li-j fo^vA AfA/>r.\:v or sen nci S'. 



disojij^c IS wtdcsprcad in hotii F>ur()|)(' and Aincrica.' iii 

 Iowa it has Ix-c-u known fur sonic time as Dr. Ilalslcd writes 

 nic, and orcurs in tliii'crcnt parts of tlie State. Mr. l>ea<-li 

 sent some i;-ood material from Atlantic. in tliis abstract I 

 cannot cntei" into the dcAclopment of the funi^us antl its life 

 history nor is it necessary a-^ tliat is fi-ccly ,L{i\'en l»y authors 

 cited in foot-notes, 'line sjjores, howe\ei, seem to \:\Yy con- 

 sideral»l_\-. Mr. Kelsey, a special stndent in tl)e laboratory, 

 foinid that a aood many lea\cs were, nnifovndy ltro^\ n, and 

 that such leav(^s had an abnndance of black pustules inde[)en- 

 dent of the spots, and in tiiese the spores were Sarii'er and 

 much iK'tter develo[)ed than in the pustules found in tlic 

 spots. Tile disease is known to occur on several species of 

 Pi/rifs, {('i/(lonia, tncspPus), and on a closely related li'cnus 

 (Jutoneaster. It is (juite trouljlesome at times on the fruit 

 of the quince and pear. It also occurs on the ap[)le (Pi/fiis 

 4iialus), hut is not connnon. Amon-x a row of seedlini;- jx'ar 

 trees in the colleo'c nursery a few ajipie tree seedlinits ha(5 

 accidently i>-otten in the leaves of th<'se antl th(\\ were also 

 att'ected, thouo-li the fnuL>-us M'as found on no other trees on the 

 Ci'ounds. Kxperinients with fungicides have not I>een nnide 

 on the gnmnds, hut GallowayUias recently shown tliat the 

 ai)plication of funiri<"ides at the [)roi)er time has pr<ued bene- 

 ficial. 



A CHERRY DISEASE. 



V.\ I'KOF. I,. H. I'AMMKl. 



The past season has been a ^•ery severe one on a good many 

 of our cherry trees in the experimental orchards at Ames. 

 Several kinds of parasitic fungi have been especially common. 



' — Xew Vork; Arthur, Report New York Agricultural F.xperiment Station, 18S4 p ti. and 

 1S-5, p. 276. llluiois, F. S. l-.arl, Prairie Farmer Fetj. 12, 1887. New Jersov; Hyro-i O. H;il'-tei). 

 Rural New Yorker. Oeorgia, New Jersey; P.. T. Galloway, Report the Chief of the Sc lion 01 

 \L-uetablc Palholoiiy, 188S, p. 357. Kurope: Sorauer, Pflan«Mi Krau Uheiten, Set.oiul l.dtioii. 

 Vol. II, p. -iji. Frank, Die Krau Kheiten derPflanzen, Vol. 11, p. Sqo. 



3 — F.xperiments in the treatment of Pear Leaf Blight and the Apple Powdery Mildew, C:rcui u- 

 No. 8, United States Department ol Agriculture, Dlvson of Vegetable Pathology. 



