ROSE TROUBLES 
Pruning is always brought up first but really is not 
nearly as important as disease control, as the rose is so 
tough that no matter what your method of pruning the 
rose will perform. 
FIRST: A rose plant can scarcely get too much water 
in the summer. 
SECOND: Always protect foliage with a fungicide 
whether it is Triogen, sulphur or Bordo, the main thing to 
remember is thoroughness. 
THIRD: Whenever you can see any bugs use your 
favorite contact spray whether it be Blackleaf 40, an oil 
emulsion, a pyrethrum compound, Derris root (Rotenone), 
or plain soap and water. The main thing is thoroughness. 
HIT THE BUG. 
A good rule in using soap as a spreader is never more 
than one cubic inch to a gallon of water. 
NEXT: Feed your plants throughout the summer 
about every three weeks. 
I find that by protecting all wounds with emulsified 
asphalt your rose plants will be much longer lived. 
MILDEW AND BLACKSPOT 
Are the most prevalent diseases of roses and the 
spores of both are wind borne. If your roses are kept in 
vigorous growing condition they will be less liable to 
attack than sickly plants. 
If blackspot gets started pick off all affected leaves 
carefully and burn them. If any leaves have fallen pick 
them up and destroy them. One infected leaf can start 
infection for a whole garden. 
Both mildew and blackspot can be controlled by 
dusting with Massey dust (9 parts sulphur, 1 part arsenate 
of lead). Dust about every 7 to 10 days, starting when the 
first leaves are fully formed. Dust early in the morning 
when dew is on. Hold the nozzle of the duster close to the 
ground so the dust will fly up and cover the vulnerable 
under part of the foliage. 
Roses are sulphur toxic at temperatures above 80°. 
Therefore if you use sulphur or sulphur compounds at 
high temperatures your roses may be defoliated. 
SUMMER CARE OF ROSES 
After the big harvest of roses in June some gardeners 
give their roses a rest by pinching off all the buds that 
form during July and August and thus preserve the 
strength of the plants for producing finer blooms during 
the cooler weather of September and October. The fall 
flowers will then mature better and last longer. 
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