Bibliography 489 



injury induced by lime-sulfur preparations. N. Y. (Cornell) Agr. 

 Exp. Sta. Bui. 288: 123-12.5. 1910. 515. Talbert, T. J., Combined 

 dormant and first summer spray in apple orchards infested by San 

 Jose scale. Mo. Agr. Exp. Sta. Bui. ^e^. 1919. 516. Pollock, J. B., 

 The longevity in the soil of the Sclerotinia causing the brown-rot 

 of stone fruits. Mich. Acad. Sci. Rept. 20: 279. 1918. 517. Bain, 

 S. M., The action of copper on leaves. Tenn. Agr. Exp. Sta. Bui. 

 Vol. 15, No. 2: 44. 1902. 518. Crandall, C. S., Bordeaux mixture. 

 111. Agr. Exp. Sta. Bui. 1S5: 233. 1909. 519. Selby, A. D., A brief 

 handbook of the diseases of cultivated plants in Ohio. Ohio Agr. 

 Exp. Sta. Bui. 214. 1910. 520. Pammel, L. H., King, C. M., Seal, 

 J. L., Studies on a Fusarium disease of corn and sorghum, la. Agr. 

 Exp. Sta. Res. Bui. 33. 1916. 521. Gunderson, A. J., Field expe- 

 rience in spraying apple orchards for the control of apple blotch. 

 111. Agr. Exp. Sta. Bui. 222. 1919. 522. Schoene, W. J., and 

 Reppert, R. R., Growth of apple trees injured by crown gall and 

 woolly aphis. Quart. Bui. Va. State Crop. Pest. Comm., /. No. 2. 



1919. 523. Ball, E. D., The potato leafhopper and its relation to 

 the hopperburn. Journ. Econ. Ent. Ames, Iowa, 12: 149. 1919. 

 524. Guba, E. F., and Anderson, P. J., Phyllosticta leaf spot and 

 damping off of snapdragons. Phytop. 9: 315. 1919. 525. Hum- 

 phrey, H. B., and Johnson, A. G., Take all and flag smut, two wheat 

 diseases new to the U. S. U. S. Dept. Agr. Farms'. Bui. 1063. 1919. 

 526, Humphrey, H. B., Cereal diseases and the national food sup- 

 ply. U. S. Dept. Agric. Yearbook 1917: 481. 1918. 527. Tisdale, 

 W. B., Iris leaf spot caused by Didjanellina iridis. Phytop. 10: 147. 



1920. 528. Hoffer, G. N., Disease free sweet corn seed. Ind. Agr. 

 Exp. Sta. Bui. 233: 1920. 529. Peltier, G. L., Carnation stem rofand 

 its control. 111. Agr. Exp. Sta. Bui. 223: 1919. 530. Long, W. H., 

 An undescribed canker of poplars and willows caused by Cytospora 

 chrysosperma. Jour. Agr. Res. 13: 331. 1918. 531 Bisby, G. R., 

 Studies on Fusarium diseases of potatoes and truck crops in Min- 

 nesota. Minn. Agr. Exp. Sta. Bui. 181. 1919. 532. Tisdale, W. 

 H., Bacterial blight of soy bean. N. C. Agr. Exp. Sta. Rept. 1918. 

 59. 533. Coerper, Florence M., Bacterial blight of soybean. Jour. 

 Agr. Res. 18: 179. 1919. 534. Wolf, F. A., Bacterial blight of 

 soybean. Phytop. ^0.- 1920. 535. Wolf, F. A., and Cromwell, R. O., 

 Clover stem rot. N. C. Agr. Exp. Sta. Tech. Bui. 16. 1919. 536. 



