THE CANADIAN HORTICULTUKI8T. 



91 



This knot should be removed immedi- 

 ately on being found. If it should 

 make its appearance on a part of the 

 tree you would not like to take off, cut 

 the knot closely, and cover the wound 

 with wax, the tree will sustain no seri- 

 ous injury. There is no need of burn- 

 ing the affected part when removed, if 

 the insect has not arrived at its chry- 

 salis stage ; if it has, be sure and des- 

 troy the knot. When you find the 

 knot turning black on the ti^ee, cut it 

 open, and you will find these grubs in 

 full blast. If we would conquer this 

 pest, every man must set to its des- 

 truction and not leave a single insect, 

 as one insect on wings can produce 

 hundreds of knots. 



Yours respectfully, 



W. C. Webster. 

 Stouey Creek, Out. 



Will Mr. Webster please send a 

 specimen of the insect that makes the 

 puncture and lays the egg, which, in 

 his opinion, causes the Black Knot, to 

 the Editor, or to Mr. W. Saunders, 

 London, as soon as they appear next 

 season. By so doing he will contribute 

 largely to the settlement of a much 

 vexed question. 



CERTAIN ROSES, AS I FIND THEM. 

 Mr. Editor, — I purpose, in response 

 to your invitation, to send you a series 

 of short papers or notes on flowers and 

 their culture, most suitable varieties to 

 grow, etc. And I wish to state to the 

 i-eaders- of the Kwticulturist once and 

 for all, that any opinions I may ad- 

 vance will be based on my own practi- 

 cal experience alone, and although my 

 opinions may not always coincide with 

 those of others as regards certain plants 

 or varieties, I wish at the outset to im- 

 press the idea that I am only stating 



things as I have found them in my 

 purely amateur experience. 



I will devote this paper, and perhaps 

 the following one, to roses best suited 

 to the amateur, or those who grow roses 

 for pleasure alone. 



The greatest number of roses suit- 

 able for this that should be the greatest 

 class of rose growers, is to be found 

 among the hybrid perpetuals, and 

 among these I would perhaps give the 

 very first place to that grand red rose, 



ALFRED COLOMB. 



It seems to have more good points 

 than any other rose of its class ; 

 it is moderately hardy, very large, 

 of perfect form and color, is very fra- 

 grant, and a good and fairly constant 

 bloomer. Marie Bauman, another 

 beautiful red rose, very nearly resem- 

 bles Alfred Colomb in form, color, and 

 fragrance ; but it is not so desirable 

 because it is not as good a grower, and 

 appears to be quite tender, mine hav- 

 ing died out altogether. Marie Rady, 

 a very fine red rose, also somewhat re- 

 sembles Alfred Colomb, but the color 

 is not quite as good, nor do I think 

 that it is as constant a bloomer. Tlieio 

 is no other among the red roses so con- 

 stant in blooming perhaps as 



GENERAL WASHINGTON, 



and it is worthy of a place on this 

 account, although it has many gi-ave 

 defects, the worst one being that 

 so many of the flowers are misshapen 

 or mutilated. The flowers being so 

 very double they are often torn to 

 pieces in opening ; it is void of scent ; 

 the shape is rather too flat even when 

 perfect, and the color is somewhat vari- 

 able, sometimes (in unfavorable condi- 

 tions of weather) being a deep, dull 

 pink, while under more favorable con- 

 ditions it is a most beautiful bright 

 red. It is also a dwarf grower ; but 

 in spite of its many defects it is worth 

 growing on account of its constant 



