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pest or disease? Pot. Hoku Gem
Long-time lurker here, hoping someone can help me!
My Potinara Hoku Gem 'Sunspots', which I've had for about 3 years, has recently developed some red spots on it, as well as some brown "bubbly" blisters. I thought the blisters might be scale, but couldn't just rub it off, so I scratched one of the blisters, which of course left an open wound on the plant. There is one leaf which is worse than the others, and it is completely closed up. here are some links to pics of the plant: http://i23.photobucket.com/albums/b3...otsredarea.jpg http://i23.photobucket.com/albums/b3...spotsbumps.jpg http://i23.photobucket.com/albums/b3...potsbumps3.jpg http://i23.photobucket.com/albums/b3...potsbumps2.jpg http://i23.photobucket.com/albums/b3...GSunspots2.jpg http://i23.photobucket.com/albums/b3...GSunspots1.jpg Could the red spots be sun burn? I grow in a south facing window and have always had the plant in the same spot. None of my other orchids near it (BLCs) have any problems (yet). I have quaranteened the problem plant. What about the brown bubbly blister spots? another form of scale or another pest, or maybe disease? SHould I just cut off the problem leaves and dust with cinnamon? Is this something I should worry might spread to my phrags, brassias, and others, or might they be safe because they have a different type of leaf? Any advice is appreciated. Thanks, Mary |
pest or disease? Pot. Hoku Gem
Do you use grow lights?
I've had some of my Catts get purple spots, others have taken on a purplish hue, but they seem fine otherwise. As for the bumps, I am no expert but to me it looks like insect damage. I have seen similar spots on some of the new orchids I've got. Jack Better Safe than sorry |
pest or disease? Pot. Hoku Gem
Thanks Jack. Nope -- no room for grow lights.
Mary |
pest or disease? Pot. Hoku Gem
Anyone? I know there are a lot of experts here. Please?
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pest or disease? Pot. Hoku Gem
I am no expert but this link may help.
www.rv-orchidworks.com/ cultivate/care_pests.html Looks like you need some Physan and a sharp razor. Joe T |
pest or disease? Pot. Hoku Gem
On 24 Apr 2006 07:35:29 -0700, "jtill" wrote:
I am no expert but this link may help. www.rv-orchidworks.com/ cultivate/care_pests.html Looks like you need some Physan and a sharp razor. Joe T Red suggests too much sun for this plant at this time. Could be the balance of light=water=food is off. I would move it a touch further from your light source. Brown and wet blisters sounds like a problem that is probably not an insect caused. As Joe says Sharp Razor = one time use. Cut back in the good stuff. To cut off the bad. Use cinnamon to dust the cuts. Use Physan to kill the fungus spores around the area before you cut. Isolate the plant from the others and keep an eye on it. Cinnamon (yes, from the spice drawer) is a very good wound sealer and healing aid. IF the area at the cut starts getting this same marking you did not cut enough margin and left some of the infected tissue. OR it is spreading. If it is not a special meaning plant and a lot of it is involved - it might be best to cut your losses and toss this one so the rest don't pick it up. Make sure water does not bounce off this plant onto others that are not effected. Good luck. SuE http://orchids.legolas.org/gallery/main.php |
pest or disease? Pot. Hoku Gem
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pest or disease? Pot. Hoku Gem
Thanks everyone! I'll keep her quarantined (just in case...) and since
it's getting to be nice weather here in New England, will take her outside to spray & repot very soon. Steve -- all of the brown patches are the "raised blisters". Mary |
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