734 



HORTICULTURE 



June 9, 1917 



AMERICAN ROSE SOCIETY 



ROSARIANS VISIT ARLINGTON. 



A better day could not have been 

 wished for than when the members 

 of the American Rose Society and 

 their friends made the annual pilgrim- 

 age to the Government rose test gar- 

 dens, at Arlington, Va., on June 4. 

 The day was in marked contrast with 

 that of last year and the year before 

 when the trip was made through mud 

 that clung to the walkers. 



Prof. L. C. Corbett delivered the ad- 

 dress of welcome, following his intro- 

 duction .by President S. S. Pennock. 

 He told of how the rose garden had 

 come into being, through the co-opera- 

 tion of the American Rose Society 

 with the Department of Agriculture, 

 and the purposes for which it was 

 started. 



J. Horace McFarland made a plea 

 for "business as usual." He referred 

 to what he termed the hysteria of 

 some of the people of the country who 

 seemed to believe that no one should 

 talk anything but about the war, and 

 should expend his efforts along all 

 war lines. Under this scheme of 

 things there would be no place for the 

 florist. 



Assistant Secretary Vrooman, of the 

 Department of Agriculture, took the 

 opposite view. 



Those who registered with the sec- 

 retary included Dr. E. M. Mills, Syra- 

 cuse, N. Y.; E. G. Hill and Gurney 

 Mann, Richmond, Ind.; Benjamin 

 Hammond, Beacon, N. Y.; Miss Kath- 

 erine H. Nelly, John Richardson, and 

 Edward Kress, Baltimore, Md.: G. E. 

 Anderson, Twin Oaks, D. C; B. W. 

 Anspon, College Park, Md.; B. A. 

 White, Ithaca, N. Y.; Roger Murphy, 

 Urbana, O.; Frank E. Good, Spring- 

 field, O.; J. Horace McFarland, Harris- 

 burg, Pa.; I. W. Staalman, Oakton, 

 Va.; Mr. and Mrs. Thomas N. Cook, 

 Watertown, Mass.; Joseph Heacock 

 and James W. Heacock, Wyncote, Pa.: 

 A. Patten, William I. Hough, P. W. 

 Kuehn and R. W, Frischkorn, Brook- 

 land. D. C; E. J. Forward, East Falls 

 Church, Va.; S. S. Pennock. F. J. 

 Michell, Jr., and Robert Kift, Philadel- 

 phia, Pa.; Prof. F. L. Mulford, Wil- 

 liam F. Gude, C. Corbett. D, N. Shoe- 

 maker, Adolph Gude. Otto Bauer, 

 George Field, Ernest Gude. Chas. E. 

 P. Gersdorff, R. L. Jenkins, George W. 

 Hess, C. M. Jenkins. M. Behrend, Geo. 

 C. Shaffer. Prof. David L. Fairchild 

 and Mr. Peters, Washington, D. C. 



It was voted to have made a gold 

 flag pin that would bear an appropri- 

 ate inscription on the back, tor pres- 

 entation to Dr. Walter Van Fleet in 

 appreciation of what he has done in 

 rose production. 



At Twin Oaks, D. C, the visitors 

 were the guests of Mrs. Charles J. 

 Bell. 



ROSES COMMENDED. 



The judges at the annual inspection 

 June 4 of the National Rose Test Gar- 

 den at Arlington Farm, Va., noted the 

 following roses as worthy of special 

 mention. 



Teas and Hybrid Teas: Laurent 

 Carle, Gruss an Teplitz, Lieutenant 

 Chaure, Mary Countes of Illchester, 

 Mme. Paul Etiler, Dorothy Page Rob- 

 erts, Mme. Jules Gravereaux, Lady 

 Ursula, La Tosca, Mrs. Wakefield, 

 Christie-Miller, Lady Ashtown, Gus- 

 tave Grunerwald, Countess of Gosford, 

 Konigan Carola. 



Dwarf Polyantha : Katherine Zeimet, 

 Baby Tausendschoen, Ellen Poulsen, 

 Mrs. Wm. H. Cutbush, Baby Dorothy, 

 Trlomphe Orleanaise. 



Climbers: Countess M. H. Choteck, 

 and Bess Lovett. P. L. Mulfokd. 



INVESTIGATIONS IN ROSE DIS- 

 EASES. 



Last year in response to a letter 

 from President Pennock of the Amer- 

 ican Rose Society, thirty-two florists 

 very generously contributed toward 

 the investigations in rose diseases 

 which were carried on by Dr. L. M. 

 Massey of the Department of Plant 

 Pathology at Cornell University. Dr. 

 Massey has put in considerable work 

 on this problem during the past year 

 and has several lines of investigation 

 well under way. It is the feeling of 

 the officers of the American Rose So- 

 ciety that Dr. Massey should continue 

 his work during the coming year, as 

 was outlined in the project of a year 

 ago. At that time it was stated that 

 it was expected the investigation would 

 be on a two-year agreement. Last 

 year the American Rose Society 

 pledged itself to support Dr. Massey 

 while in the field one-fourth of the 

 time, and that the cost would not ex- 

 ceed $1,000, of which sum $,500 the 

 first year and $250 the second year 

 would be for traveling and other 

 special expenses. The rest of the ex- 

 penses of the. investigation have been 

 borne by Cornell University. 



Dr. Massey carries on the major 

 part of the outside work during his 

 vacation periods, when he is free from 

 college duties, and can visit commer- 

 cial ranges. Laboratory research is 

 carried on during the college year. 



In this issue there appears a pre- 

 liminary report of Dr. Massey's work. 

 It will be understood from the nature 

 of the project that definite results 

 cannot be given in so short a time. 

 It seems, however, that Dr. Massey's 

 work during the past year has opened 

 up some wonderfully valuable lines of 

 investigation, which should be con- 

 tinued. 



It is hoped that a large number of 

 men interested in rose growing who 

 did not contriljute to the work last 

 year, may feel interested to do their 

 part this year. All subscriptions 

 should be sent to E. A. White, Secre- 

 tary American Rose Society, Ithaca, 

 New York. 



PRELIMINARY REPORT OF THE 

 PATHOLOGIST IN CHARGE OF 

 INVESTIGATION OF DIS- 

 EASES OF THE ROSE. 



The investigations covered more 

 or less briefly in this report were he- 

 gun August 1, 1916. During the first 

 four months much time was spent in 

 visiting rose plantings in northwest- 

 ern United States, making a survey of 

 diseases. This seemed desirable in 

 order to acquaint us with the various 

 diseases, together with their range and 

 the extent of injury caused by them 

 in this country. With these facts in 

 mind suitable plants and materials 

 have been collected for experiments 

 now under way which will prove of 

 the greatest value to growers of roses. 



The gardens and greenhouses of 

 about fifty rose growers have been 

 visited. The number and extent of 

 the diseases present have been noted 

 and specimens taken for further study. 

 Probably an equal number of growers 

 have also materially aided the work 

 by sending in specimens. These speci- 

 mens have been examined and the 

 grower advised as to the cause and 

 control of the disease so far as our 

 present knowledge and experience 

 allow. If the trouble proved to be new, 

 of unusual interest or of a serious 

 nature, special work has been started 

 to determine the unknown facts re- 

 garding the disease. 



Diseases Noted — Old. 



The survey and correspondence with 

 growers has shown the most important 

 rose diseases in order of importance, 

 to be (1) black spot, (2) mildew, (3) 

 crown gall, (4) stem canker, (5) 

 Phyllasticta leaf spot, (6) rust, (7) 

 bud rot, (8) other leaf spots. Practi- 

 cally all of these diseases are always 

 present and take from the growers 

 yearly tolls of surprising magnitude. 

 It is not uncommon to flnd gardens 

 and houses with all the plants com- 

 pletely defoliated by ravages of the 

 leaf spot diseases, especially black 

 spot, thus making the plants unsightly 

 and so reducing their vitality that 

 they are susceptible to attacks of 

 other fungi, from which roses are or- 

 dinarily immune, and to frost injury. 

 It is unnecessary to mention the dam- 

 age done by mildew, while there is an 

 ever-increasing demand for informa- 

 tion relating to crown gall, stem can- 

 ker, rust and bud rot. Unfortunately 

 very little is known regarding the 

 control of most of these diseases; and 

 many points remain to be investigated 

 concerning the control of such com- 

 mon and well-known diseases as black: 

 spot and mildew. 



