This drought has many of us facing powdery mildew on our roses already, so early in the year.
|Powdery mildew on rose foliage and flower bud.|
Make a milk and water solution that will choke out the mildew within a week or two.
1 part skim or low fat milk
9 parts water
Place in spray bottle and apply liberally to affected foliage.
Thoroughly spray any affected areas with the milk solution, so that the mildew has been well coated.
Repeat in 3 or 4 days. You may need to do it yet one more time after that. Your mildew problems will be a thing of the past in just two or three applications.
It will not be quite as effective on hairy foliage, as it is unable to smother out the fungal spores, but will help slow down the mildew spread long enough for you to harvest your cukes and pumpkins.
Happy organic gardening!