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JANUABT 7, 1909. 



The Weekly Florists^ Review* 



Cattleya Lawrenceana as Freshly ImportecU 



b7 crossing Antoine Eivoire with Sou- 

 venir de Victor Hugo. A secolid prize 

 medal, offered by the Eose Section of 

 the National Horticultural Society of 

 France, was won by William Paul & Son, 

 Waltham Cross, England, with Mrs. Dud- 

 ley Cross, a variety somewhat like Marie 

 Van Houtte. Another second prize, 

 given by the French Rose Society, fell 

 to Peter Lambert, Trier, Germany, for 

 Frau Oberhofgsertner Singer, a H. T. 

 derived from Julea Mar got tin crossed 

 with Mme. Eugenie Boullet. 



RED SPIDER ON ROSES. 



Enclosed you will find some leaves 

 from our Bride and Maid roses. The 

 leaves are falling and the roses have al- 

 most quit blooming. Please tell us the 

 trouble and give a remedy for it. 



A. W. C. 



Though there may be some fungoid 

 trouble, which, owing to the shriveled 

 condition of the leaves, I am unable to 

 detect, the main trouble is a heavy dose 

 of red spider. The most effective remedy 

 for this is cold water. Spray the foliage 

 thoroughly once a day during bright 

 weather. In order to dislodge the pests, 

 a pressure of forty-five to sixty pounds 

 is required. Bibbs. 



SCALE INSECTS ON FERNS. 



Enclosed you will find a fern leaf 

 which has scales on it. Kindly advise 

 me as to what I can do to destroy them 

 in my palm and fern house. What can 

 I spray withf How warm should my 

 palm and fern house be kept? 



_ A. V. B, 



The scale insects in question prove to 

 be the same troublesome pests that are 

 causing anxiety to many growers of 

 nephrojepis, and the best way to fight 



them is by first cutting off the worst 

 fronds from the ferns, and then spray- 

 ing them once a week with solution of 

 extract of tobacco, the solution to con- 

 sist of one part of Eose Leaf Extract of 

 tobacco to fifty parts of water. 



A night temperature of 60 degrees is 

 right for a mixed house of palms and 

 ferns, and 75 degrees during the day, 

 with some ventilation. W. H. T. 



DIELYTRA FOR EASTER. 



We have a few dozen Dielytra specta- 

 bilis in pots outdoors covered up, alcflig 



with the spiraeas. We wish to have these 

 for Easter. Shall we treat them just 

 like the spirseas, or do they require dif- 

 ferent treatment? H, C. O. 



Do not start your dielytra yet. Keep 

 in a frame or cold house. You will have 

 better plants if you do not subject them 

 to a high temperature. Place in a tem- 

 perature of 45 to 50 degrees at night 

 about the end of January. In such a 

 house it will flower in time for Easter, 

 Dielytras do not require as much water 

 as spiraeas, as they do not root so freely. 



C. W. 



CATTLEYA LAVRENCEANA. 



That beautiful and extremely useful 

 cattleya, Lawrenceana, is not at all com- 

 mon in cultivation, and the recent receipt 

 of some 250 plants by an American firm 

 is, I believe, the first consignment which 

 has arrived in America or Europe for a 

 long time. C. Lawrenceana was discov- 

 ered in British Guiana in 1885, and was 

 named, like quite a number of other 

 choice orchids, in honor of Sir Trevor 

 Lawrence, president of the Eoyal Horti- 

 cultural Society of England, whose or-^ 



chid collection at Burford Lodge," near 

 Derking, in Surrey, has for several dec- 

 ades had a world-wide celebrity. 



The flowering time of this cattleya is 

 in late March or early April, a period 

 when cattleya flowers are far from plen- 

 tiful, which renders it of special value 

 commercially. The flowers somewhat re- 

 semble those of C. Skinneri, but are 

 much longer, almost equaling C. Trians 

 in size. The color is purplish lilac. The 

 center of the lip is light yellow, the re- 

 maining portion being of varying shades 



