Crapemyrtle – White Substance On Leaves
Q: I have a crape myrtle with a white substance on the leaves and no blooms. What do I have? How do I treat it?
A: I’m almost certain you have powdery mildew. Cool nights and warm, humid days provide the perfect environment for this disease to develop. Heavy winter pruning causes lush growth with little air circulation around the leaves. Myclobutanil (Immunox) and propiconazole (Infuse) will control the disease on new leaves.
-
Advertisement
-
Follow Walter
-
Advertisement
-
-
April calendar
Time to start moving your houseplants outdoors gradually. April winds will keep your wind chimes tinkling....
Get The Checklist
-
-
-
name that plant
Post your puzzlers and help others with theirs.
Start Here
-
-
Trending Posts
-
1
Bermuda – General Notes
-
2
Good Trees to Grow in Georgia
-
3
Retention Pond – Plants for
-
4
Poison Ivy – Pictures and Mimics
-
5
A Banana Enthusiast’s Notes on Banana Feeding
-
1
Clematis – Best Ones for Georgia
-
2
A Banana Enthusiast’s Notes on Banana Feeding
-
3
Creeping Jenny- Can I Kill The Oxalis In It?
-
4
DIGGING AND STORING TENDER BULBS
-
5
Assessing Tree Health – The Doctor is IN!
-
-
Walter’s Bookshelf
Browse and purchase gardening books by Walter Reeves, plus select titles by other authors.
View books -
Popular topics
Soil Spring Summer Seed Winter Fall Flowers Weed Fertilizer Disease Shade Temperature Pots Oak Pine Pruning Mulch Watering Container Maple Compost Birds Herbicide Tomatoes Azalea Moisture Poison Pears Hydrangea Glyphosate Caterpillar Pests Cherry Roundup Irrigation Pre-Emergent Pesticide Stone Dogwood Peach Spider Pine Straw Greenhouse Magnolia Squash Squirrels Beans Lemon Travel Japanese Maple