RE: aphids and mandevilla
- To:
- Subject: RE: aphids and mandevilla
- From: M* D*
- Date: Wed, 20 Dec 2000 15:36:43 -0800
- Importance: Normal
Claire,
The only times I have had white flies is on Fuchsias. My GH is so packed
in winter that if I let them get started, it will be a disaster for me. I
have been able to nip an infestation in the bud with just the sticky bars,
BUT - I removed the offending Fuchsias to the outside and it was sink or
swim for them. I simply couldn't risk letting them stay in the GH. I would
shake the basket several times a day so the whiteflies would fly up, swarm a
little and stick. For insurance the offending plants were also sprayed with
insecticidal soap. Otherwise I use the sticky bars for fungus gnats and to
monitor for aphids. They will always catch a few aphids and that causes me
to hunt for the offenders and spray them with soap also. I don't know if I
have just been lucky, but it seems to work.
The worst problem in the GH for me off and on has been mealy bugs. Oh my,
that is a long sad story. I have had to toss so many of my tropical
Begonias, Streptocarpus and Hoyas because of them until I finally found a
product that gives great control. I suppose mealies can get on perennials,
but they seem to prefer the tropicals in my GH. I have never had them on
anything outside, but I'll bet it is possible in warmer climates.
I always get spider mites on my overwintering Brugmansias, but after they
are put outside for the summer, the mites go somewhere else until the next
winter. I don't have a clue how to control them other than misting and
spraying as often as possible.
Marilyn Dube'
Natural Designs Nursery
Portland, Oregon
-----Original Message-----
From: owner-perennials@mallorn.com [owner-perennials@mallorn.com] On
Behalf Of ECPep@aol.com
Sent: Monday, December 18, 2000 8:36 PM
To: perennials@mallorn.com
Subject: Re: aphids and mandevilla
In a message dated 12/18/00 9:38:45 PM Eastern Standard Time,
maridube@teleport.com writes:
<< Barb,
Small & white sounds like it could be whitefly. When you shake the vine
do
the insects fly up? If so, try some yellow sticky traps. >>
Marilyn, do the sticky traps control the white fly population on a continual
basis? I have had little trouble white flies usually buying a plant with
the
eggs or larva in place and unseen. It seems that killing off the adults is
not too hard but those measures do not deal with the progeny coming on.
It is too late now but the mandevilla in question should have been sprayed
before bringing indoors. This is a practice usually made frantic by some
frost prediction causing plants to come in before you have preparations
made.
I have trouble with spider mites every winter despite having a special
glassed room winter garden that has at times, too much humidity. In fact,
were it possible, I would pass a law against spider mites. All impatiens
and
ivies end up the winter with mites. They are then cut down to the soil and
regrown or discarded. The best mite cures are not usuable indoors so one is
working with a small arsenal and large amount of angst.
BTW, I keep over fuchsias and the dwarf or smaller geraniums. What else is
successful and look good all winter.
Claire Peplowski
NYS z4
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@mallorn.com with the
message text UNSUBSCRIBE PERENNIALS
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@mallorn.com with the
message text UNSUBSCRIBE PERENNIALS
