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#1
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Problem with phal. Base of leaf black
This phal just finished blooming today. When I bought it, it was
crammed into a very small pot. There was almost no growing medium, but it had gorgeous blooms and was doing very well, so I decided to leave it alone until it finished blooming. I noticed today that the base of the leaves is turning black. What should I do? I haven't repotted it yet. Photo is he http://home.comcast.net/~jbcamel/orchidproblem.jpg thanks. |
#2
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Problem with phal. Base of leaf black
if that black area is soft, you've got some sort of crown or bacterial
rot. 1) isolate plant asap 2) pull it out of the pot, clean off all the old medium, treat the black area with hydrogen peroxide or one of the physans (or even remove the leaf and cut away as much of the black as you can reach) and then dust with cinnamon 3) repot and keep pouring H2O2 or physan on it about once a week. see also: http://www.firstrays.com/remedies.htm under 'fungicides' and 'crown rot' and http://orchidexchange.com/Photos/stemrot.htm if however the black area is hard and dry, i'd just rinse it down with H2O2 when you repot and keep an eye on it. --j_a |
#3
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Problem with phal. Base of leaf black
On Dec 11, 12:59*pm, wrote:
if that black area is soft, you've got some sort of crown or bacterial rot. 1) *isolate plant asap 2) pull it out of the pot, clean off all the old medium, treat the black area with hydrogen peroxide or one of the physans (or even remove the leaf and cut away as much of the black as you can reach) and then dust with cinnamon 3) repot and *keep pouring H2O2 or physan on it about once a week. see also: http://www.firstrays.com/remedies.htm under 'fungicides' and 'crown rot' and http://orchidexchange.com/Photos/stemrot.htm if however the black area is hard and dry, i'd just rinse it down with H2O2 when you repot and keep an eye on it. --j_a Thanks. Repotted it this morning. While the black area feels hard, the leaves that had it came off easily. Not good I'm sure. I will take your advice about treatment. Thanks again. |
#4
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Problem with phal. Base of leaf black
Read al's account of his plant for physan dosage... Personally I have
a bottle of the stuff but have never used it. --j_a Jane wrote: On Dec 11, 12:59�pm, wrote: if that black area is soft, you've got some sort of crown or bacterial rot. 1) �isolate plant asap 2) pull it out of the pot, clean off all the old medium, treat the black area with hydrogen peroxide or one of the physans (or even remove the leaf and cut away as much of the black as you can reach) and then dust with cinnamon 3) repot and �keep pouring H2O2 or physan on it about once a week. see also: http://www.firstrays.com/remedies.htm under 'fungicides' and 'crown rot' and http://orchidexchange.com/Photos/stemrot.htm if however the black area is hard and dry, i'd just rinse it down with H2O2 when you repot and keep an eye on it. --j_a Thanks. Repotted it this morning. While the black area feels hard, the leaves that had it came off easily. Not good I'm sure. I will take your advice about treatment. Thanks again. |
#5
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Problem with phal. Base of leaf black
Physan is good stuff. Use it.
Diana wrote in message ... Read al's account of his plant for physan dosage... Personally I have a bottle of the stuff but have never used it. --j_a Jane wrote: On Dec 11, 12:59?pm, wrote: if that black area is soft, you've got some sort of crown or bacterial rot. 1) ?isolate plant asap 2) pull it out of the pot, clean off all the old medium, treat the black area with hydrogen peroxide or one of the physans (or even remove the leaf and cut away as much of the black as you can reach) and then dust with cinnamon 3) repot and ?keep pouring H2O2 or physan on it about once a week. see also: http://www.firstrays.com/remedies.htm under 'fungicides' and 'crown rot' and http://orchidexchange.com/Photos/stemrot.htm if however the black area is hard and dry, i'd just rinse it down with H2O2 when you repot and keep an eye on it. --j_a Thanks. Repotted it this morning. While the black area feels hard, the leaves that had it came off easily. Not good I'm sure. I will take your advice about treatment. Thanks again. |
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