258 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



moths to lay their eggs upon it instead of the cotton, while the 

 cow-peas will furnish both food and shelter to the moths. Corn 

 should never be planted with cotton when cotton is planted, for 

 instead of acting as a trap crop it merely furnishes food upon 



which the worms 

 multiply during the 

 early season and 

 forces those of the 

 third generation on 

 the cotton. The 

 strips of corn and 

 peas should be cut 

 as soon as the worms 



FIG. 187. The moth of the bollworm or com ear- <> n them become 

 worm enlarged one-fourth. (After Quaintance fairly grown and 



and Brues, U. S. Dept. Agr.) 



the land plowed to 



destroy any which may have pupated. " On large plantations the 

 planting of small areas of corn here and there in the fields is prac- 

 ticable. Such early crops as potatoes, oats, or wheat may be 

 followed by corn and cow-peas with practically the same results." 



The Cotton-boll Cutworm * 



The larva of this species is a very common feeder upon the 

 foliage of cotton and late in the season bores into the bolls in 

 much the same manner as the bollworm. Cotton is but one 

 of a long list of food-plants, however, as it is a common pest 

 of sugar-beets, corn, wheat, cabbage, potato, asparagus, salsify, 

 peach, raspberry, violet, cucumber, tomato, turnips, pea, rape, 

 pigweed, cottonwood, and grasses according to Chittenden. 

 It occurs commonly throughout the States east of the Rocky 

 Mountains. 



The moth has a wing expanse of about 1J inches, the fore- 

 wings being a dark, rich, velvety brown, marked with black, 



* Prodenia ornithogalli Guen. Family Noctuidce. See Sanderson, I.e., 

 and F. H. Chittenden, Bulletin 27, n. s., Div. Ent., U. S. Dept. Agr., p. 64. 



