154 



TRUCK-FARMIKG AT THE SOUTH. 



near the surface of the ground, and the maggot hatching, 

 eats away its bark and penetrates the stem. 



Half a teaspoonful of bi-sulphide of carbon to each 

 plant, poured into a hole made by a stick at the root, 

 will kill the maggots, after which a healthy plant may be 

 substituted. The vapor of the bi-sulphide of carbon is 

 highly inflammable. A simpler and safer remedy is kero- 

 sene emulsion. 



The insect is strictly confined to plants of the Cabbage 



Fig. 26. RAPE BUTTEBFLT (Pleris rapce). 

 a. Larva ; b, Chrysalis ; c, Female ; d, Male. 



family, and isolated farms may be kept comparatively ex- 

 empt by having no winter crops of any of its members. 

 The most destructive green cabbage-worm at the South, 

 is the looping, or half measuring, larva of the night- 

 flying, or noctuid moth, the Cabbage Plusia (Plusia 

 Irassicce). All cabbage growers know how these with 

 the help of some others, honey-comb cabbages in the 

 spring. 



