From: mburack at mindspring.com> on 2002.05.17 at 15:23:26(8824)
I constantly deal with scale and aphids on everything as we have a nonstop ant problem in Florida... and if you have a lot of ants here.. you have a lot of scale and such.
What you experienced with the plant not infecting others is common... I beleive (from much experience) that many of these things will stay very "local" on a single plant until they are forced to venture elsewhere.
For example I have a gigantic Acalphia hispida plant growing dead center in my landscaping. It is the most pest prone plant I have ever seen next to some gingers.... The plant can be covered from top to bottom with scale, aphids, mealybugs(God forbid!) and yet the surrounding plants are clean.
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On Thu, 16 May 2002 22:47:33 -0500 (CDT) Adam Black wrote:
A day after discussing with my wife how we have been lucky to have never
had any serious problems with pests in our ever-growing collection of
plants, I found leaf scale all over one of my Anthurium clairnervium.
These things must multiply exponentially in a short period of time, as I
figured I would have noticed them before it became as bad as it is
currently.They are all over the plant's leaves and petioles. I consider
myself lucky in that the affected plant is on my desk at work, 18 miles
away from my home and greenhouse containing all my more treasued Aroids.
Until now, I have never needed to treat plants with insecticide, and I
was curious what other list members would recommend for sucessful
treatment of scale on an Anthurium.
Aside from what insecticides work best, I would be curious to know if
different species of leaf scale are host specific to the genera of
plants they feed on.. I ask because up until now I had a small
Philodendron williamsii sitting right next to the affected Anthurium,
with leaves touching. I searched the entire plant over, and could not
find one scale on the Philodendron. Nothing on any of my other aroids
and non-aroids in the office either.
Thanks for any replies on solutions to this probem. I am thankful that
the affected plant is isolated from my main collection, and I can't
imagine what it would be like to have a problem like this spread in my
greenhouse. I am definately going to get more serious with putting new
aquisitions in quarantine prior to mixing them with my other valuables.
Adam Black
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