Messages posted to thread:

From:Date:Zone:
Vic03-Mar-03 11:23 AM EST 2b   
Budding Poet04-Mar-03 12:13 AM EST 5a   
marylou04-Mar-03 11:22 AM EST 3a   
Susan04-Mar-03 12:37 PM EST 6a   
Vic05-Mar-03 09:14 AM EST 2b   
Susan05-Mar-03 02:51 PM EST 6a   
AJ11-Mar-03 01:50 PM EST 5a   
Susan11-Mar-03 03:31 PM EST 6a   


Subject: Help with Aquilegia (Columbine)
From: Vic
Zone: 2b
Date: 03-Mar-03 11:23 AM EST

I have grown columbines for many years but all inevitibly succumb to a pest that eats the base of the plant in the root and crown area. I am now encouraging our children to choose seed to start indoors. They immediately remembered the beautiful columbines and have now planted those seeds. Is there any way to defeat the pest problem that always surfaces with these plants?


Subject: RE: Help with Aquilegia (Columbine)
From: Budding Poet (CBRIAN@attcanada.ca)
Zone: 5a
Date: 04-Mar-03 12:13 AM EST

Vic

Could your Aquilegia problem be a crown or root rot and not a pest? You are near the northern limit of hardiness for most Aquilegia. Some charming species(flavescens) and hybrids(Mckana Giants) will not be reliably hardy for you up there in Zn2b


Subject: RE: Help with Aquilegia (Columbine)
From: marylou
Zone: 3a
Date: 04-Mar-03 11:22 AM EST

I have successfully treated the tiny green bugs that decimate our columbines. I boil rhubarb leaves with garlic cloves, and pepper and strain really well. Then I add some olive oil and spray the plant. We have not had a problem since I started this. Don't overspray - I did that the first year and choked the poor plants.


Subject: RE: Help with Aquilegia (Columbine)
From: Susan
Zone: 6a
Date: 04-Mar-03 12:37 PM EST

Please don't kill the green 'bugs' with black heads that nibble on your columbine! They're the caterpiller stage of the Comumbine Skipper butterflies! They rarely kill the columbines, although they can decimate the foliage - it will usually recover. Everyone likes butterflies but you have to remember that you don't get butterflies unless the caterpillers survive so make sure you know what you're killing before you kill it!


Subject: RE: Help with Aquilegia (Columbine)
From: Vic
Zone: 2b
Date: 05-Mar-03 09:14 AM EST

The problem I notice is that during the growing season, some of the plants will begin to stop growing and then turn brown and dry. When gently pulled, the plants sometimes come out of the ground minus the root or with the upper part where the root joins the crown. The upper root area has several voids or cavities and sometimes contain a worm or grub. I assume that this pest has eaten the root area and weakened the plant. During the early part of the summer season I noticed that certain leaves will suddenly droop. I understand that this is caused by a pest that enters the stem of the plant.


Subject: RE: Help with Aquilegia (Columbine)
From: Susan
Zone: 6a
Date: 05-Mar-03 02:51 PM EST

Vic - take a look at:

http://www.caes.state.ct.us/PlantPestHandbookFiles/pphC/pphcolu.htm

Maybe you'll find your culprit there...

To clarify re the butterfly larvae - they have a dark line down their backs as well. If they don't have the line, they're sawfly larvae and feel free to kill those ones!


Subject: RE: Help with Aquilegia (Columbine)
From: AJ
Zone: 5a
Date: 11-Mar-03 01:50 PM EST

Personally I feel the little green monsters do destroy Columbine completely. It's a matter of butterflies OR Columbines - I don't think they can happily co-exist. I choose the Columbines!

But, as a side point: this is year 3 for my beautiful blue star columbines. I can't recall how many years they are expected to last before I need to replace them. Does anyone know?


Subject: RE: Help with Aquilegia (Columbine)
From: Susan
Zone: 6a
Date: 11-Mar-03 03:31 PM EST

If the green bugs are destroying the plants completely, they're likely sawfly larvae. Do you notice evidence of leaf mining first?

Columbines should last about 5 years. If the variety will come true from seed, scatter seed each year as it ripens and you'll always have new plants to replace old ones. If it doesn't come true from seed you're either stuck with buying new plants or the color of your columbine patch will gradually change as the new seedlings take over.


In order to post the forum, you must register to the site.
To register, click here.

If you have already registered, you must log in.
  • New Eden
  • Kids Garden
  • Plant a Row Grow a Row