How do I avoid powdery mildew?

gwtamaraJanuary 1, 2013

Warm days and cold nights are ideal for causing mildew on roses. Dryness at the roots and poor feeding can also cause mildew. It forms a pale grayish coating on the upper leaf surface and also on the buds. The infected leaves crumple and become distorted. One of the best ways to keep mildew under control is to keep good air circulation around the plants. Pruning to open up the center helps rose bushes Climbers on a closed wall may also not be getting enough air through them and should be pruned more open. Spraying with a fungicide at the first signs keeps mildew under control.

More Discussions
Why did some of my rose canes die back?
Die-back on roses is not a specific disease. It can...
gwtamara
What is a blind shoot and what causes it?
Instead of a flower bud at the top of a mature rose...
gwtamara
What is that mossy pincushion on my rose leaves?
These orange, moss-covered looking growths appear on...
gwtamara
What is causing the white foam on my rose canes?
There is a little greeny-yellow bug that hides inside...
gwtamara
How do you dry roses for pot pourri?
Roses can be dried whole by simply hanging them up...
gwtamara
Sponsored Products
DENY Designs Arcturus Chaos 3 Outdoor Throw Pillow - 15436-OTHRP18
$49.00 | Hayneedle
Eastwood Leather Loveseat - Brighton Black Black
Joybird Furniture
Bellows 'Tangent Point I' Framed Art Print
Overstock.com
Men's 40-pc. Executive Hanger Collection
$339.00 | FRONTGATE
Jaded Pebbles Rug 5' x 8'
$799.00 | Horchow
New Geometric Runner Super Kazak Blue Hand Knotted Wool 3'x10' Floral Rug H5815
BH Sun Inc
© 2015 Houzz Inc. Houzz® The new way to design your home™