3,226 Garden Web Discussions | Dahlias

I don't know about oakworms. Maybe check the Pest Forum? or google for oakworm solutions/controls.
Better yet, go to the insect forum with a photo to post. Those people are sheer genius when it comes to insect ID and info.
Slug bait I know about and use regularly. Rainy weather, then heat, will mold it or break it down in several days. I just shake down more (I use the pelleted iron-based kind friendly to pets.) Nothing like a good pruning shears for a revenge on the slug...


I have three separate dahlia plants and one is blooming like crazy, the other one's got two or three blooms but the third one only has one that's blooming very very slowly. It's been a couple of weeks I think and it's just halfway open. I guess these things like to keep us in suspense. Although my plant that's blooming a lot is only producing mid-size blooms. So the longer they take, the better the get I think.



Hi Sylvia
I don't know anything about Southern California, so it might be different, but here, there wouldn't be much doubt as to what destroyed the plants so thoroughly: slugs!
They LOVE dahlias! I've given up planting dahlias into the ground right away. I raise them in pots until they are sturdy and strong.
Slugs might still climb up to the tender young leaves and buds, but they have a harder time getting there, and they can't eat the whole plant, as they will do as soon as they notice the first green stems peeking out.
So, yes, you are having the right hunch, I'd say: keep them somewhere safe until their leaves aren't so tender anymore.

Hi maybe that what knock over my dahlia that was about 10 in high. I know those guys are really crazy they ate a hole in my plastic pot i could tell by the teeth marks it was a squirrels. Thank god it was only the rim of the pot but the hole was about 2 in dim. So now we not only have bug problem we have squirrels problem bye for now Anna lisa



Hi,
I have recently read something about plants that are planted toghether they can change color and it is called a sport. I think it has something to do with roots touching. Could this be in your case?
As an example a month ago I planted in pots some purple violets and some yellow violets, about two weeks later I noticed that the yellow violets had purple streaks in them they formed a sport.
But Dahlias are hybrids so it could just be a that. I have a Dahlia Linda it blooms yellow but I noticed that one flower had a purple spot on it like someone dropped some ink on it and it ran. It was pretty cool looking. I think it happened because it is a hybrid.
I bet yours are pretty Dahlias!
Happy Gardening,
Laura

If they are in a crowded place or against a building with limited air circulation I remove the bottom foot of leaves. It makes for easier watering, fertilizing etc. anyway.
The one year I had mildew, it was on plants right next to the garage that didn't get much airflow. FWIW.


Sorry, I've never heard of a beetle harming a tuber. I wonder if it was attracted to it because it was rotting already?