258 INSECTS INJURIOUS TO VEGETABLES 



SWEET POTATO 



General. Sanderson— Sweet Potato Insects, Bui. 59, Md. Agr. 



Exp. Sta., 1900. 

 Sweet-potato Root-borer (Cylas fonnicarius Fab.). Conradi — 



Bui. 93, Texas Agr. Exp. Sta., pp. 3-16, figs., 1907. 

 Larger Sweet-potato Sawfly {Sclucoccrus privatus Nort.). M.\r- 



LATT— Insect Life v. V., pp. 24-27, fig. 6, 1892. 

 Sweet-potato Flea-beetle {Chcctocncma coniinis Cr.). SiMiTH — 



13th Rept. N. J. Agr. Exp. Sta., pp. 472-475, 1892. 

 Mottled Tortoise Beetle {Copfocycla signifcra Hbst. [C. guttata]). 



Sanderson — L. c. 

 Golden Tortoise Beetle {Coptocxda bicolor Fab. [C. aurichalcca]). 



— L. c. 



ONION 



Imported Onion Maggot (Pcgo/itya ccptorum Meade [Antlioiiiyia 

 and Pliorbia ccpanim Bouche]). Chittenden — Circ. 63. 

 Bu. Ent. U. S. Dept. Agr., pp. 6, 7, 1906; Smith and Dick 

 erson — Bui. 200, N. J. Agr. Exp. Sta., 27 pp., 13 figs., 1907 



Onion Thrips {Thrips tabaci Lind.). Fergande — Insect Life, v, 

 VII., pp. 39^-395- 



RHUBARB 



Rhubarb Curculio (Lixiis concavus Say.). Chittenden — Bui. 23, 

 n. s., Div. Ent. U. S. Dept. Agr., pp. 61-69, 1900. 



INSECTICIDES 



1902. Hinds, W. E. — Carbon Bisulphid as an Insecticide. Farmers' 



Bui. 14s, 28 pp. 

 1902-04. Haywood, J. K. — Reports on Analyses of Insecticides. Buls. 

 68, 76 and 82, Bu. Chcin., U. S. Dept. of Agr. and Farmers' 

 Bui. 146. 16 pp. 



1903. Marlatt, C. L. — Important Insecticides. Farmers' Bui. 127, U, 



S. Dept. Agr., 46 pp., 6 figs. 



