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Hi All.. Need some of your expert advice :) I searched through my Ortho Problem Solver book, but I cant seem to figure out what happened to my beautiful dahlias (tears). Here's some pics of what they looked like a month ago. So full and healthy! Click the pic to see it larger.
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Follow-Up Postings:
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| Mine didn't do very well this year either...Powder mildew even though they are completely in the open...Most of mine look like yours...I don't know what caused this, but I think I'm going to get rid of mine and use the space for another type of flower. I hope someone can help out...knotz |
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- Posted by theras_garden 7b (GA) (My Page) on Mon, Oct 1, 07 at 13:12
| Looks like powdery mildew to me (disclaimer: I'm no expert though). I used baking soda in water to spray on my heavily mildewed squash leaves this year (next to my dahlia bed which I sprayed too, just in case) and within days I saw recovery and my dahlias never got the mildew. I used the recipe from previous forum post: 5 Tbsp. baking soda + 1 gallon water The 5 Tbsp. sounded like a lot to me (thought it might be 5 tsp. instead) but I didn't see any detrimental effect on the squash or dahlias. thera |
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- Posted by janinecollette 6 NJ (janinecollette@aol.com) on Tue, Oct 2, 07 at 12:19
| Thanks All! Knotz, I think I am going to get rid of these after I dig them up as well. Never happened before.. Don't want a repeat next season :) |
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- Posted by crdahlia z8bWA (larryteresa@msn.com) on Thu, Oct 4, 07 at 8:47
| It doesn't look like powdery mildew to me. Looks more like spider mites. In either case, it won't affect the tubers, so don't throw away (unless you're looking for a reason to get some new ones). But -- you should cut down the plants and get rid of the debris. DON'T COMPOST IT!! I never compost any dahlia debris, just in case there is some disease or bug in it. I had dahlia smut this year for the first time, and I will be very careful to clean everything off the ground when I dig. Luckily I live in the country and can burn. Teresa |
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- Posted by holmes_apprentice 6 (My Page) on Mon, Oct 8, 07 at 19:44
| That's what mine looked like too. I thought it was the heat. First timer with Dahlias here...only 2 plants. I cut them back...not even thinking they were coming back. They are now growing again. So I'm going to try to winter them. |
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