AMONG SCHOOL GARDENS 



heads of cabbage should be carefully screened 

 by one piece of cheese cloth or netting and four 

 by another, while two may be left uncovered. 

 Those uncovered will be exposed while young 

 seedlings and tender plants to attacks of the 

 beetle and the maggot. Those covered will be pro- 



Canby, Minn., Public School Garden and Experimental Farm 



tected from the cabbage butterfly; but it is pro- 

 posed to introduce under one of the screens all 

 the white butterflies of this variety of pierids 

 which the children may catch. Later, the riddled 

 leaves of one group of plants will show the 

 ravages of the caterpillar hatched from the but- 



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