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#1
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Help! Brown spots on deflasked Paphs
Good afternoon everyone,
Well- the first troubles have struck. I deflasked three flasks of PEOY on Thursday and put the compots into baggies for better humidity- keeping them slightly open at the top. Pulled them all out last night since the medium is not drying as I would like and I will probably be going easier on the baggie treatment going forward. Plants look great, but in one of the baggies- both compots have just a few tiny brown spots- perhaps 5 total- on four different leaves. There are also two crease marks on leaves that are brown, but I am pretty sure that originated as mechanical damage. I did not spray these plants on deflasking. Physan 20 was recommended to me if any troubles arose, but I have not been able to find any locally. So instead I got some Neem Oil. Specifically, I got Green Light Powerdy Mildew Killer- which is 70% Clarified Hydrophobic extract of Neem Oil and 30% "inert ingredients." It was the closest I could come to Neem Oil and I found no other product with labelling that made me comfortable using it on orchids. Is this safe for newly deflasked Paphs? Also, what concentration would you all recommend? I am guessing I need a weak solution here, but I am not sure how weak to make it. The problem is still very minor, so my hope is to use as little of this as possible. Thanks for any thoughts! |
#2
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Help! Brown spots on deflasked Paphs
Around here, Physan is also called "Consan" if that helps.
-- Hugs, Molli "Elpaninaro" wrote in message ... Good afternoon everyone, Well- the first troubles have struck. I deflasked three flasks of PEOY on Thursday and put the compots into baggies for better humidity- keeping them slightly open at the top. Pulled them all out last night since the medium is not drying as I would like and I will probably be going easier on the baggie treatment going forward. Plants look great, but in one of the baggies- both compots have just a few tiny brown spots- perhaps 5 total- on four different leaves. There are also two crease marks on leaves that are brown, but I am pretty sure that originated as mechanical damage. I did not spray these plants on deflasking. Physan 20 was recommended to me if any troubles arose, but I have not been able to find any locally. So instead I got some Neem Oil. Specifically, I got Green Light Powerdy Mildew Killer- which is 70% Clarified Hydrophobic extract of Neem Oil and 30% "inert ingredients." It was the closest I could come to Neem Oil and I found no other product with labelling that made me comfortable using it on orchids. Is this safe for newly deflasked Paphs? Also, what concentration would you all recommend? I am guessing I need a weak solution here, but I am not sure how weak to make it. The problem is still very minor, so my hope is to use as little of this as possible. Thanks for any thoughts! |
#3
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Help! Brown spots on deflasked Paphs
Around here, Physan is also called "Consan" if that helps.
-- Hugs, Molli Hi Molli, Whew! I got your post and made it to the nursery just in time to make the switch and get the Consan. You win the gold star today! Thanks very much for the help. As fast as these infections can spread, you just may have saved about 100 lives today. Thanks again, Tom. |
#4
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Help! Brown spots on deflasked Paphs
Hi Molli, Whew! I got your post and made it to the nursery just in time to make the switch and get the Consan. You win the gold star today! Thanks very much for the help. As fast as these infections can spread, you just may have saved about 100 lives today. Thanks again, Tom. Tom, I just use cinnamon... Sprinkle affected spots. Smells better than physan. Or, usually, I let the little buggers die. If they are that vulnerable to infection when they are little, they are likely to be vulnerable when they are big. A bit darwinistic of me. Of course with expensive flasks it is harder to do that. Rob -- Rob's Rules: http://www.msu.edu/~halgren 1) There is always room for one more orchid 2) There is always room for two more orchids 2a. See rule 1 3) When one has insufficient credit to purchase more orchids, obtain more credit |
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