May 6, 1916 



HORTICULTURE 



629 



ROSE GROWING UNDER GLASS 



^ ^ CONDDCXED BY 



Keep After Fly 



to open pretty well while on the plants' they will he 

 iii'Mrly worthless by the time tJiey are sold to the oou- 

 suiner. In houses tliat are to be planted early it will 

 he waste to leave any eyes when cuttint;, so it will lie 

 best to cut the roses as "far back as possible, getting all 

 there is to the stem. It isi siirprisini;- wlmt differenee 

 this will make in the gradintj, as a large niimlier of the 

 roses that were No. I's foi'merly will he extras with the 

 additional stem. This w ill make some difference in the 

 priee, making up for the loss by lower prices now paid 

 for roses in the wholesale markets. 



Kow that the warm weather is here at last, it may 

 not always be possible to fumioate when the plants need 

 it so no "time shdiild be lost in smokinir the houses rf 

 thero is I'veii a trace (d' tly in them. The ily will in- 

 crease in nund)ers very fast and if allowed to multiply 

 unmolested, they will soon f«ver the plants and suck 

 their veiy life out. Every fumitration should be fol- 

 lowed by a good syrinuing- if at all possible and for this 

 reason it will be best to smoke the houses early just as 

 the dawn is breaking. Smoking at tliis time will leave 

 even the old fly pretty sick about the time the hose 

 conies along, and once knocked oft' the plants tliey will 

 seldom muster enough strength to return. Where the 

 houses have been smoked regularly the plants ought to 

 be pretty clean, the same being true of plants that have 

 been sprayed. With roses we have found it easier to 

 keep the plants clean by fumigation, as it is ditt'icult 

 to reach well under the leaves where the flics stay and 

 all sprays used are contact poisons and have to hit the 

 fly to kill same. Do not use tobacco stems for smoking 

 except in houses carrying the yottng stock, for the 

 smoke contains a great many gases injurious to the 

 plants, especially to the flowers, and if used in houses 

 where roses are in bloom, it is likely to bleach these 

 badly or else burn their centers out. Tobacco stems will 

 be useless in the walks from now on for there will be 

 too much air on the houses. If there are [ilenty of 

 these on hand, however, they can te used right around 

 the plants as a mtilch, being careful not to apply them 

 too thickly. The fumes from these will help drive the 

 fly to the tops of the plants where it will be easier to 

 kill them; at the same time they will act as a mulch 

 and the plants will get quite a little plant food from the 

 stems. They will also help keep otit a great many in- 

 sects which enjoy living in the coarse mulch around the 

 plants. 



Cutting Roses 



With warm weather rcises will have to be cut a little 

 tigiiter than was customary during the winter months, 

 moi-e so on places having no ice to keep them. They 

 will open very fast from now on and if they are allowed 



Tying 



Except in the Beauty hciuses. the loses will need 

 very little tying from nnw (in: going over them once iii 

 a while to straighten them out here and there will be 

 aiiout all that it wA\ pay to do to them. With Beauties 

 it is dift'erent, as these will grow like wild now. and if 

 they are not tied U]i they will lir all "\ci- and will 

 amoimt to very little. Il will lu.l W nci(-s:ii-\ to tii- 

 them down so much though a.- they will M't ipiitc freely 

 now and will not harm the sIku-Iit (UU's by shading, as 

 the sun is much stronger and its i-ays are more pene- 

 trating. Those that are too tall had better he 1icd down 

 so that they will have nice straight stems, as otherwise 

 they will decrease in value, and with plenty of roses 

 coming to the market-s. will he diHicult lo sell. 



Blackspot 



This may ap)iear here and iIhm-c ihriiugh the houses, 

 among the Beauties, Ophelias, even Shawyers. But this 

 should not cause the grower to worry, as it usually does 

 little harm as long as it stays on the old plants. If it 

 were in the fall it wcuild he anotlu'r thing altogether but 

 in the spring we have never known to have any serious 

 trouble with it. (Jenerally this outbreak can be traced 

 to poorly drained houses. The soil around the outside 

 is usually very wet in the spring, and if no means of 

 drainage is provided the waste water froin watering aiul 

 .syringing will not soak away as it does in the fall and 

 summer, making the houses very dam]). This, and run- 

 ning the houses to i-old towards morning, will largely 

 be responsible for s]iot ami I'or mildew. A .steam pipe 

 around the house all night with a crack of air on will 

 do a great deal tow aids pie\c'nting both diseases. .\ 

 good (lusting of lime every night after watering or 

 svringing will also hel]) dry the air. See that the wa,ste 

 water drains away, instead of standing under the 

 henclies and see that no suid'aee water washes in from 

 the outside. .\11 had phu cs in the glass where water 

 drips shoidd he I'epaiivd as soon as time will allow, so 

 that the plants will not he wet all the time it is foggy 

 or wet. We ha\(' had plenty ol' <\w\\ weather and we 

 may have more. 



nuTit of cut flowers, that tliey be first judged to deter- 

 mine there respective position for their cultural excel- 

 lence and afterward plaeed in the hands of an artist to 

 use tliem as he sees fit, to make the "Show." The public 

 kiuiws nothing and probably caics but little for the fine 

 distinctions of cultural excellence. It would be difl'icult 

 for them to distinguish any dilference between first and 

 second piize flowers. On the other hand they can dis- 

 tinguish and a))pi'eciate the work of an artist in arrange- 

 ment from one that is not. 



The recent show in I'hiladelpliia was a disappointment 

 from an artistic standpoint, l^erbaps the least defective 

 exhibit from this view was llr. Roland's group of acacias 

 and even they would have appeared to better advantage 

 had the border of heaths been absent. The roses in 



themselves would have made a ■•show'" had they been 

 used to advantage in conjunction with other subject.s 

 and in the hands of an artist in arrangement. .Vs they 

 were, staged row after row, they lacked any sign of ar- 

 tistic arrangement, and had the cards been removed iu)t 

 one per cent, of those who paid admissicm could have dis- 

 linguished between the "'first'' and the last. Furthernuire. 

 if ilie subjects were used with the view of artistic effect 

 in the show as a whole half the material, would have suf- 

 ficed. 



BnUimore, Md. 



