INSECTS, DISEASES, REMEDIES 63 



float and may then be picked out and destroyed. 

 Sound seed only should be reserved for planting. 

 Trof. C. M. Weed recommends* that the beans be en- 

 closed in a tight vessel and fumigated with bisul- 



FIG. 21 BOLL WORM. (fl), MOTH; (&), DARK LAR- 

 VA; (r), LIGHTER LARVA ENTERING POD; (rf), PUPA. 



phide of carbon. The same treatment is recom- 

 mended by William Saunders.** The last named au- 

 thority, recommends the following manner of pro- 

 cedure : Use an ordinary coal oil barrel which will 

 hold close to 5 bushels of beans. This can be treated 



*N H Bui 59. "Canada Exp Farm Bui 52. 



