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Old 31-10-2004, 06:02 PM
Brian Vogel
 
Posts: n/a
Default "Mystery" disease. . .

Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian

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Old 31-10-2004, 07:10 PM
Ray
 
Posts: n/a
Default

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Brian Vogel" wrote in message
...
Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian



  #3   Report Post  
Old 31-10-2004, 07:10 PM
Ray
 
Posts: n/a
Default

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Brian Vogel" wrote in message
...
Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian



  #4   Report Post  
Old 31-10-2004, 07:10 PM
Ray
 
Posts: n/a
Default

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Brian Vogel" wrote in message
...
Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian



  #5   Report Post  
Old 31-10-2004, 10:41 PM
Brian Vogel
 
Posts: n/a
Default

Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian


  #6   Report Post  
Old 31-10-2004, 10:41 PM
Brian Vogel
 
Posts: n/a
Default

Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian
  #7   Report Post  
Old 31-10-2004, 10:43 PM
Ray
 
Posts: n/a
Default

I vote for Enstar II as a post-scrubbing treatment and drench. It is an
insect growth regulator, and no maturation means no reproduction.

It's damned expensive on the surface - $85 for a 5-ounce bottle - but it
goes a very long way.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Brian Vogel" wrote in message
...
Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian



  #8   Report Post  
Old 31-10-2004, 10:43 PM
Ray
 
Posts: n/a
Default

I vote for Enstar II as a post-scrubbing treatment and drench. It is an
insect growth regulator, and no maturation means no reproduction.

It's damned expensive on the surface - $85 for a 5-ounce bottle - but it
goes a very long way.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Brian Vogel" wrote in message
...
Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian



  #9   Report Post  
Old 31-10-2004, 11:23 PM
profpam
 
Posts: n/a
Default

Volck Oil is a good source for ridding scale. It, however, has been several
years that I had an even slight problem; however, this seemed to do the trick.

.. . . Pam
Everything Orchid Management System http://www.pe.net/~profpam/page3.html

-----------------------

Brian Vogel wrote:

Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian


  #10   Report Post  
Old 31-10-2004, 11:23 PM
profpam
 
Posts: n/a
Default

Volck Oil is a good source for ridding scale. It, however, has been several
years that I had an even slight problem; however, this seemed to do the trick.

.. . . Pam
Everything Orchid Management System http://www.pe.net/~profpam/page3.html

-----------------------

Brian Vogel wrote:

Ray wrote:

No mystery, I'm afraid. A soft scale.

Dip a toothbrush in some water containing liquid dishwashing detergent (1
tablespoon per gallon), and scrub away.

Ray,

I will certainly try this. Your advice
has been very helpful in the past.

Are there any insecticides, systemic or
otherwise, that are good for this? I have the
feeling that at this stage there's no way to
"get it all".

Brian




  #11   Report Post  
Old 01-11-2004, 03:27 AM
Kenni Judd
 
Posts: n/a
Default

The Enstar that Ray recommended is not something I'm familiar with.
However, it sounds like a long-term solution. This is not entirely a bad
thing, and I'm going to look into it. But if you need a quick kill, try
acephate 75% [sold under various brand names like Orthene, Isotox, etc.].
But you must read the label; if the percentage is other than 75%, you need
to adjust the dosage accordingly.
--
Kenni Judd
Juno Beach Orchids
http://www.jborchids.com
"Brian Vogel" wrote in message
...
Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian



  #12   Report Post  
Old 01-11-2004, 03:27 AM
Kenni Judd
 
Posts: n/a
Default

The Enstar that Ray recommended is not something I'm familiar with.
However, it sounds like a long-term solution. This is not entirely a bad
thing, and I'm going to look into it. But if you need a quick kill, try
acephate 75% [sold under various brand names like Orthene, Isotox, etc.].
But you must read the label; if the percentage is other than 75%, you need
to adjust the dosage accordingly.
--
Kenni Judd
Juno Beach Orchids
http://www.jborchids.com
"Brian Vogel" wrote in message
...
Hello All,

That's probably not a mystery to a number
in the r.g.o cohort. I have posted 2 photographs
on a.b.p.o under the titles "Disease Picture" #1
& #2.

This particular catt is now in very sad shape.
At first I thought I was dealing with mealybugs and
tried Neem Oil. No dice. Whatever this stuff is
doesn't ever turn "fluffy and gray black" like mealys
do.

Photo #1 shows how this stuff starts along
the base of the rhizome, looking a bit like mealys
or snowy mold. The second shows the blackening
process taking blace on one pseudobulb (lower left)
and one that's gone (directly across, the pseudobulb
that's on the very top of the three that are visible).

Several of my plants have developed this over the
summer, but this is the only one that it appears to be
killing. The two others only have a white coating around
the base of all the pseudobulbs with no blackening or
plant death at all.

Any help is most appreciated.

Brian



  #13   Report Post  
Old 07-11-2004, 04:06 PM
Brian Vogel
 
Posts: n/a
Default

Kenni Judd wrote:

The Enstar that Ray recommended is not something I'm familiar with.
However, it sounds like a long-term solution. This is not entirely a bad
thing, and I'm going to look into it. But if you need a quick kill, try
acephate 75% [sold under various brand names like Orthene, Isotox, etc.].
But you must read the label; if the percentage is other than 75%, you need
to adjust the dosage accordingly.


Are you suggesting an undiluted application with a brush?

Thanks to you, Pam, & Ray for the suggestions.
I did use what used to be marketed as Isotox with
great results for both hard scale and mealys. These
plants got the same spraying schedule, but it didn't
kill the soft scale off.

I think I'm going to have to remove these from their
cocohusk chips, do a through scrubbing as Ray suggested,
then Volck/Neem/Isotox (probably the latter) before
repotting.

I'm just finishing up a move and am still trying to get
a basement light system set up for my collection (which
isn't going according to schedule). I do appreciate the
suggestions.

Brian
  #14   Report Post  
Old 07-11-2004, 04:06 PM
Brian Vogel
 
Posts: n/a
Default

Kenni Judd wrote:

The Enstar that Ray recommended is not something I'm familiar with.
However, it sounds like a long-term solution. This is not entirely a bad
thing, and I'm going to look into it. But if you need a quick kill, try
acephate 75% [sold under various brand names like Orthene, Isotox, etc.].
But you must read the label; if the percentage is other than 75%, you need
to adjust the dosage accordingly.


Are you suggesting an undiluted application with a brush?

Thanks to you, Pam, & Ray for the suggestions.
I did use what used to be marketed as Isotox with
great results for both hard scale and mealys. These
plants got the same spraying schedule, but it didn't
kill the soft scale off.

I think I'm going to have to remove these from their
cocohusk chips, do a through scrubbing as Ray suggested,
then Volck/Neem/Isotox (probably the latter) before
repotting.

I'm just finishing up a move and am still trying to get
a basement light system set up for my collection (which
isn't going according to schedule). I do appreciate the
suggestions.

Brian
  #15   Report Post  
Old 08-11-2004, 11:00 PM
Kenni Judd
 
Posts: n/a
Default

YIKES! NO! You need to dilute to the appropriate recommendations for a 75%
acephate product -- which requires higher math if what you can buy has a
different % of the active ingredient (acephate). But NO, absolutely not,
even if you get a liquid rather than a wettable powder, should you brush it
on "straight."

Also, if you have already used Isotox [the active ingredient of which is
acephate], then you should use something different next time. Oils are good
if your weather is cool Other prospects are Sevin, Malathion, Cygon ...
--
Kenni Judd
Juno Beach Orchids
http://www.jborchids.com

Are you suggesting an undiluted application with a brush?

Thanks to you, Pam, & Ray for the suggestions.
I did use what used to be marketed as Isotox with
great results for both hard scale and mealys. These
plants got the same spraying schedule, but it didn't
kill the soft scale off.

I think I'm going to have to remove these from their
cocohusk chips, do a through scrubbing as Ray suggested,
then Volck/Neem/Isotox (probably the latter) before
repotting.

I'm just finishing up a move and am still trying to get
a basement light system set up for my collection (which
isn't going according to schedule). I do appreciate the
suggestions.

Brian





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