288 



STATE BOARD OF AGRICULTURE. 



tacks. The cotyledons were blackened or browned, and in many cases 

 the plumule or young shoot was shriveled and dead. Larvae and pupae 

 of the maggot were found either in decaying cotyledons or in the fleshy 

 stems beneath the surface of the soil. 



Specimens of these larvae and pupae were collected and placed in 

 suitable cages in which adults were found on July 22d, 



Fig. 10.— Young Bean plants affected by Bean-maggot, enlarged. Original. 



These flies clearly resemble the adults of their relatives, the onion- 

 maggot and the cabbage-maggot, being in appearance something like 

 the house-fly, but considerably smaller. As this fly is reported as feed- 

 in- on a number of other plants, it is likely that there is more than 

 one brood each year. It is also likely that treatment with carbolic acid 

 emulsion will repel the adult flies and prevent to a large degree the 

 laying of eggs as in the case of the onion-maggots and the cab&age^ 

 maggots. 



