87 



REMEDIES. 



This species is amenable to the same remedies as the greenhouse 

 leaf-tyer, considered in the initial article of this bulletin. 



The presence of the caterpillars on roses is so obvious as to be easily 

 detected, and all that is necessary in many cases when they are found 

 in the leaves is to crush them between the thumb and forefinger. If 

 the greenhouse is not fumigated the only remedy after the caterpillars 

 have attacked the buds is to cut off the buds and burn them, or destroy 

 them by crushing under foot. 



Owing" to the concealed manner of life of the larva it is doubtful if 

 insecticides would be of much value when the insect is found on roses 

 in gardens, hence hand methods must be resorted to. 



The larvae of a number of other moths, mostly Tortricidae, attack 

 roses in much the same manner as the rose bud-worm. Some of the 

 best known of these may be briefly mentioned. 



THE ROSE LEAF-TYER. 



(Penthina cyanana Murtf.) 



A species closely related to Penthina nimbatana is P. cyanana, which 

 was described by Miss Murtf eldt in 1880 (Amer. Ent, Vol. Ill, pp. 

 14-15). The habits of this species do not appear to differ materially 

 from those of P. nimbatana. It is more abundant on roses growing 

 in the open, but according to Mr. G. C. Davis it also attacks roses in 

 greenhouses. Of its injuries at Kirkwood, Mo., Miss Murtf eldt wrote 

 that it was occasionally so abundant as to devour or mar fully 20 per 

 cent of the rosebuds, especially of white or light-colored varieties. 



Among the notebook records of the Division of Entomology this 

 is stated to have been found by the late Dr. Riley in injurious num- 

 bers on his roses at Washington during the summer of 1879. July 6 

 of the next year he received rosebuds containing larvae, which were 

 reared to the adult, from Mr. Henry Plumb, Pleasanton, Kans. 



This species was found at work on roses at Alexandria, Va. , by Mr. 

 T. A. Keleher, of this office, in July, the imago issuing in the middle 

 of that month. 



The recorded distribution of this species comprises portions of the 

 states of Missouri, Kansas, Pennsylvania, and Michigan, and to this 

 list may be added the District of Columbia. 



As in manner of life all these rose pests are similar, the remedies to 

 be applied are the same. 



THE QBLIQUE-BANDED LEAF-ROLLER. 



(Caccecia rosaceana Harr.) 



One of the most important of the leaf -rollers, from the economic 

 point of view, if we consider its injuries to all its food plants, is 



