FT* 



August 2, 1906. 



The Weekly Florists^ Review* 



639 



would take too much time to enter into 

 every detail. 



Diseases of Roses. 



Among the many diseases the rose is 

 subject to, the most common and beat 

 known are mildew and black spot, both 

 being fungous diseasee. Sickly, poorly 

 ventilated or overfed plants are the first 

 attacked. The disease is produced by 

 sudden changes of the temperature, 

 draughts of air, too much atmospheric 

 moisture, and numerous other causes 

 mostly due to poor ventilation or heat- 

 ing. 



To prevent them means to overcome 

 all these defects, which is possible, but 

 not so easily done. Mildew, to which 

 our teas are most susceptible, is the 

 easiest to combat. Sulphur on the pipes, 

 or dusted on the foliage, is the best 

 remedy. The American Beauty is most 

 susceptible to black spot. As a remedy, 

 carbonate of copper is recommended. 

 Air-slaked lime and sulphur are also 

 used, but it is best to pick off 

 all the spotted leaves as soon as 

 they appear and burn them, keep 

 sulphur on the pipes, give plenty of air ; 

 in short, work against the conditions 

 which have brought the diseases about. 



losects on Roses. 



The insects which infest roses and 

 come mostly to our notice are greenfly, 

 red spider, eel worm and thrips. The two 

 first named are easily kept down, green- 

 fly by proper ventilation, tobacco fumes 

 and the various forms of nicotine. Red 

 spider enjoys a warm and dry atmos- 

 phere, and its presence tells us that we 

 have not made the proper use of the hose. 

 Good, hard syringing on bright days, if 

 only done well once or twice a week, 

 is the best preventive and cure. Eel 

 worm, a pest which infests the roots and 

 means certain destruction to the plants, 

 can be kept in check by the use of lime 

 or lime water. Wherever it is present in 

 the soil, it is best to resort to grafted 

 plants, as Manetti is not susceptible to 

 eel worm. 



The most troublesome of all is thrips. 

 It lodges in the buds and flowers. The 

 damage it does to rose growers amounts 

 to thousands of dollars every year. It 

 is in itself easily destroyed, but owing 

 to its habit of secreting itself, so far 

 nothing has been found which will ex- 

 terminate it, and at the same time not 

 injure the plants. Various insecticides 

 are recommended to keep them in check. 

 Those which appear to give the best 

 satisfaction are: Paris green diluted in 

 water, fumigation with tobacco and red 

 pepper, or the different nicotine extracts 

 used either on the heating pipes or on 

 the foliage; any of them means certain 

 death to the thrips if caught out of its 

 hiding place. It is therefore necessary 

 to continue to use these two or three 

 times a week if any satisfactory result 

 is expected. 



Summing up the whole rose culture, 

 we find that whenever we do not observe 

 the laws governing a healthy plant 

 growth, we invite disease and insects to 

 feast on the roses, and thus curtail our 

 profits. 



Canton, O.— Chas. F. Blanc is build- 

 ing a new house 12x90 feet for lettuce 

 and violets. 



I LIKE the Review best of all; it is 

 very interesting and instructive. — LuD- 

 AVIG ZiMMER, St. Louis, Mo. 



Paul Berkowitz. 



PAUL BERKOWITZ. 



The Review takes pleasure in present- 

 ing this week the portrait of a friend 

 who will need no introduction to many 

 readers. Paul Berkowitz, of the firm of 

 H. Bayersdorfer & Co., of Philadelphia, 

 has hosts of friends in every state in the 

 Union and in Canada, who look forward 

 with pleasure to his visits each year. To 

 these any remarks of mine will seem su- 

 perfluous. For those less fortunate, let 

 me add, a man of tried integrity, com- 

 manding respect, whose genial personal- 

 ity draws men to him, a man to be 

 trusted and liked almost at sight, a man 

 whose happy laugh convinces you that 

 he is a boy at heart, and makes you glad 

 of it. 



Mr. Berkowitz joined the firm of M. M. 

 Bayersdorfer & Co. in 1879, spending 

 three years in the florists ' supply busi- 

 ness, and then going south in another 

 line of business. In 1889 he returned to 

 the firm, then H. Bayersdorfer & Co., 

 and he has since aided the present head 

 of the house in building up the business 

 to its present vast proportions. The 

 advent of these two young men to the 

 firm marked an epoch in the florists ' sup- 

 ply business of the whole countrv. 



'Phil. 



SHADE FOR FERNS. 



We have planted on the south bench 

 of a three-quarter-span house, Boston, 

 Piersoni and Scottii ferns. Is it best 

 to shade these or give them the full sun- 

 light! We have a number of shutters 

 made of lath split in two. Would these 

 be good if shade is needed? On the 

 north bench we are growing in pots 

 Asparagus plumosus and Sprengeri. Is 

 it necessary to shade these? N. & T. 



The Boston and Scottii ferns will cer- 



tainly not be benefited by shade. If 

 you want to use the slat shades (the 

 best shading there is) for a few hours 

 on hot, bright days, it will help to keep 

 them the beautiful green which is 

 natural. Remember we are a month past 

 the time when the sun is most powerful 

 and every day it is receding. The 

 nephrolepis needs no shade if the roots 

 are not neglected for water. They are 

 natives of Central America and the 

 islands known as the West Indies. 



The same can be said of our orna- 

 mental Asparagus plumosus and Spren- 

 geri. They nee<l no shade except to 

 preserve their color. It is late now to 

 apply shade for almost anything. After 

 our long, dark winters, when the sun 

 bursts forth with burning rays in April 

 and May is the time when the soft 

 foliage of plants is benefited by shade, 

 not now, when they are hardened to the 

 fullest light. W. S. 



KANSAS QTY. 



The Market. 



The market remains about the same 

 as last week, except that sweet peas are 

 almost gone. The early asters are now 

 in full crop, and go a great way in lielp- 

 ing to make a show in the windows, as 

 roses can hardly be obtained. Carnations 

 still remain scarce, and what few come 

 in are soon taken up. Asters seem to be 

 free of disease this year, at least for the 

 present. In passing a large patch the 

 other day, we did not see one diseased 

 aster plant; all looked thrifty and 

 healthy. Most of the florists are busy 

 now clearing the houses of the old carna- 

 tion soil and repairing old benches. 

 Some have been planting for the last 

 two weeks. We have had two good rains 



