 

 The cabbage worm grows very rapidly, and soon 

 fills his skin so full that it cracks and peels off, 

 while he crawls out in a brand new skin, much larger 

 than the old one, ready for another feast of cabbages. 



Fortunately this ravenous creature is easily con- 

 trolled. Spray the plants with Pyrox, or arsenate 

 of lead, and that will be his final feast. There is 

 little danger from using this spray, as the heads 

 expand from the growth of the inner leaves, and 

 the leaves sprayed during growth will not be eaten. 

 It would not be wise, of course, to spray just before 

 gathering ; but this is not necessary, as the worm 

 can do little harm to the grown plant, if it has been 

 well sprayed when growing. We might add that the 

 pretty, little yellow butterfly is the mother of all 

 these green worms. The more yellow butterflies 

 you catch, the fewer green worms will be left to 

 eat cabbage. 



Clubroot. — A disease called clubroot often de- 

 stroys cabbages, and when the plant is once in- 

 fected there is no way of curing it. The roots 

 become enlarged, and the plant becomes stunted. 

 The best way to fight clubroot is to change the cab- 

 bage patch each year, and also the seed bed. The 

 germs of the disease linger from year to year, and 

 may attack new plants growing in the same spot. 



