604 



THE GARDENERS' MAGAZINE. 



ANSWERS TO 



CORRESPONDENTS. 



Editoriial Communications should be addreeeed to the 

 Editor of the Gardeners' Magazine, 148 and 149, 

 Aldersgate Street, E.G. 



Secretariec of horticultural eooieties are invited to 

 •end early notification of forthcoming exhibitions 

 and m^etingf^, and ere requetit««d to advise U£ con- 

 cerning changes of datee. 



Specimene of plants, flowers, and fruits for naming 

 or opinion should bo sent to the Editor of the 

 Caudknkrs' M A(i \/.ink. Kn<lsloi<^h/' l*riory Park 



Kew, Surrey, and as early in the week as possible. 

 AU )iarcelfe must be t^uthoit-ntly prepaid. 

 The Editor will be glad to receive photographs of 

 gardene, plants, flowers, tree€, fruits, etc., for 

 reproduction in the Gardeners' Maoazins. He will 

 also be greatly obliged by correspondents Mnding 

 early intimation of interesting local events relating 

 to horticulture. In sending newspapers containing 

 matter to which they wish to draw attention oor- 

 respondents are requested to dii>tinc;tly mark the 

 paragraph. 



iM:r. Ai!(;oNiUM paul crampll. — 



" \\ . r. writes: Noting, under "Answers to 

 C()rres[H)ndents (page 420), yonr rpply to 

 "J. \V./' perhaps I can throw ;i litlU* light 

 on the inatt^T. Then* eertainlv no variety 

 known as I*aul ('i;irrip1oii — -indee<l, the closo 

 rcs^'rnhlaiH'c of the 1 wo names would suggest 

 that ii lias ai'is^Mi tiom a ini-take in spelling. 

 '1110 va rii't y 1 *a ill ( 'r a ni [ u ] , a single-flowered 

 <»ni', w a-> tir^i d i-i Wiil rd hy M. laMiioine, of 

 NaiH v, ill i-^'.rj, hut it \va> soint* iinn* after 



* 



thai before it hct aint' popular. Then, about 

 four years ago, it ])r<Hlueed (in, I believe, 

 more than one place) a double-flowered sport, 

 and this is now extensively grown under the 

 name of Double Paul Crampel^ and tliough I 

 havi^ nu t with it in many quarters, no other 

 naiiu\ >n far as T know, has been applied to 

 it. It a o-.hmI vliowy variety, but is never 

 likely 1m att.nii the ^amc amount of popu- 

 h\rity as the single lorni. Of tins last there 

 is a aalmon-coloured kind, wliicli lias been 



of late very frequently met with under the 

 name of Salmon Paul Crampel. It will no 

 doubt be a good deal used for bedding, as 

 last season it gave satisfaction in the few 

 places in which it was tried. 



INTERNATIONAL FLOWER SHOW IN 

 NEW YORK IN 1913.— In answer to several 

 correspondents who ask for information re- 

 garding the International Horticultural Ex- 

 hibition to be held in New York next year, 

 we may say that the European address to 

 which enquiries should be sent is. Exhibition 

 Offices, 75, Chancery Lane, Holborn, W.C. 

 The exhibition will be held from April 5 to 

 April 12, in the Grand Central Palace, 46th 

 to 47th Street, Lexington Avenue, New York 

 ritv. All exhibits for this exhibition will 

 be admitted to the building duty free. The 

 exhibition is being promoted by the Society 

 of American Florists and Ornamental Horti- 

 (Milturist«, and the European agent is Mr. 

 A. S. \randers. 



CODE DES COLEURS.— A. W. F., Ruby: 

 We hope to give you the necessary reply in 

 our next issue. 



BLACK FLY ON CHRYSANTHEMUMS. 

 — P. R., Stocksfield: I find black fly very 

 troublesome on my chrysanthemums, espe- 

 cially on the upper portion of the growths, 

 and I should be very glad if you will tell me 

 how best to get rid of the pest. — Spray the 

 infested plants with a quassia solution, or 

 dip the affected portions, if such a proceed- 

 ing is practicable. Place half a pound of 

 quassia chips in boiling water, and allows 

 them to simmer for ten or twelve hours, 

 always keeping the chips well covered with 

 water. Dissolve quarter of a pound of best 

 soft soap in eome boiling water, and to this 

 add the qxiassia extract, duly strained ; 

 stir well together, and add sufficient soft 

 water to make up five gallons of mixture. 



Spray or dip the plants on two con&e^iutive 

 days, and on the third day syringe with clear 

 water. 



BLACK SPOTS ON ROSE LEAVES.- 

 J. J., Bungay: I enclose a few rose leaves, 

 and you will find each leaflet has one or 

 more' blackish spots. One or two rose trees, 

 show more of this "spotting" than others, 

 and those most affected are losing some of 

 their leaves. This loss of leafage suggests 

 a fungus attack, therefore I shall be glad 

 if you will tell me what causes the spots, and 

 how I had best proceed to cure the trouble.— 

 The blackish spots are evidence of the pre- 

 sence of a fungus known as Actinonenia 

 rosea. So far as we are 



leaves are attacked. 



aware, only the 

 Remove and burn all 

 badly affected leaves, and^ all those that fall 

 from the tree. Spray occasionally with pot- 

 assium sulphide Sfolution, and commence 

 spraying early next spring as the buds burst, 

 and repeat the spraying at intervals of a 

 week or so. 



NAMES OF PLANTS. 



W. D., Sussex. — 1, Asparagus Sprengeri; 

 2, Jasminum officinale. 



F. B. M., Conway.— 1, Gaultheria Shal- 

 lon; 2, Ligustrum lucidum. 



S. J. C., Swaffham. — 1, Phacelia campanu- 

 laria; 2, Itea virginica; 3, Senecio macro- 

 phyllus, 



P. A., Dawlish. — 1, Helenium cupreum; 2, 

 Achillea mongolica; 3, Mertensia sibirica; 4, 

 Camassia esculenta; 5, Tigridia pavonia. 



R. B., Liphook. — 1, Calycanthus occiden- 

 talis; 2, Leycesteria formosa; 3, Diplopap- 

 pus chrysophyllus ; 4, Santolina incana. 



L. W. A., Retford. — 1, Solanum jasmin- 

 oides ; 2, Ixora macrothyrsa ; 3, Grloriosa 

 superba; 4, Selaginella caesia; 5, Dichori- 

 sandra musaica; 6, Calla palustris. 



The 



GreenKotise 



from 



to 



Gives Full Details for 



CONSTRUCTION, HEATING. 

 STAGING, VENTILATION, 

 GENERAL MANAGEMENT. 



With a List (over 300 pages) of 



POPUUR GREENHOUSE PLANTS 



giving Species, Propagation, Suitable 

 Soil, Temperature, Watering, and 

 every detail for Successful Culture. 



By T. W. SANDERS, F.L.S., 

 Editor of "Amateur fiardening, " &o 



438 Pages-Bound in Cloth. 



164 Illustrations. 



NET. 



By post, packed in box, 5/6 



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GREENHOUSE PESTS. 



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