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04-16-2018, 02:49 PM
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Jr. Member
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Join Date: Dec 2009
Zone: 6a
Location: Niagara Falls
Age: 81
Posts: 21
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Phalaenopsis 'Mould"
My phalaenopsis has developed small white accretions on the leaves. This can be along the length of the leaves and also where the leaves leave the stem. Tight webs of random shape. What are they and more importantly the treatment and avoidance strategies please?
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04-16-2018, 04:41 PM
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Senior Member
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Join Date: Aug 2016
Zone: 6a
Location: Northern Indiana
Posts: 5,540
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Pictures would be helpful. We need to see if it's bugs or disease...
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04-16-2018, 04:57 PM
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Senior Member
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Join Date: Jul 2012
Zone: 8a
Location: Athens, Georgia, USA
Posts: 3,208
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It sounds like mealybugs, but photos will help us be sure.
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04-17-2018, 12:25 AM
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Senior Member
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Join Date: Jun 2015
Zone: 9b
Location: Phoenix AZ - Lower Sonoran Desert
Posts: 17,932
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Could be scale, too. Use the Search function above to search for scale Phalaenopsis.
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Post Thanks / Like - 1 Likes
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04-17-2018, 06:07 PM
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Jr. Member
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Join Date: Dec 2009
Zone: 6a
Location: Niagara Falls
Age: 81
Posts: 21
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Here is an image to help in an anlysis
Last edited by Paerata; 04-17-2018 at 06:09 PM..
Reason: No picture
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04-17-2018, 06:14 PM
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Senior Member
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Join Date: Aug 2016
Zone: 6a
Location: Northern Indiana
Posts: 5,540
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Those are mealybugs. You can use the search box to research treatment. I would use Bayer 3 in 1 systemic insecticide with impracloprid. Our experts will have other options for you too. I hope you have this isolated from your other plants.
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Post Thanks / Like - 1 Likes
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04-17-2018, 06:24 PM
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Jr. Member
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Join Date: Dec 2009
Zone: 6a
Location: Niagara Falls
Age: 81
Posts: 21
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Thank you for your prompt and helpful reply
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04-17-2018, 06:31 PM
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Senior Member
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Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 5,391
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Imidacloprid or thiacloprid solved my problem fast.
__________________
Meteo data at my city here.
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04-17-2018, 06:31 PM
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Senior Member
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Join Date: Sep 2006
Zone: 6a
Location: New England
Posts: 1,389
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You have both scale and mealy bugs.
With such a heavy infestation I'd be treating and checking all my plants especially the ones right around this one. Where there is one, there's hundreds.
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04-17-2018, 06:33 PM
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Senior Member
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Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 5,391
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Quote:
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You have both scale and mealy bugs.
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Don't panic! 
Imidacloprid or thiacloprid take care of both at the same time.
__________________
Meteo data at my city here.
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Post Thanks / Like - 2 Likes
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