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07-24-2007, 08:35 PM
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Senior Member
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Join Date: Apr 2006
Zone: 5a
Location: Montreal, Canada
Age: 64
Posts: 325
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What is wrong with my Dendrobium kingianum
hello everyone...
Just discover this on the leave of my den kingianum....
No sign of bug !
any ideas!
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07-24-2007, 08:44 PM
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Senior Member
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Join Date: Dec 2006
Zone: 5b
Location: St. John's, Newfoundland
Posts: 1,089
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Looks like mite damage to me. I have similar markings on mine before I finally got rid of the buggers!
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07-28-2007, 02:19 PM
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Senior Member
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Join Date: Oct 2006
Location: Paso Robles, CA
Posts: 260
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I just saw the same marks on mine as well, but like you said I can't find any bugs. Are mites that small? What would you reccomend?
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07-28-2007, 02:54 PM
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Senior Member
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Join Date: Sep 2006
Zone: 5a
Posts: 9,277
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If it's mites or thrips, they are tough to eradicate. Most "do-all" sprays that claim mite control don't quite "cut the mustard" so-to-speak. Kelthane is the prime chemical registered in US for mite control. Not sure what options exist for non-US growers. Higher moisture will help to keep them from getting established. Mites usually get going in very dry environments and take over on Juniper, certain orchids, etc. Prevention is easier than cure - hate to say it.
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07-30-2007, 04:48 PM
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Jr. Member
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Join Date: Jul 2007
Zone: 8b
Location: central Texas
Posts: 25
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that looks like mite damage. Very hard to get rid of. Try Neem Oil.
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07-30-2007, 05:05 PM
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Senior Member
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Join Date: Jun 2006
Zone: 9b
Location: Central Florida
Posts: 3,069
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Good information, any known "home remedy".
Here is a bit more information...
Orchid Pests and Diseases |
07-30-2007, 05:42 PM
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Senior Member
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Join Date: Jan 2007
Zone: 3a
Location: Edmonton, AB, Canada
Posts: 1,483
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I agree. it looks a lot like mites
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07-30-2007, 06:17 PM
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Senior Member
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Join Date: Jul 2007
Zone: 3a
Location: Edmonton, AB
Age: 34
Posts: 724
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Yeah I would say mites too.
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07-30-2007, 07:41 PM
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Senior Member
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Join Date: Apr 2006
Zone: 5a
Location: Montreal, Canada
Age: 64
Posts: 325
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thank you all!
I did a treatment with neem oil.... will see !
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07-31-2007, 12:03 AM
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Senior Member
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Join Date: Sep 2006
Zone: 5a
Location: Fredericton, N.B. Canada
Posts: 365
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I have eliminated spider mites with Neem Oil, Don't be afraid to give it a second application in a week or so.
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