60 



The Weekly Florists' Review* 



NovmiBEK 25, 1909. 



Bay Trees 



2000 just to hand 



Bay Trees 



JUUUS ROEHRS CO. Rutherfonl, IN. J. 



Mention The Review when you write. 



NURSERY NEWS. 



AMEBICAH ASSOCIATION OF NUBSEBTMEN. 



Offlcera for 1909-10: Prea., F. H. Stannard, 

 Ottawa, Kan.; Vlce-Pres., W. P. Stark, Louisi- 

 ana, Mo.; Sec'r, John Hall, Rochester, N. Y.; 

 Treas., C. L. Yates, Rochester, N. Y. Thlrty- 

 flftb annnal meeting, Denver, Jane, 1910. 



The McKay Nursery Co., of Waterloo, 

 Wis., has purchased "seventeen acres of 

 land near that town. 



T. V. MuNSON, of Denison, Tex., is 

 on the program of the American Breed- 

 ers' Association, which meets at Omaha, 

 December 8 to 10, for a paper on breed- 

 ing the grape. Most of those on the pro- 

 gram are Department of Agriculture or 

 agricultural college experts. 



It is going the rounds of the trade 

 press in Europe that "John D. Kocke- 

 feller has ordered from Gouda, Holland, 

 nurserymen, 35,000 pine trees, with which 

 he proposes to plant a park. The trees 

 will pay $20,000 duty on entering 

 America. ' ' 



The Wichita Nursery Co., of Wichita, 

 Kan., sold 60,000 catalpa trees this fall 

 to Kev. O. N. Eoth, who will plant them 

 on his farm in Harper county, Kan., be- 

 lieving that there are few better invest- 

 ments than the planting of such trees for 

 timber, especially in western Kansas. 



VALUE OF INSECTICIDES. 



(Continued fr^om page 14 ) 

 other point in favor of the solution is 

 that it does not injure the bloom or 

 growth as fumigation often does, if the 

 solution is properly prepared and applied. 



Fumisation With Cyanidr of Potassium. 



It is my experience, after considering 

 all kinds and conditions of plants and 

 insects and greenhouses, that this mate- 

 rial, though perhaps used the least, is 

 the cheapest and most effective means 

 for fumigation. The best results are ob- 

 tained by using three-quarters of an 

 ounce of potassium cyanide, at a cost of 

 2^2 cents, and one and one-quarter 

 ounces of sulphuric acid, at a cost of 

 about ^ cent, per thousand cubic feet. 

 This method, besides costing only about 

 2% cents per thousand feet, is thoroughly 

 effective and requires little labor in its 

 application. 



As this remedy has heretofore been 

 considered by a great many florists as 

 dangerous to human life in its ■applica- 

 tion, it has been but sparsely used. The 

 solution, however, is so weak that there is 

 not the least danger to human life or 

 health if only the simplest precautions 

 are taken. 



The formula recommended is as fol- 

 lows: Potassium cyanide, one ounce by 

 weight; sulphuric acid, one and one-half 

 ounces by volume; water, three ounces 

 by volume. 



The cyanide should in all cases be 

 chemically pure, ninety-eight per cent 

 pure cyanide, and the sulphuric acid 

 he the best commercial or eighty-five per 

 cent grade. It is always best to have 



DOROTHY PERKINS 



Several thousand strong plants, 6 to 8 branches, 5 to 8 feet, fine for forcings 

 at $10.00 per 100; also a few hnndred WM. C. EGAN, at $12.00 per 100. 



Hoopes, Bro. & Thomas Company, West Chester, Pa» 



Mention Tlie Review when you write. 



California Privet 



SPECIAL 



For two wee](8 we will make Special Price 

 on car lots of 18 to 24-inch, 2-year, well- 

 branctaed and extra fine rooted stock, small 

 quantities, at low pricei. 



AspaxaKus, Palmetto and Giant 

 AreenteuU, 3-year, extra etrong;, $5.00 

 per 1000. 



JOS. H. BLACK, SON & CO. 



HIGHTSTOWN, N. J. 



Meution The Iteview when you write. 



the cyanide broken up into small pieces. 

 Generators should always be earthen or 

 glass vessels, never metal, having a gal- 

 lon capacity. In order to distribute the 

 gas equally throughout the greenhouse, 

 it is well to place the generators at equal 

 distances apart along the walks. The 

 greenhouse should be as much as possible 

 air-tight, with dry atmosphere and a tem- 

 perature below 60 degrees Fahrenheit, 

 and the generation of gas should be done 

 after darkness has set in. After having 

 placed the generators properly, with 

 water and sulphuric acid, the packages 

 of cyanide are then added, commencing 

 at the generator farthest from the place 

 of exit, and the operators should then 

 leave as soon as possible and close the 

 door. The dropping of the packages of 

 cyanide into the generators by means of 

 a cord operated from a position outside 

 the greenhouse is entirely unnecessary 

 and is now quite obsolete, as the fumes 

 from the composition are too weak to do 

 any injury. The quantity of the doses 

 must, however, always be regulated by 

 the florist from the condition of the 

 greenhouse, the plants, and the insects to 

 be destroyed. As to the time of applica- 

 tion, the table below will give the ap- 

 proximate time. It is, however, always 

 better to have the solution strong and 

 the duration of the application short 

 than the reverse, both for the life of 

 the plants and the destruction of the 

 insects. 



Table of Plants. 



Three-fourths of an ounce of potas- 

 sium cyanide to 1,000 cubic feet of space 

 for twenty to twenty-four minutes: 

 Araucarias, ageratums, alternantheras, 

 aspidistras, asters, asparagus, aquatics, 

 bulbs of all kinds, begonias, Ijougainvil- 

 leas, coleus, chrysanthemums, crotons, 

 cordylines, Cyperus alternifolius, dracae- 

 nas, dahlias, euphorbias, ferns of all 

 varieties (except adiantums), geraniums, 

 gardenias, hoyas, marantas, orange trees. 



FOR IMMEDIATE DEUVERT 



ROSES 



Bormant, field-grown, on own roots. 



Sweetheart T. Blumschen La Flamma 

 Trier Lady Gay Debutante 



Dorothy Perkins Hiawatha 



12c each 

 TausendBChon Barbier 20c each 



Clematis Panlculata, field-grown, 1-year, 



6c each. 

 Clematis Panlculata, field-grown, 2-year, 



lOc each. 

 Hydrangea Panlculata Grandlflora, 



18tov!4-ln., Cc. 

 HydranKca Panlculata Grandlflora, 



2 to 8 ft., 9C. 

 Viburnum Pllcatum, 2 to 3 ft., 12c. 

 Viburnum Pllcatum, 3 to 3^-ft., 15c. 

 Cblnese Sacred Lilies, $4.00 per 100; 



$36.00 per 1000 



Dutch Hyacinths, named varieties, (ingle 

 and double, 45 kinds. 



First size bulbs $ 6.00 per 100 



Extra large.^exhibition size 10.00 per 100 



Write for our special prices on 

 Hardy Shrubs. 



THE DINGEE & CONARD CO. 



WEST GROVE, PA. 



Mention The Review when you write. 



lemon trees, salvia, sweet peas, trades- 

 cantia, pandanus, roses, carnations. 



Three-fourths of an ounce of potas- 

 sium cyanide to 1,000 cubic feet of space 

 for twenty-two to twenty-nine minutes: 

 Palms, phoenix, livistonas, kentias, cocos, 

 sago, latanias, orchids, violets, etc. 



Three-fourths of an ounce of potas- 

 sium cyanide to 1,000 cubic feet of space 

 for eighteen to twenty-four minutes r 

 Lettuce, spinach, parsley, tomatoes,, 

 onions, beets, corn, celery, turnips; in 

 fact, all vegetables. 



It is the confidence I have in the rem- 

 edy which prompts me to highly recom- 

 mend it as the cheapest and most effect- 

 ive means for destroying the white fly, 

 plant lice and scale insects commonly 

 found in the greenhouse, without, how- 

 ever, destroying or endangering the 

 health of plants or of the operator of 

 this remedy, and I would encourage in 

 every way possible the use of this means, 

 that those insects, if not totally destroyed, 

 may still be so kept in check as to do 

 but the minimum of harm. 



BIENNIALS. 



The ground may not freeze up for 

 some weeks yet, but we can sever tell 

 when bad weather may shut in on u* 

 after the middle of November. Some of 

 the half hardy perennials and biennials^ 

 which are hardy in states farther south. 



