184 INSECTS INJURIOUS TO VEGETABLES 



INSECTS INJURIOUS TO CARROTS, PARSNIPS 

 AND PARSLEY 



In this category we include parsley although it does not 

 seem to have any insect enemies of its own. These plants 

 belong to the same family (Umbelliferse) as celery, and as 

 stated in a preceding page most of the insects enumerated as 

 affecting that plant are liable to attack these also, but both 

 parsnip and carrot have particular species that infest them, 



Fig. 118.— Parsnip leaf-miner, a, Fly; b, larva; c. cephalic extremity of larva; (/, anal 

 extremity; e,f, spiracles- All enlarged. (After Coquillett, U. S. Dept. Agr.) 



because they are planted for their roots and not for their 

 delicate stalks, as in the case of celery, which renders the por- 

 tions above ground more rank and those below ground more 

 tender, while each plant (parsnip and carrot) has a flavor 

 peculiar to itself. Thus it happens that the leaves of parsnip are 

 more affected by the parsnip leaf-miner, while the roots of 

 carrot are preferred by the carrot beetle and carrot rust fly. 

 The Parsnip Leaf -miner (Acidia fratria Loew.). — The 

 economic history of this species begins with 1891, when parsnip 

 leaves, in Missouri were quite extensively mined by its larva. 



