156 



THE CANADIAN HORTICULTURIST 



June, 191 2 



Granulated 



yourself — that "St. Lawrence 

 choice a sugar as money can buy. 



3 pound bag — and compare 



grade 



granulated sugar. 



Note the pure white color of '"St. Lawrence" — its 

 uniform grain — its diamond-like sparkle — its match- 

 less sweetness. These are the signs of quality. 



And Prof. Hersey's analysis is the proof of purity 

 — "99 99/100 to 100% of pure cane sugar with no 

 impurities whatever". Insist on having "ST. 

 LAWRENCE GRANULATED" at your grocer's. 



plAWRENg 



ST. 



LAWRENCE SUGAR REFINING COh 

 MONTREAL. 



LIMITED. 



66 



EXTRA 



|6RANULATE| 

 Montreal 



you must 

 care for it. If 

 dandruff is pre- 

 sent, first eliminate 

 it by using Na-Dru-Co 

 Dandruff Eradicator for tliree 

 or four weeks, then tone up the 

 scalp with 



NA-DRU-CO 



HairTonicand Dressing^ 



This valuable preparation is absolutely free from 

 coloring matter, or from any chemical 

 that can affect the color of the hair in 

 any way. Its daily use is a pleasure 

 that is as beneficial as it is 

 refreshing. 



Na-Dru-Co Hair Tonic and Dressing 

 and Na-Dru-Co Dandruff Eradi- 

 cator are put up in 50c. and 

 |i.oo bottles. Ask your 

 Druggist for them. 



National Drug and 



Chemical Co., 



of Canadet, 



Limited 



NA-DRUCO I 

 HAIR TONIC 



AND 



DRESSING ^ 



PBItE $loo 



:nia»dpu-co.s 



203 



& 



<& 



Potato Canker 



Prof. J. E. Hswitt, O.A.C., Gnelph, Ont. 



Mr. H. T. Gussow, botanist, Dominion 

 Experimental Farm, Ottawa, has already, 

 through the press, called attention to this 

 most destructive potato disease, and the 

 great danger of its being introduced into 

 Canada in imported seed potatoes. On 

 account of the serious loss to the farmers 

 of Ontario which the introduction of potato 

 canker would cause, it is not out of placp 

 to again warn all interested in itotato grow- 

 ing to be on the watch for potato cank(>r 

 in the seed potatoes. A careful scrutiny 

 of the seed jwtatoes should enable anyone 



The Potato Canker 



to detect the presence of the canker. Badly 

 cankered tubers can be noticed at a glance, 

 as they are misshapen and completely cov- 

 ered with warty excrescences. Badly dis- 

 eased potatoes, however, are not likely to 

 be found in the seed, but tubers which are 

 only slightly affected and which at a casual 

 glance appear sound. These may be de- 

 tected by examining the eyes, which will be 

 found to be slightly protruding and com- 

 posed of clusters of little nodules. The ac- 

 companying illustration shows the disease 

 fairly well developed at one end of the 

 tuber. Potato canker is now found in Eng- 

 land, Ireland, Scotland, Scandinavia. Ger- 

 many, France, Italy, and Newfoundland. 

 On account of the shortage of the potato 

 crop in Ontario last year, large quantities 

 of potatoes are being imported, especially 

 from Great Britain. The danger lies in the 

 planting of irajKirted potatoes infected with 

 the canker. Farmers should make a .point 

 of knowing the source of the seed potatoes 

 they are using, and of making a careful in- 

 spection for any signs of canker before 

 planting. Suspected potatoes should be 

 sent to Mr. H. T. Gussow, botanist, Dom- 

 inion Experimental Farm, Ottawa, or to 

 the Botanical Department, O.A.C., Guelph, 

 for examination and report. On no ac- 

 count should any suspected potatoes be 

 planted until a report upon them has been 

 received. 



The Western Fair, London, Ont., this 

 year will be held from September 6th to 

 i4th. 



