10 



BULLETIN 914, TJ. S. DEPARTMENT OF AGRICULTURE. 



FOOD PLANTS. 



The red-banded leaf -roller is nearly omnivorous, its food plants 

 comprising many botanical orders. The list follows : 



Asparagus, beans, sweet potato, cabbage, horse-radish, celery, 

 parsley, rhubarb, salsify, tomato, sweet corn, pepper, okra, ground 

 cherry (Physalis), blackberry, raspberry, and strawberry among 

 truck crops; chrysanthemum, geranium, rose, lobelia, violet, snow- 

 ball, syringa, hollyhock, zinnia, privet, and honeysuckle comprise 

 the list of ornamental plants. Other plants affected are clover, field 

 corn and popcorn, cranberry, elderberry, grape, orange, apple, plum, 

 elm, maple, oak, laurel oak, aspen, willow, magnolia, catalpa, balsam 

 fir, and Osage orange. The larva also attacks pigweed (Amarantlius 

 retroflexus), goldenrod {Solid ago spp.), smartweed, dogbane. Sola- 

 tium 3p., and GnaphaVrinn polycepTialum. 



NATURAL ENEMIES. 



The red-banded leaf -roller is no exception to a somewhat general 

 rule that larvae which conceal themselves from view in rolled and 



webbed leaves and 

 similar places of 

 shelter are the more 

 i subject to parasitic 

 / attack. The fol- 

 lowing list of para- 

 sites is in evidence : 

 Exochus curvator 

 Fab., an ichneu- 

 monid. was reared 

 by the writer Au- 

 gust 7. 1900. from 

 the host larva col- 

 lected at Camerons 



a parasite of the red-banded leaf- Mills, Va. 3 



roller - Epiurus indaga- 



tor \Yalsh was reared from this leaf-roller on oak at Kirkwood. Mo., 

 November 7, 1878. 



An ichneumonid parasite allied to Pimpla was reared from mate- 

 rial received from Cadet. Mo., in July, 1893, previously mentioned. 

 (Dept. Agr. No. 5861°.) 



Lampronota pleuralis Cress, was reared at St. Louis, Mo.. Novem- 

 ber 7, 1878. 



Limnerium sp. is mentioned by F. M. Webster as having been 

 reared with this leaf-roller and two others on salsify. 



3 Identified by Ashmead. who also identified practically all of the other species men- 

 tioned unless otherwise noted. 



Fig. 4. — Microbracon 



