355 



Injurious Insects of 1891 in Colorado. —Piof. C. P. Gillette, in Bulletin 

 No. 1!) of tlie Colorado Aj;Ticultural Experiment Station, has published 

 a careful and well-illustrated series of articles upon a number of inju- 

 rious insects which have appeared during the psist season in the State 

 to which his labors have been transferred. A number of the insects 

 treated are more or less novel, which renders the bulletin more interest- 

 inin' to the economic entomologist than are the generality of such ])apers. 

 The species treated are the Fruit-tree Leaf- roller {Caccccia aryyroapila 

 Walk.), a Tortricid moth which has done serious injury to the buds of 

 Apple, Cherry, Rose, Currant, Raspberry, and Gooseberry; the Box- 

 elder Leaf-roller {(Jucwcia scmiferana Walk.); the Grape-vine Leaf-hop- 

 per {Typhlocyha vitifex ? Fitch); the Gooseberry Fruit-fly {Trypeta 

 canarlemis Loew); the Imported Currant Borer {Se.na tipuUformis 

 Linn.); the Western Currant and Gooseberry Span-worm (r/irt»iwowo»m 

 4-linearia Pack., and T. Jlavicaria Pack.); the Spotted Bean-beetle 

 {Epilachna corrupta Muls.) ; the Squash Root-maggot ( Cyrtoneura stahu- 

 lans), and the Pea-weevil {Pyruchus pisi). The illustrations are twelve 

 in number and are all original. The most interesting article, perhaps, is 

 that ui)on Epilachna corrupta^ which we have freciuently mentioned in 

 these pages as doing considerable damage to beans in New Mexico, from 

 which locality it has been reported by our old-time friend and corre- 

 s])ondent Judge J. F. Wielandy. According to Prof. Gillette it is a most 

 important enemy of tlie Bean in Colorado. No experiments have been 

 made with remedies against this species, but the gathering of the eggs 

 and the use of the arsenites and kerosene emulsion are recommended. 



A Bulletin of the Oregon Station. t — Bulletin 18, of the Oregon Experi- 

 ment Station, by Mr. F. L. Washburn, has appeared. ^ It is somewhat 

 of an emergency publication and designed particularly to meet the 

 wants of fruit-growers. Tiie subtitles are as follows: Insects injurious 

 to young Fruit Trees, the Codling Moth, Kerosene Emulsion, Wire- 

 worms, and Flea-beetles. Many of the species here considered were 

 discussed somewhat more at length in Bnlletin No. 5 of the same sta- 

 tion, and a detailed list need not be given here. 



We quote the following notes concerning the comjiarative value of 

 the kerosene emulsion and extract of quassia for the Hop Louse: 



Prof. C. V. Riley, United States Entomologist, recommends this emulsion for the 

 Hop Lonso, 1 part emulsion to 25 parts of water, and it has proved of great benefit 

 in this direction. 



In Bulletin No. 10, from this Station, kerosene emulsion, 1 part to 30 parts water, 

 was rt'commended as a good spray fur the hoi)S, and for jilum trees in the spring, 

 before the louse had migrated to the hops. 



" State Agricultural College Agricultural Experiment Station. Bulletin No. 19. 

 Observations upon Injurious Insects, Season of 1891. Fort Collins, Colo., May, 1892. 



t Oregon Agricultural Experiment Station Bulletin No. 18. Entomology. F. L. 

 Washburn, Entomologist. Corvallis, March, 1892. [pp. 16, figs. 14.} 



