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LIVe ariu racglcaî , to-)forth shore amateur gardeners. Thce,;Uarticles, appeari 'ng each week, inelude jnforni;t lion on the genei-al subject of garden plannng and care, soil and plant physi- ology and related subjeets. Dr. Fonder ls associated with the Cýaldwel Seed company. at 1502 Sherman avenue, Ev- anston, where he rnakes hi.s headquar- ters. By D r. J. F. Fonder Control of Cedar-.4pple Rusi How lany times has it been said that the only control- for Cedar-Apple: Rust is the renioval of the. Red Cedars? Just why we should4 pick on the. Red Cedars is flot apparen t because. they are just as- beaàutiful and just as effective ini their prOp- er places as . are the alternate hosts of this disease. the ornamnental Crah apples and Hiauthorns. .,Ne coulId control1 the disease as wefl by remnoving the latter specimens as by rernovinig the Red Cedars., Spraying la Answer But. it is unnfeessary to rer-nove either of thcse plants to controli *Cedar-Apple Rust. 'Ne have suffici- ent experimentai evidence and prac- tical field tests to demnonstratu that1 this serious. disease cati be controlled, adequately without sacrificing either2 of these ornarnental plants. Thei certain sulphur sp)ray's om both the( orniametital apples and the Red1 Cedars. Perhapls you have () ily Red Cedars or offlîy Crabapplus or Hlaw- E thornis, but stili these are- slbject to t Apple Riust depends to such a large eXtent upon the application of the suiphur spray at the correct time that it would appear advisàble to enlist the aid of a tree expert if any num- ber of, trees are involved,, uniless -the ýservices of a private gardener are available. This wiII no n!' pemi fabetter cntO f the rust,'b ut. wil lso probably save materials. According to- the Arnold Arbore- tum in Massachusetts, abo .ut a ninety- five, per- cent control Of. this rust' can be secured ýthrough the use of a very. finely divided suiphur sold utide the trade name Of Unco ColIoidal .Sul- phur., This sulphu.r should be, used throughout' the spraying schedule at the1rate.of 6 pounds to 100 gallons of wate. his also recommended that 2 pounds of a spreader and sticker,, sold ýas S.S.S. spreader, should be used, in cohjunction with the Linico Colloidal Suiphur. Further informa- tion on. these eroducts, and a more complete spray schedule, will be sent. anv 'reader upon applcation « tôthé, editor. If every person owning either Red Cedars or ornamental.Hawthorns and Crab Apples would cooperate, it would be possible to bring Cedar- Apple Ruist under control within a f ew years. We should like to have comments from any . reader, who bhas had experience with this disease and any suggestions as to how a more effective campaien against it, without ale navinig spent .the winter at te171Mi tEasoUL7 Drrington hotel in Evanston. [ý1Mi n t.Easf n.7 INNE'R.SPRING Ma.ttresses. $22.50 value MA E- malt ses reïàm ode as Iow os $3.95 sPrayenî, regardless of apparent isola- tion. Cedar-Apple Rust (G. Juniperi-Vir- gitnianae) requires twý%ohosts for the copletiori of iUs life. cycle.. Each sprFing during, warm i,,rains. the gela- tinous . "apples" present oni certain Red Cedars mature spores. (basidio- spores) ivhich are blowvn, to the sus- ceptible ornamental Hawthornis and ,Crabapples, as xvell as to,,apple or- charçis. These spores attach to the leaves, branch&s, or fruit. and, pro- Sclzool Invites to an Exhibition 1521 Sb An exhibit of projects and .studies of the Fîrst Congregational Church schonlis being, held ini Pilgrim H-all, from 5:30 to 8:30 o'clock Thursday cve.ning, May 20. There will be spe- cial feaitires display'ed for the bene- fit of those visitors who are un- farniliar wit.h the type of work the 'Chtircli school is doinz. Al ill m2DP1I. N' hernion Ave. Evans$.m For your we have installed this Uni. 2820 ustiaIly about july 15. Uecause sul- 'e.t(li01 VL>"" "iilyliiib Phur formns*a protective cover on he exhibit,' with special' booths .Red Cedars for a longer period than from variQus dupartnents, i s planned on, the. broad Ieaved plants, it is pôs- byv a comrittee from the Churn Sible to protect thern against inifec- school members. Those whfo worked tion by spraying every3 weeks fromi on* the projeets will' be -present to about July 15 until three -or four i-xplain the details, and answer ques- sPrays have bee,!n applied. It is not tions concerning the work heing done Possible to say definitely. just whenl bv the- schôol. 607 Davis S*ree. I and, Evoasto. c.onvenience 95 Uni. 2820 Rif