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Unread 01-31-2008, 10:27 PM

Join Date: Jan 2008
Zone: 6b
Location: Hamilton, Ontario
Posts: 40
Default black bug eating leaves


Not sure if I am doing this correct with these pictures...shoot me if I do.

The other day I found this damage to 1 leaf of my phal, next day more... I soaked my plant under water and out came one of these bugs. Over the course of a week I have found at least a dozen of them in the room. I think a plant I brought in last fall must have had eggs or something... but here they are, I think they like orchids... I am on a killing mission. The plant from out doors I have now treated very well several of these bug are running so I hope I found the source... but my phal looks a bit sad... hope to get it to bloom this year it has been a few years.
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Unread 02-01-2008, 07:06 AM
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Join Date: Nov 2006
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Location: Michigan
Posts: 2,064

Ugly little guy.
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Unread 02-01-2008, 07:29 AM
Dorothy's Avatar
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Join Date: Apr 2007
Zone: 7b
Location: Long Island, NY
Age: 53
Posts: 7,357

I am sure your phal will bounce back and shower you with flowers
I hope you have eradicated the source of your problem.
That is one nasty looking bug!
I'm not sure but it looks kind of like a weevil
How evil

"Nothing beats the orchid -- as an offering of love"
- paraphrasing Marlowe Hood from 'Orchid Fossil Quells Evolutionary Quarrel'

Toto, I Have A Feeling We're Not In Kansas Anymore! ...
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Unread 02-01-2008, 10:07 AM
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Join Date: Dec 2007
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Location: Redford, Mi
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That sure does look like a weevil but they dont do that kind of damage, they poke holes in the leaves. It looks more like a slug was chewing on it, the weevils might be attacking the roots and that may be why it looks sad.
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Unread 02-01-2008, 12:08 PM

Join Date: Jan 2008
Zone: 6b
Location: Hamilton, Ontario
Posts: 40

Because they always came from between the pebbles when I soaked it, I had a look at the roots... ouch
the air roots are good and several of hem. Lower down looks like I have 1 good root...
In the last 24 hr I have not found a single bug...I hope they are gone..
I only looked at the one phal... the other one seems a lot healthier so I will not poke around.
So now what? how do I get the roots back and fast.
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Unread 02-01-2008, 02:45 PM
camille1585's Avatar
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Join Date: Oct 2007
Location: Wageningen, Netherlands
Age: 30
Posts: 10,089

I'm almost certain it's a weevil, probably a type of Otiorhynchus. The damage is also typical of them. Some species make holes in the leaves, and others notch out the leaf edge giving it a serrated edge.
In the case of some species, like the vine weevil, the larvae drop down into the soil to feed on the roots. Others, like the orchid weevil (which is not what you have since it doesn't have a long nose) develop in the orchid's bulbs, leaves or flowers.

I think that if you manage to get rid of the adults, you might be able to stop the problem. A lot of species have only 1 generation a year, so you most likely had little white grub eating the roots at one point. Keep an eye on the plants/roots throughout the spring and summer to make sure that they don't come back!


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Unread 02-01-2008, 07:54 PM
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Join Date: Jan 2007
Zone: 8b
Posts: 320

This is what I had to go do battle with today…Cuban Laurel Thrips...there always in my ficus…they don’t kill the tree but it makes the leaves look ugly…


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Unread 02-01-2008, 08:09 PM
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Join Date: Aug 2007
Zone: 7b
Location: Vancouver Island
Posts: 1,548

Eewww! What ugly looking bugs. I'm sure glad I haven't run into either of those.
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Unread 02-01-2008, 08:39 PM
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Join Date: Jul 2007
Zone: 4a
Location: Rumford, Maine
Posts: 2,672

Man oh man, I think I am going to have nightmares tonight! kiki
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Unread 05-16-2008, 01:23 PM

Join Date: Jan 2008
Zone: 6b
Location: Hamilton, Ontario
Posts: 40
Default Thank you

Today I can write some great news, and must thank all of you for the help.
My problem I had with these bugs is now gone, also learned from you guys some good tips.
The plant most affected by these bugs is now doing fine many new roots and leaves. the plant also affected but not as bad is now in bloom whoho

Last edited by Dorothy; 05-16-2008 at 06:02 PM.. Reason: I fixed the smiley
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