ed bP r) pee ee 
Pee Cid, es 
Pruning is always brought up first when rose care is discussed, but 
it is not nearly so important as disease control. The rose is so 
tough that no matter what your method of prwing it will perform-- 
one reason for its great popularity. 
MEIELDEW and BLACKSPOT are the commonest rose troubles. Remember 
that if your roses are kept in vigorous growing iad they will 
be teens better able to resist most rose troubles. 
MILDEW can be attakced and conquered after slight traces have ap-.. 
peared on the leaves. Use~-sulphur, (which can be procured ground 
so fine it is scarcely perceptible on the leaves) or Massey dust, 
which is } part arsenate of lead to 9 parts sulphur. There are 
also numerous colorless copper compounds which can be used in the 
form of spray. Personally I recommend sulphur or Massey dust. Pre- 
yention is better than cure, so it is wise to dust or spray about 
every ten days starting when the leaves first begin to come out. | 
HOWEVER, sulphur will burn the foliage if leaves are heavily coat~ 
ed when temperatures are 80 degrees or above, and may have to be 
washed off with the hose if damage becomes apparent. If your hot- 
days are accompanied by cool nights, and your beds are heavily 
watered, making ideal mildew conditions, you may have to rely on 
colorless copper compounds for a while. 
WHEN DUSTING hold the nozzle of the duster close to the ground so 
the dust will fly up and cover the extremely vulnerable underside 
of the Beate. 
BLACKSPOT is controlled by the same dusts or sprays as mildew. But 
unlike mildew, blackspot cannot be halted after traces have appear 
ed. That is, no fungicide ever tested can stop the spread of this 
trouble in an infected leaf. Most people do not know this, and 
wait until they see blackspot before attempting to combat it. THE 
ONLY WAY to control blackspot is to keep a protective coating on 
the leavés so the spores cannot take hold. Six hours of damp fol- 
jage is required before this can occur. If you have waited to do 
dusting or spraying until AFPrLR blackspot has appeared, you should 
pick off and burn ail affected ] aves and immediately dust or 
spray to keep other icaves frou being infected. Further blackspot 
