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Agapanthus Problem

Posted by Wombat (My Page) on
Fri, May 14, 04 at 19:45

I have a single clump of white agapanthus which appeared to suddenly collapse in a pathetic heap. I initially thought it was the effect of the drought - yes, folks, it's still with us.

We have been on severe water restrictions (currently NO hoses even connected to a tap) and for the last couple of years, when we have been allowed to water, it has only been hand held and for one hour per day. Consequently, I haven't watered any of my agapanthus.

I bucketed the entire output of a load of washing onto them but they didn't spark up. Eventually got into them and removed all the dead leaves and cut back the drooping leaves almost back to the neck of the bulbs and discovered that something is living there.

There's a lot of grey powdery stuff between the leaves, very much like mildew but can't possibly be, and very little insects which look something like rows of little slaters. I've never had slaters actually breeding in my plants before.

I'm not sure what I've got but I suppose the stressing of the plants because of lack of water has made them more suspectible to insect attack. I have several clumps of blue aggies and they are fit and healthy.

I've sprayed the white aggies with pyrethrum twice and also tipped a few more buckets of nice soapy water over them. But I wonder if it is actually getting into the problem. It's right down where the leaves emerge from the bulb.

Can anyone identify my wildlife and suggest treatment.


Follow-Up Postings:

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RE: Agapanthus Problem

  • Posted by Mrs_B SA Aust (My Page) on
    Sun, May 16, 04 at 19:37

same thing happened to me ages ago. Come to think of it, it had been a very dry spell. The plants ayellowed went slimy and were staring to die. I just thought they were overgrown and needed seperating :( It turned out to be slater larvae.

I lifted the entire plant, sectioned it up into healthy pieces and replanted them in another area. The soil I thoroughly drenched with an insecticide product. Would have left it open for the birds but there was just to many and to deep for control. I didn't want the larvae moving out into near by plants.

I then sprinkled a systemic insecticide on the big clumps of aggies near by, to ensure control of interlopers. The sectioned plants have taken some time to recover but are now showing better growth with the application of blood and bone. Although it has taken almost a year for them to recover.

cheers Mrs B


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RE: Agapanthus Problem

Bummer - I might just spray the plants with a systemic insectide which I usually only use when all else fails. My garden is so dry I'd need a crowbar to dig a hole to plant something in! And the frost doesn't do the aggies much good either, although normally the damaged leaves protect the new growth at the neck of the bulb.

I'd always thought that slaters were nice little creatures who quietly turned dead material into humus - dead material on the ground, that is.


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RE: Agapanthus Problem

  • Posted by meggs WA Aust (My Page) on
    Thu, Jun 10, 04 at 4:47

Slaters DO NOT EAT HEALTHY PLANTS. They eat only those that are on their way out. It might have been the lack of water stress or something else. I do not think that spraying with systemic insecticide helps, I think replanting them into healthy soil might save them.

For the last 15 years I have not bought any poisons, never spray my plants. I think that if you start spraying it creates more problems in the long run.


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RE: Agapanthus Problem

Don't worry Megs. I did use a pyrethrum spray - after I had squashed as many as I could and removed the powdery stuff by hand. And I have bucketed heaps of washing water onto the area. But I didn't worry about the systemic insecticide.

I started to get a bit of decent green growth - and then we had a couple of nights of -5/6 degrees with very heavy frost.

No chance of moving into healthy soil. I don't have any!! I usually have lots of little hoppy, crawly things living under the mulch but they seem to have disappeared. Lack of moisture I suppose.

I'm pretty much a newby to this prolonged drought business. Have never experienced problems with agapanthus before, or with slaters. I also used to have heaps of millipedes but they are few and far between as well. It's a good thing the skink population has decreased - they wouldn't get enough to live on.

It's all terribly demoralising. I wonder sometimes if it is ever going to rain again in my lifetime.


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RE: Agapanthus Problem

My poor aggies are suffering the same fate. They collapsed last year and I couldnt see any bugs. By spring the roots were so shrivelled that I could kick the clumps apart.

I've just noticed it happening again, and there's the white stuff etc. It looks like mealy bug to me, happily chomping or sucking away inside the clumps.
I cant see slaters, but maybe they'll be in for the pickings later.

Does anyone have a way of eradicating them bugs in inaccessible places?


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RE: Agapanthus Problem

My bugs were right down in to base of the leaves (where the leaves are flat against each other). Not inaccessible - just plain tedious having to part each leaf from its neighbour to get to the lodgers. I probably didn't get every one of the little critters but I hope that, between the squashing and the pyrethrum, I wiped out enough to give the aggies a fighting chance.

I also cut off all the dead and dying leaves so the growing tips (the bug nursery) were more exposed. Will have to wait until warmer weather to see how successful the treatment was. Because of our heavy frosts, all aggies look pretty sad (deadish) in winter.


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RE: Agapanthus Problem

I hadnt checked down amongst the leaves, but yes there's the white fluff. Definitely mealy bugs. The badly afflicted agapanthus are in old clumps that havent been cleaned up in years, and there are lots of aerial roots and hidey holes down in the clump that are mealy bugged. I guess a bit of plant hygiene will help, but dang I like agapanthus for being low maintenance.
At least they'll be easy to divide.
The plants I split up last year look healthy.


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RE: Agapanthus Problem

I've had aggies for years - huge, old clumps of them. And the only reason I've ever attacked them was to prise off a few bulbs to start another clump. The only problem which I have previously experienced is that they provide a perfect hiding place for snails. But I haven't seen any of those for the last couple of years. Guess they've died of thirst as well.

If it ever rains agains I'm planning on dancing naked in the garden (there's a nursing home across the road with a secure ward - I'll have to be careful).


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RE: Agapanthus Problem

Make sure they open the curtains in the unsecure wards. It'll liven up their day.

I hadn't realized things were so dry in the east (head's been under a rock, obviously) It must be a shock for the gardens if you're used to regular rain. The aggies'll pull through any drought, but how're the other plants going?


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RE: Agapanthus Problem

Most trees and shrubs surviving. I've lost a few, including my beloved virburnum thom-something (has horizontal branches and the the white flowers look like snow) and a gorgeous deep purple lilac (old and huge) - a couple of others not so deeply mourned. I've lost a heap of perennials so the ground is somewhat bare. Some of these losses were my own fault. With so little water, I used it on plants which I thought needed it more - so I lost a few lavenders (old fashioned ones) and other plants which are considered extremely drought resistant.

The self seeding annuals like love-in-the mist and johnny jump-ups have decided not to return annually. On the bright side, the pink evening primrose, which I planted in a rash moment, has disappeared.

Everything is suffering - have had a small crop of figs for past two years but the figs are very small. Same with persimmons. And some plants definitely didn't like the washing water.

Town water is down to about 20% of capacity so not sure what is in store for coming summer. We live in a strange place where the storm clouds pass over us and pour somewhere else. Sometimes we get a little shower, enough to muddy the dust on the leaves, but not long enough to sink into the ground or heavy enough to run into the dams.

But I have developed an interest in succulents. So all is not lost.


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RE: Agapanthus Problem

Wombat ,I have an agapanthus problem of a different kind.
I rescued a heap from a friends place where they were languishing in a plastic bag no less.I promised to nurse them back to health,which I did .Now she wants them back.
I won't wish any harm on them, but I think she will have to promise me that she will look after them or I will be around with a spade.!


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RE: Agapanthus Problem

Can't you tell her they all died? Or, at least, some are still a bit sick.

I wish I could get away with a spade. I dug up a few of mine last year (uni student son had a spurt of gardening fever) and broke the maddock handle!! Total waste really. By the time he got back to his rented house, the spurt had fizzled out so he stuck them all in one hole (original plan was right across a kikuyu infested front fence border) and then he decided to move house!

Shouldn't complain - at least one (out of three) knows how to dig a hole and stick a plant in. And he's only in his teens so there's still hope. Mind you, if beer cans would sprout, he'd have the whole yard dug over.


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RE: Agapanthus Problem

yeah, my daughter busted the handle on my dad's post hold shovel on a patch of Aggies. Loss of an item of great sentimental value.
The shovel, not the Aggies!!!
Is your wash water soapy or detergent laden?
When plants are struggling you don't want to give them a big feed of phosphates, or anything else, and force them into a spurt of soft sappy growth that will attrack every hungry bug in the neighbourhood. It would be better to give them the occasional drink, just enough to keep them from kicking the bucket, and pray for rain. Tough old survivors like aggies will adapt and hopefully your drought won't last long enough to see them off!!!!
Hoping for rain for eveyone that needs it - the drought here is in its eigth year now, so I'm keeping more and more plants in pots. Bizarre, but we still have unrestricted use of town water as we draw it from a spring on Mount Cole. But if that dries up, we have not capacity to store rainwater, so heaven knows how long until the spring restores itself.
On that gloomy note, Cheers, Penny.


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