INSECTS, ETC 



161 



the roots of carrots. The flies, which are small, lay their 

 eggs on the roots of the carrots in early summer. When 

 hatched the maggots at once bore into the soft parts of 

 the roots, form cavities, and generally disfigure the roots. 

 The maggots are yellowish- white, shiny, and a quarter of 

 an inch long. Carrots attacked by this pest have pale 

 foliage and a stunted growth. 



Remedies. — To guard against a possible attack give the 

 soil a dressing of Apterite, Cliffs Powder Insecticide, 

 Kilogrub, or Vaporite before sowing the seed, in order to 

 destroy the pupie, and prevent them developing into flies. 



SMALL AND LARGE WHITE OABBAGE BUTTERFLY. 

 a, Cat'erpillar; b, Chrysalis; c, Butterfly. 



If one of the above be used there will be no trouble with 

 the Carrot Fly grub. 



Caterpillars. — Quite a number of larv?e of moths and 

 butterflies infest vegetable crops, many of them doing 

 serious injui'y if not promptly dealt with. Thus the larva? 

 of three kinds of butterflies— the Large White (Pieris 

 brassicse), Small White (Pieris rapse), and the Green- 

 veined (Pieris napi) feed on vegetables of the cabbage 



