RE: Insect Problem?
- To: i*@egroups.com
- Subject: RE: [iris-talk] Insect Problem?
- From: m* v*
- Date: Wed, 26 Apr 2000 08:35:28 -0700 (PDT)
HI Bill,
Another way to get rid of aphids is to get ladybugs.
They are natural predators of aphids. You can get
ladybugs in many catalogs such as Gurneys. They are
very effective. I am speaking from experience. Hope
this helps.
Michelle Verville
Mi, zone 5
--- John Reeds <jreeds@microsensors.com> wrote:
> You are right about where the aphids are 'nesting",
> inside the iris leaves
> (particularly the outer ones). Overhead watering
> tends to make this a lot
> worse. You can try to kill them with insecticidal
> soaps (or a very dilute
> solution of hand dishwashing liquids); but the best
> fix is preventative
> maintenance: use the common systemic rose
> fertilizer/insecticide products
> available in just about any garden department or
> garden store. Bayer seems
> to have recently reclaimed exclusive rights to make
> the product. Just use
> it as soon as the warm spring weather starts or you
> see your first aphid.
>
> John Reeds
> jreeds@microsensors.com
>
> From:
> wrlippert@cinci.rr.com[SMTP:wrlippert@cinci.rr.com]
> Reply To: iris-talk@egroups.com
> Sent: Tuesday, April 25, 2000 8:27 PM
> To: iris-talk@egroups.com
> Subject: [iris-talk] Insect Problem?
>
> Hi,
>
> I am new to this group and don't have much
> experience growing iris.
>
> I have a cluster of bearded iris that is about 4
> years old and about
> 3 feet in diameter. On Sunday, I noticed that the
> plants had sent up
> flower stalks, but on close examination, I found
> that four of them
> were broken. The breaks were clean and located
> about 12 inched up
> the stalk. Earlier in the day, I noticed a heavy
> infestation of
> aphids on my roses. When I peeled back the layers
> of leaves, I found
> a heavy infestation of aphids on the broken iris
> flower stalks. The
> aphids ranged from large adults to tiny eggs.
>
> I don't know if the broken stalks are a result of
> high winds we
> experienced last Thursday or if the aphids are
> responsible for the
> problem. I know that there is an iris borer, but I
> haven't seen any
> evidence of a worm like creature. What problems can
> the aphids cause
> and what should I do to get rid of them? On plants
> like roses, I
> often just control them by giving them a good blast
> of water, but in
> the cases of the iris, the aphids seem to be deep
> inside the layers
> of the leaves that have not unfolded.
>
> Any help would be appreciated. I was looking
> forward to a big
> display flowers this year. They did not bloom 1998,
> and I don't know
> why, but last year they were beautiful.
>
> Bill
> Zone 6a, Cincinnati, Ohio
>
>
>
>
>
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