70 CoU Crops 



brown and drops out, leaving the leaf riddled with holes. 

 Control: Spray with 2 lbs. paris green and 6 lbs. soap in 100 

 gals, water or with arsenate of lead (paste), 8 lbs. in 100 

 gals, of water. 



Cross-stkiped cabbage wokm (EvergesHs rimosalis). — A 

 bluish gray caterpillar marked with distinct transverse black 

 stripes, about % in. long when full-grown, that eats holes in 

 the foliage somewhat like the green cabbage worm, and often 

 attacks the tender central leaves and forming head; restricted 

 to the Southern States. Control: Same as for the green cab- 

 bage worm. 



Cabbage webworm (Hell'ula undalis). — Dull grayish yellow 

 caterpillars marked above with five conspicuous brownish 

 purple longitudinal stripes, about % in. long when full-grown ; 

 restricted to the Southern States. They feed on the under- 

 side of the leaves, bore into the leaf-stems and developing 

 head, and usually cover their feeding grounds with a silken 

 web. Control: Where this pest is likely to be troublesome, 

 keep the plants well sprayed with paris green, 1 lb. in 50 gals, 

 water, or with arsenate of lead, 4 lbs. (paste) in 100 gals, 

 water, to kill the young larvsa. After the webs are formed, 

 it is impossible to poison the caterpillars. In severe eases col- 

 lect and destroy cabbage stumps left in the field after the 

 harvest. 



Gakden webwokm (Loxostefje similalis') . — A dull green 

 caterpillar about 1 in. long, marked on the back and on each 

 side with a pale line, and with numerous small shining black 

 spots on the back ; restricted to the Southern States and to 

 the Mississippi Valley. The young caterpillars skeletonize the 

 leaves on the underside, covering them with webs ; the older 

 larvae devour the entire leaf. Control: Same as for the 

 preceding. 



Purple-backed cabbage worm (Evergestis straminalis) . — 

 A bristly purplish brown to dark greenish caterpillar, % in. 

 long, marked on each side with a yellowish stripe, that feeds 

 on the leaves, webbing them together, and sometimes bur- 



