CONTROL OF GARDEN DISEASES AND INSECTS. 



33 



-The cross-striped cabbage 

 rlmosalis) : a. Moth; b, egg mass; 

 highly magnified ; d, larva, or worm 

 enlarged. 



worm (Evergestis 

 c, portion of egg, 

 ; c, cocoon. Much 



perfectly white, while the worm is more strongly colored, purplish, 

 and yellow striped, with black spots bearing black hairs. Another is 

 the potherb butterfly,^ a species practically confined to the North as 

 a pest. The worm is 

 uniform pale green 

 and resembles closely 

 the cabbage leaves on 

 v>^hich it feeds. The 

 cross-striped cabbage 

 worm (fig. 36) is the 

 young of a moth. It 

 has the very bad 

 habit of the common 

 cabbage worm of 

 boring into the head, 

 and it is very diffi- 

 cult to dislodge. 



Control. — The remedies advised as the best for the control of the 

 common cabbage worm are valuable for all of these species. 



CABB.VGE LOOPEK. 



The cabbage looper (fig. 37) is the young, or worm, of a medium- 

 sized moth resembling a cutworm moth. It is pale green and delicate 



looking when first hatched. 

 When larger, it becomes 

 striped and obtains its name 

 of looper through its habit of 

 doubling up, or looping, as 

 it walks. It is more active 

 than the other cabbage worms 

 previously considered and is, 

 therefore, more difficult to 

 control. It affects all forms 

 of cole crops, and at times 

 does great injury to peas, 

 beets, celery, and lettuce, even 

 ittacking the tomato and po- 

 tato. It is apparently three- 

 brooded from the District of 

 Columbia northward to Long 

 Island and is more destruc- 

 tive southward. 



Control. — Spraying with 

 An adhesive, or "sticker," 



Fig. 37. — The cabbage looper {Aalo(/rapha 

 hrassicae) : Above, male moth ; below, full- 

 grown larva in natural position feeding, and 

 pupa in cocoon just before development 

 of moth. Moth and larva about one-third 

 larger than natural size ; pupa more en- 

 larged. 



arsenate of lead is the best remedv. 



Pontia napi L. 



106342° 



-Bull. 



