Gray mold has compromised these Riesling grapes.
Prevent Gray Mold in Your Garden!
How to Identify Gray Mold Damage
- The symptoms of gray mold depend on the type of plant and environmental conditions, but generally, spots that appear water-soaked will form on the leaves. These might appear white at first.
- These spots will then change color from gray to brown, eventually covering most of the leaf and causing it to wilt. The brown coloration is what often causes people to confuse gray mold with brown mold.
- Under really humid conditions, grayish webbing may appear on the leaves. This webbing contains structures that contain fuzzy spores. Spores become active and are released with no activity at all.
- Petals, stems, and buds can also be infected.
- Eventually, all of the infected parts of the plant will be covered by a fuzzy gray growth, causing you to seemingly have gray flowers.
Photo Credit: Francesca Peduto Hand, The Ohio State University.
Catherine Boeckmann
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It appears that the problem might be powdery mildew. To find out how to prevent and control this fungal disease, go to our .
I have a petunia in a hanging pot and I noticed it has black spots on leaves and around small blooms. I don't know if they are bugs of some kind also found a small green worm or maggot on another bloom. Any suggestions on what to put on my plant? Some of my plant leaf ends are a pale light green is this not enough water?
Black specs might be "frass"...caterpillar poop. You may have a worm eating your plants. Blast the leaves with insecticide spray.
I have a hydrangea plant has brown leaves and are falling off.We think it may have over watered.Is there any way I can save plant?
Are the hydrangea leaves turning brown around the edges? Usually, this is a moisture issue. Sometimes, the plant can be root-bound, too.
Gently dig the plants early in the morning to check for both conditions. If needed, lightly loosen the roots with your hand. You can also soak the root ball in water until it's moistened through. Make sure you maintain uniform moisture for your hydrangeas.
Location can also be an issue. If they're getting sun burnt, they'd do better with light shade.
I bought a spider plant all of the leaves are yellow and the tips are black and appear to be bent like an edge.
Could you please help?
It sounds like your plant may be getting too much sun. Move it to a cooler spot in the house; be sure it is not close to heat vents or on top of the television.
I have peonies that seem to have this gray mold on the leaves. It hasn't turned brown or wilted the leaves, but I've noticed that my hydrangea that is next to it doesn't look too good. I have 3 others in my gardens and they all look great still. Could whatever is on the peonies have affected my hydrangea too? Its not as green and lush as it should be and the edges of the leaves look like their browning. I live in zone 7 and my peonies are well passed bloomed. I usually wait til fall to cut the foliage down. Should I have cut that down sooner? And do you think I should move the peony because it is rather close to the hydrangea? When I put the hydrangea there it wasn't as big as it is now.
It's probably powdery mildew from humid conditions. It isn't pretty but it won't hurt the peony this late in the year. Cut it back in the fall and dispose of the leaves. Make sure your peony has good air circulation next year. It may be a good idea to move it away from the hydrangea. Go to our peony page for more information. www.almanac.com/plant/peonies
I have a question about my garden and I think it is probably related to this article about gray mold. I recently moved to a northern California coastal town. Long growing season, very temperate climate. I'm living in my RV and am surrounded by asphalt, so I container garden, allot. I'm trying to keep the pots wet enough so that the plants don't wilt from the heat, but its humid here.
My sage plants turn yellow and get brown spots. My squash gets spots, turn brown and die. The gray webbing takes over. yuck,but the plant keeps trying. I have tomatoes near the squash, one looks like it rotted from too much water, but I don't water until the top few inches are dry. That's every other day here.
Any suggestions? I thought the plants were getting sunburned, maybe that's the damaged entry point for the gray mold. Some one suggested shade cloth. But doesn't that seem weird with tomatoes?
