THE CULTURE OF ROSES UNDER GLASS. 
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The aphis is, perhaps, more troublesome than mildew, and 
although some have recommended the safe and effectual remedy 
of catch 'em and kill 'em, I imagine that it would be an irksome 
task in a Rose-house. This pest may be kept in check by the 
free use of the pump syringe, but it is necessary sometimes, 
during a spell of cold weather which we frequently experience 
during March and April, when the syringe may not be used so 
freely, to resort to fumigating as a mode of exterminating them. 
(Oh ! how I wish they might be exterminated.) For this purpose 
I have found McDougall's fumigating sheets very effectual, 
harmless, and requiring little or no attention beyond lighting ; 
but it is desirable to procure them as they are wanted, as I 
find they do not improve by keeping. The old system of 
fumigating with tobacco paper or rag answers very well for a 
nurseryman, but it is objectionable and troublesome for an amateur, 
and be he ever such a smoker he will not enjoy the fumes from 
tobacco rag, nor watch them with so much interest, as those pro- 
ceeding from his own pipe. Whatever material be used for 
fumigating, it should always be done after sunset, the house and 
plants being dried for the purpose. Therefore the plants should 
not be syringed after nine o'clock on the day it is intended to 
fumigate them. 
A dull, still night should be selected for the purpose, if 
possible. The following morning a free use of the pump syringe will 
effectually remove the few aphis which may have escaped death ; 
for however carefully you may fumigate or syringe, he is indeed 
a bold man who will assert that he has killed them all. There 
are many effectual and safe insecticides which may be used to 
destroy aphis by spraying or syringing ; but where these are used 
a deposit is generally found on the foliage, which is not, in my 
opinion, conducive to perfect health or appearance. It has been 
asserted by authorities on the subject of growing Roses under 
glass that Teas and Hybrid Perpetuals cannot be successfully 
grown together in the same house. I am happy to say I have 
not found this the case. Where it so, I should at once dismiss 
all the H.P.'s and grow only Teas, but with me they are happy 
tenants under the same roof. That Teas like more sun than 
H.P.'s I freely admit, and by putting the latter round the outer 
borders, as before described, the H.P.'s may be slightly shaded by 
thin tiffany outside, sufficiently wide only to shade the border of 
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