VEGETABLE PLANTS. 53 



and accepted as a truth among the entomo- 

 logical fraternity. We think the error has 

 continued long enough for the good of the 

 cabbage, turnip, and radish growers of our 

 country, so we have given our own opinions 

 freely upon the subject, and will await the 

 decisions of careful experimenters as to the 

 correctness of our views. 



THE RADISH MAGGOT. Mr. Fitch, in the 

 Report above alluded to, lays the parentage of 

 this well-known worm to a different fly from 

 the one which he thinks produces the cabbage 

 maggot. In our opinion which is founded 

 upon practice and careful observations it is 

 the same, neither being the product of a " fly 

 resembling a house-fly," but both emanating 

 from the eggs of the striped flea-beetle. We 

 do not say that there is no other fly in exist- 

 ence whose eggs produce worms which feed 

 upon the roots of either cabbage or radish. 

 There may be such an insect, but we have 

 never seen it. We write only of what we 

 know, not of what may exist beyond our 

 knowledge. Our experience has been with 

 radishes the same as with cabbages. 



Whenever we have kept the young radish 

 plants entirely free from the ravages of the 



