ECONOMIC BIBLIOGRAPHY. 239 
1903. Surface, H. A. — Monthly Bulletin, Division Zoology, vol. 1, no. 2, Pa. 
Dept, Agr., June, p. 11. 
Brief note on the plum curculio. 
1903. Sherman, F., Jr. — Injurious insects. Spraying for insects and dia 
<Bul. 24, N. C. St. Bd. Agr., 1903, no. 6, pp. 28-29, 1 fig. 
Short descriptive, biological, and economic notes on the plum curculio. 
1903. Osborx, H. — The insect problem. <Columb us Hort. Soc, vol. 18, no. 2, 
pp. 41, 42. 
Statistics showing extent of damage by the plum curculio. 
1903. Sanderson, E. D.— Report of the entomologist. <Del. St. Rept. 1902, pp. 
109-151. 
Arsenicals found to be effective in control of plum curculio on cherry but not on 
apple. 
1903. Horsfall, F.— Orchard enemies. <Bul. 9, Mo. Fruit Station, pp. 27, 28. 
Notes on habits, life history, and means of combating the plum curculio. 
1903. Sherman, F., Jr. — Insect enemies of apple, pear, and quince, with methods 
of treatment. <Bul. 183, N. C. Agr. Exp. Sta., p. 59, 1 fig. 
Brief economic and biological notes on the plum curculio. 
1903. Sherman, F., Jr. — Insect and fungus enemies of the peach, plum, cherry, 
fig, and persimmon. <Bul. 186, N. C. Agr. Exp. Sta., pp. 7-8. 
Brief notes on the plum curculio. 
1903. Horsfall, F.— Orchard enemies. <Bul. 9, Mo. Fruit Station, p. 27. 
Remedies against the plum curculio. 
1904. Lochhead, W. — Insects of the season. <34th Ann. Rept. Ent. Soc. Ont., 
1903, p. 33. 
Note on occurrence of the plum curculio. 
1904. Pettit, R. H. — Insects injurious to fruits in Michigan. <Spec. Bui. 24, Mich. 
Agr. Exp. Sta., pp. 65, 66. 
Brief account of life history of the plum curculio and remedies against same. 
1904. Slingerland, M. V. — Some serious insect depredations in New York in 1903. 
<Bul. 46, Div. Ent., U. S. Dept. Agr., p. 72. 
Remedies against the plum curculio. 
1904. Slingerland. M. V. — Save the quinces and plums. < American Agriculturist, 
p. 551, May 14. 
Remedies against the plum curculio. 
1904. Weed, C. M.— The insect record for 1903. <Bul. 115, N. H. Agr. Exp. Sta., 
p. 174; Ann. Rept., 1904, p. 259. 
Brief notes on the plum curculio. 
1904. Forbes, S. A. — Spraying apples against the plum curculio. <Bul. 52, Bur. 
Ent., U. S. Dept. Agr., p. 49. Papers read before Ass. Econ. Ent., Dec. 30, 
1904. Published as Bulletin 108, 111. Agr. Exp. Sta. (May, 1906). 
1904. Farrand, T. A%Report of the South Haven Substation for l903.<Spec. 
Bui. 27, Mich., pp. 3-4. 
Dust v. liquid sprays against the plum curculio. 
1904. Chittendkx, P. II. — The principal injurious insects of L903.<Ybk. Dept. 
Agr. f. 1903, p. 565. 
Remedies against the plum curculio. 
1904. Cooley, R. A.— 1st Annual Report of the State Entomologist of Montana. 
<Bul. 51, Mont. Agr. Exp. Sta., p. 256. 
Remedies against the plum curculio. 
1904. Fletcher, J. — Insects of the year in Canada. <Bul. l»i. Bur. But., I . S, 
Dept. Agr., p. 82. 
Mention of the plum curculio. 
