JULY 28, 1910. 



The Weekly Florists' Review. 



47 



Vegetable Plants 



C»bbaff0« All Head, Succession, Second Early, 

 Early Summer, Flat Dutch, Sure Head, Danish 

 Round and Ball Head, at 20c per 100, $1.00 per 

 lOOO; 10,000 and over, 85c per 1000. 



Celery. White Plume, Golden Self-Blanching, 

 Giant Pascal, Golden Heart and Boston Market, 

 20c per 100; 11.00 per 1000; 10,000 and over, 85c 

 per 1000. 



CASH WITH ORDER. 



Manh 



R, Vincent. Jr., & Sons G0M'""^d* 



Mention The Review when you write, 



Vegetable Fordog. 



WHITE FLY ON CUCUMBEES. 



1 am thinking of putting up a green- 

 house for cucumbers and would thank 

 you to advise me in regard to the ef- 

 fect of white fly (aleurodes) on cucum- 

 ber vines. I have been told that white 

 flies are a great enemy of cucumbers 

 and yet I have seen these vegetables 

 growing in greenhouses where white 

 lies were plentiful, without any injury. 

 I would plant cucumbers in the early 

 fall — October 1 to 15 — and during the 

 months of November, December, Janu- 

 ary and February the white fly is not 

 on the wing. 1 should think for this 

 reason there would be no danger from 

 white fly. E. G. M. 



White flies are quite fond of cucum- 

 bers, but are not as injurious as most 

 other greenhouse pests. They are not 

 as large as they look and damage is not 

 done so quickly as by the common green 

 aphis. They cannot be killed off ex- 

 cept by fumigating with hydrocyanic 

 acid gas, but are killed with very light 

 fumigations of the gas. If they get into 

 the house in the fall they will probably 

 give some annoyance all winter long, 

 unless held in check by occasional use 

 of the gas. H. G. 



NEMATODES OE EEL-WOSMS. 



There are knots on the roots of some 

 tomato vines that are being thrown out. 

 Naturally, some of the soil will be left 

 on the benches. Will the insect or 

 disease infest the next crop because of 

 this soil? The soil that has been taken 

 out is wanted next year. Will freezing 

 kill the pest in this soil? Is there a 

 remedy? E. B. 



You no doubt have the nematodes or 

 the root galls, called eel-worms, and un- 

 less you clean the benches and scrub 

 th( m thoroughly and whitewash with 

 good lime, you will surely have them 

 sgain next crop and probably worse. 

 Clean house most thoroughly; use clean, 

 ?ew soil, and let no old soil get mixed 

 m witli it when planting. The plants 

 should be potted into clean, new soil 

 ^Isc, and started on a clean bench. 



If your soil is spread out thin, so as 

 to thoroughly freeze through, there will 

 ?e little danger in using it over again 

 '0 a year or two, but new soil is always 

 ^visable. Sterilizing the soil will also 

 exterminate the pests. H. G. 



TO CLEAN OLD GLASS. 



I have dismantled my greenhouse and 

 ^ish to use the old glass. Will you 

 kindly tell me what will remove the 

 old paint and dirt from the glass? I 



Stops bruising of foliage 



Doubles 

 your crops! 



CKINNER 

 Jystem 



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The Skinner Irrigation Co. 



DEPT. H 



TROY, OHIO 



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The Florists' 

 Manual 



A Business Book for Business Men 

 Second Edition 



Thorongrhly Revised and BroaKbt 

 up to Date 



No dry-as-dast botanical olassifica- 

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FLORISTS* PUBLISHING CO., S?^^S»f: CHICAGO 



tried lye, but it does not remove the 

 dirt that forms between the laps. 



C. A. B. 



If you cannot remove the dirt on the 

 overlap by the use of concentrated lye, 

 it will be a hard job to get it oflf. You 



might try corrosive sublimate. Great 

 care must be used in handling this 

 chemical, however, as it possesses 

 strong caustic properties, and will burn 

 the flesh wherever it touches. 



Consult some painter. Painters gen- 

 erally have a recipe for this work. 



fe, 



