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Sat, May 15, 10 at 15:09
| started dahlias in greenhouse and they are covered with aphids. spraying with soapy water but they keep coming back. should i discard ones with worst problem? avoid planting them in my garden for fear of spreading to other plants? help! |
Follow-Up Postings:
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| I've got the same problem on 3 potted dahlias but have knocked them off using Safer Soap solution on two of them. I kept mine isolated from other plants. The third plant is still infested, so I'm going to have to hit that with a stronger stream of hose water. The good news is they are usually easy to get rid of and have never killed a plant here, but I've only had them on full grown stems before. Usually a brisk squirt of water will get them off. Hope you get your bugs under control and your dahlias are unharmed. |
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| thanks poochella...think i have too many dahlias...too congested with poor air circulation. the growth is dense so i don't think i'm knocking them all off either. |
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| I had to take the hose with fingers over end to make a sharp squirt of water to the one stubborn plant with aphids remaining today. They are small, look like a new hatch, but they are hopefully sprayed to smithereens now. I supported the stems with my free hand and just 'blasted' away from all angles, including nearly upside down. I wonder if the tightly knit new leaves provide little hiding places for them. |
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| i'll try that this weekend. i bought a bunch of ladybugs two days ago and released them in the greenhouse....i was so excited, thought they'd go through there eating aphids like pacmans...but i don't see a difference. and i watch aphids walking on a plant pot...a ladybug literally bumps into it....backs off as if to say EXCUSE ME and walks on. now i'm wondering if ladybugs really do eat aphids??? |
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