APPENDIX LINCOLN CONFERENCE MINUTES OF WAR EMERGENCY CONFERENCE Of great plAINS PLANT PATHOLOGISTS, LINCOLN, MARCH 19-20, 1918 The meeting was called to order by Dr. E. C. Stakman, Commissioner, for the Great Plains area. The following were present: from Colorado, H. E. Vasey; Iowa, I. E. Melhus, I. H. Vogel; Kansas, L. E. Melchers, A. J. Mix; Minnesota, E. M. Freeman, E. C. Stakman, A. F. Thiel, G. R. Bisby; Missouri, G. M. Reed; Montana, D. B. Swingle; Nebraska, E. M. Wilcox, R. J. Pool, Miss E. M. Anderson, Miss L. V. Walker, R. O. Cromwell, T. J. Fitzpatrick, H. P. Rigdon, H. W. Thurston, J. E. Weaver; South Dakota, A. N. Hume; for the War Board, H. H. Whetzel, E. C. Stakman, G. R. Lyman and F. D. Kern; from the Department of Agriculture, H. B. Humphrey, W. W. Gilbert and G. R. Lyman. Dr. Freeman, President of the Phytopathological Society, pointed out the value of the movement toward correlation and concentration of effort, and the opportunities afforded the Great Plains pathologists, especially in work on cereal diseases. Dr. Wilcox, after a brief speech of welcome, spoke for informality of discussion and the importance of eradicating the isolation of Pathologists. In response to Dr. Stakman's call for reports of progress, Commissioner Whetzel stated (in addition to the report already given, Science, N. S. 47: 210-212, 1918) that the embargo on fungicides had been lifted, and that reasonable prices should obtain, regarding which information could be obtained from Dr. Coons of Michigan. Professor Whetzel has also prepared lists of emergency data for distribution to plant pathologists. Research and the problems now demanding attention were discussed and the following actions taken: Seed treatment for cereals. Dr. Stakman was elected leader. Seed disinfection experiments for the control of smuts are to be carried on by all the states represented. The effect of the different treatments on the yield, seed and smut, are especially to be considered. Wheat diseases. Scab was reported as troublesome. Mr. Swingle of Montana was made leader. The effect of the scab fungus on crops other than wheat is to be given attention. Black chaff was reported as perhaps not so serious as its prevalence might indicate. Prof. Melchers of Kansas was made leader. Cereal diseases caused by imperfect fungi were referred to Dr. Humphrey as leader. Stem rust was discussed as to the significance of biologic forms, and particularly as to its relation to the barberry; the necessity for publicity regarding the barberry and possible methods of insuring eradication were discussed. The following resolution was adopted: THAT it is unanimously voted by this Conference, which is composed of representatives from the states comprising the Upper Mississippi Valley where the rust of wheat and other cereals is of utmost importance; THAT the common barberry, Berberis vulgaris (both the green and purple varieties) is one of the chief factors in the rust of wheat and other cereals; THAT the eradication of the common barberry throughout the Upper Missisippi Valley is unequivocally recommended, and especially at this time when every effort ought to be made to safeguard the production of a large cereal crop; THAT, since the barberry is one of the chief factors in the rust of cereals, it is the firm and unanimous conviction of the members of this Conference that the eradication of the common barberry throughout this district would certainly decrease the amount of rust of cereals, that in all probability the eradication would considerably. decrease the amount of rust and that it is easily within the realm of possibility that the eradication of common barberries may effectually control this rust which is such a serious menace to our greatest war-time crops; THAT the attention of the public be especially called to the fact that the Japanese barberry (Berberis Thunbergii) is not only becoming more popular than the common barberry from horticultural standpoints, but that it has an especial advantage in that it does not harbor any stage of the rust of cereals. Barley diseases: Stripe and smut diseases are to be investigated following the leadership of Dr. A. G. Johnson of Wisconsin. Rye diseases: Ergot investigations are to be led by Dr. A. G. Johnson and smut work continued at the Minnesota station. Oats diseases: Dr. Melhus of Iowa, was made leader to work in coöperation with other states. Corn diseases: Root and ear rots are to be under the leadership of Dr. Melhus. Smut work assigned to Prof. Melchers of Kansas. Potato diseases: Dr. Stakman was chosen to obtain data on the various Fusarium diseases, the information gathered to be presented to Dr. W. A. Orton for the assignment of work to the various stations. Other potato diseases were distributed as follows to the men in the Great Plains Region: Blackleg, Swingle, Wilcox, Melhus and Bisby; Rhizoctonia, Reed, Wilcox, and Vasey; curly dwarf, Melhus and United States Department of Agriculture (Greeley, Colorado Field Station); scab, Vasey, Reed (to cooperate with Lutman of Vermont); tipburn, Melchers, Melhus; spraying, Bisby, Wilcox; leaf roll, and related diseases, United States Department of Agriculture (Greeley, Colorado, Field Station), Horticultural Departments of Minnesota and Montana. Sugar beet diseases: Prof. Vasey of Colorado was chosen leader. Sorghum diseases: Kernel smut was reported important. Dr. Reed of Missouri was made leader. Alfalfa and clover diseases were referred particularly to Mr. F. R. Jones, United States Department of Agriculture. Bean diseases: Dr. M. F. Barrus, of the United States Department of Agriculture was asked to act in an advisory capacity and Drs. Reddick and Burkholder of Cornell were called on for assistance with mosaic and root rots. Tomato diseases: Mr. Bisby was made leader for the Great Plains, to work with others in aiding Mr. F. J. Pritchard, United States Department of Agriculture, or Prof. H. W. Anderson, Illinois. Fruit diseases: Prof. Whetzel gave a report on dusting, and its value. A discussion followed. It was decided that no action was required for this region, although perhaps Montana and Minnesota can carry on some work. Flax diseases: Mr. C. S. Reddy, North Dakota, was chosen leader for this region. The following motion was passed: "Moved, that it is the sense of this Confer ence that the War Emergency Board of American Plant Pathologists be requested to appoint a committee selected from the pathologists from the various parts of the country to act toward bringing about better coöperation between the United States Department of Agriculture and the various experiment stations with particular reference to the possibility of concentration of men and efforts on particular projects." After consideration and discussion of the Plant Disease Survey, it was unanimously voted as the sense of the meeting: THAT the Plant Disease Survey is of greatest fundamental importance, (a) in the direction of plant pathological programs in every state, (b) in the basis which it furnishes for correlation and coöperation between states and the Federal Government, (c) in the opportunities which it offers in the stimulation and standardization of methods of collection of disease loss statistics, and (d) especially in the development of greatest possible accuracy in the published estimate of crop losses: THAT the excellent development and growth of the Plant Disease Survey has given gratifying evidence of the policy of the Department of Agriculture in the support of this survey; THAT We urge upon the United States Department of Agriculture in the present crisis, when the Plant Disease Survey is of utmost emergency importance, the great necessity for not only a continuation of that support but also for the most liberal expansion and increase in that support which is possible at this time. THAT We assure the United States Department of Agriculture that such increased support would in our opinion be of utmost importance and assistance in the pathological work of our several states. Extension and teaching were discussed by Commissioner Whetzel. Dr. Freeman pointed out the value of mental tests, and of presenting to the students data as to the possibilities that may result from botanical training. Mr. W. W. Gilbert reported on the methods of getting data to the farmer through extension men in the various states, and the relation of such men to the states. Regarding Man Power, Commissioner Kern reported, and the matters involved were discussed. Dr. Freeman was appointed as a member from this district to work with Drs. Coulter, Harper and Jones in considering the cases of men in relation to the draft. The usefulness of women in many lines was emphasized, and Dr. Kern was asked to list the women with plant pathological training. Publicity of the right kind to the general public was urged by Commissioner Kern and methods discussed. In behalf of the people at the college at Lincoln, the following motion was adopted: THAT the conference express a hearty vote of thanks for the excellent entertainment, and that the secretary send a message of thanks to those concerned. It was decided to hold an autumn meeting at the call of the chairman, Secretary. LITERATURE ON PLANT DISEASES1 COMPILED BY EUNICE R. OBERLY, LIBRARIAN, BUREAU OF PLANT INDUSTRY, AND FLORENCE P. SMITH, ASSISTANT March, 1918 Bachman, Freda Marie. A bacteriological method useful for the study of other micro-organisms. Amer. Jour. Bot. 5: 32–35, illus. Ja. 1918. Barrett, James Theophilus. Bacterial gummosis of apricots-preliminary report. Mo. Bul. State Com. Hort. [California] 7: 137-140, illus. Mr. 1918. Barss, Howard Phillips. Bacterial gummosis of stone fruits. Mo. Bul. State Com. Burkholder, Walter H. The anthracnose disease of the raspberry and related plants. Plectodiscella veneta. Carpenter, Clarence Willard. Wilt diseases of okra and the verticillium-wilt problem. Jour. Agr. Research 12: 529–546, pl. A, 17-127. Mr. 4, 1918. Literature cited, p. 544-546. Fusarium vasinfectum, Verticillium albo-atrum. Chapman, George H. Mosaic diseases of tobacco. Massachusetts Agr. Expt. Sta. Bul. 175: 73-117, 5 pl. My. 1917. Coit, John Eliot, and Hodgson, Robert W. The June drop of Washington navel oranges, a progress report. California Agr. Expt. Sta. Bul. 290: 201-212, illus. 1918. Alternaria citri. Daniel, Lucien. Comment préservée nos chênes. Compt. Rend. Acad. Sci. [Paris] 164: 957-959. Je. 18, 1917. Darnell-Smith, George Percy. Diseases of tobacco plants. Blue mould and a bacterial disease. Agr. Gaz. N. S. Wales 29: 82-88, illus. F. 1918. Peronospora hyoscyami, Bacillus solanacearum. Eastham, John William. Exhibits of plant diseases and insect pests. Agr. Gaz. Canada 5: 51. Ja. 1918. Faulwetter, Roy Christopher. The Alternaria leaf-spot of cotton. Phytopathology 8: 98-105, 3 fig. Mr. 1918. Fracker, S. B. Is crown gall injurious to apple nursery stock? Jour. Econ. Ent. 11: 133-135. F. 1918. Fromme, Fred Denton. Plant diseases in Virginia in 1915 and 1916. Virginia Agr. Expt. Sta. Ann. Rpt. [1914]/16: 187-192, 4 fig. 1917. and Thomas, Harvey Earl. Dusting for cedar rust. Virginia Agr. Expt. Sta. Ann. Rpt. [1914]/16: 179–183, 2 fig. 1917. Bibliographical footnotes. 1 This list includes references, both American and foreign, to the literature of plant pathology and mycology of interest to pathologists. Foreign references published since January 1, 1917, have been included beginning with the list appearing in v. 7, no. 3, June, 1917. All authors are urged to cooperate in making the list complete by sending their separates and by mak ing corrections and additions, and especially by calling attention to meritorious articles published outside of regular journals. Reprints or correspondence should be addressed to Miss E. R. Oberly, Librarian, Bureau of Plant Industry, U. S. Dept. Agric., Washington, D. C. Galloway, Beverly Thomas. Some of the broader phytopathological problems in their relation to foreign seed and plant introduction. Phytopathology 8: 87-97. Mr. 1918. Groenewege, J. De gomziekte van het suikerriet en hare bestrijding. Arch. Suikerindus. Nederl. Ind. 16: 597-638, 9 pl. Ap. 1917. (Meded. Proefstat. Java-Suikerindus. Landb. Ser.1917, no. 6.) Güssow, Hans Theodor. Plant diseases in Canada. Science n. s. 46: 362. O. 12, 1917. Dothichiza populea on Lombardy poplar, Colletotrichum cereale on spring wheat, Leptosphaeria napi (conidial form Sporidesmium exitiosum found) on seed pods of turnips. Hall, Constant Johan Jacob van. Brand in het graan op Java. Teysmannia 28: 24-27. 1917. De bruine wortelschimmel (Hymenochaete noxia). Teysmannia 28: 289295. 1917. [Literature], p. 295. Harreveld, Philipp van. De bibitvoorziening bij de Java-suikerindustrie in verband met de sereh of zeefvatenziekte. Arch. Suikerindus. Nederl. Ind. 15: 557-589. Ap. 1917. (Meded. Proefstat. Java-Suikerindus. Landb. Ser. 1917, no. 5). Harter, Leonard Lee, and Jones, Lewis Ralph. Cabbage diseases. U. S. Dept. Agr. Farmers' Bul. 925, 30 p., 13 fig. 1918. Hemmi, Takewo. On Septoria parasitic on the cultivated Chrysanthemum. Bot. Mag. [Tokyo] 31: (309)–(325), illus. D. 1918. [Literature], p. (324)–(325). Hodgson, Robert W. Some abnormal water relations in citrus trees of the arid southwest and their possible significance. Univ. California Pub. Agr. 3: 3754, pl. 12. S. 1917. Hoffer, George N. An aecium on red clover, Trifolium pratense L. Proc. Indiana Acad. Sci. 1916: 325-326. Uromyces fallens? 1917. and Holbert, J. R. Results of corn disease investigations. Science n. s. 47: 246-247. Mr. 8, 1918. "These studies are all bassed on the ear-to-row test." Howitt, John Eaton, and Jones, Dan H. The more important fungus and bacterial diseases of vegetables in Ontario. Bul. Ontario Dept. Agr. 258, 47, [1] p., illus. Ja. 1918. Hughes, H. D. Improved method of fighting smut in oats. Iowa Agr. Expt. Sta. Circ. 45, 8 p., illus. 1918. Hutchins, David Ernest. Insignis-pine disease. Jour. Agr. New Zeal. 16: 37. Ja. 1918. Hutchinson, C. M. A bacterial disease of wheat in the Punjab. Mem. Dept. Johnston, John Robert, and Stevenson, John A. Sugar-cane fungi and diseases of Jones, Lewis Ralph. Disease resistance in cabbage. Proc. Nat. Acad. Sci. 4: 42-46, illus. F. 1918. Keitt, George Wannamaker. Control of cherry leaf spot in Wisconsin. Wisconsin Agr. Expt. Stat. Bul. 286, 11 p., illus. 1918. |