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Offlinenightbringer
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wtf is this black spot on my san pedro?
    #11144404 - 09/28/09 05:05 PM (11 years, 7 months ago)

Is it some kind of fungus? Should I try fungicide or just chop the tip off?

No idea where it came from, though my roommate's theory is that it has been too humid in our apartment.

On the upside, it doesn't seem to be advancing very fast.







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OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11144428 - 09/28/09 05:08 PM (11 years, 7 months ago)

update: I fertilized it on Saturday and the spot seems to have shrunk a little. (just checked on it)


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OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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OfflineGreenMachine
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11144458 - 09/28/09 05:12 PM (11 years, 7 months ago)

chop it off.

it looks like rot to me.


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Look behind you, do you see it?:unbelievable:


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Invisibleferrel_human
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Re: wtf is this black spot on my san pedro? [Re: GreenMachine]
    #11145085 - 09/28/09 07:03 PM (11 years, 7 months ago)

Quote:

GreenMachine said:
chop it off.

it looks like rot to me.




its not rot but you should cut it off. is it freezing where your at? looks like freezer burn to me. not the refridgerator type.


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Nature is my church and walking through it is gospel. It tells no lies and reveals all to those who look, and listen, closely.
-Karode


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Offlinesatyr
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Re: wtf is this black spot on my san pedro? [Re: ferrel_human]
    #11145572 - 09/28/09 08:30 PM (11 years, 7 months ago)

Fertilizer would not have changed anything, and the shrinking your experiencing is due to the spot rotting away.
I would pull that thing out of the soil immediately and check the root system. Root rot will often appear with no signs other than a rotted tip.


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Looking for Astrophytum asterias specimens; have cacti for trade :pm:


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OfflineHorticulture
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Re: wtf is this black spot on my san pedro? [Re: satyr]
    #11146940 - 09/28/09 11:39 PM (11 years, 7 months ago)

Yikes! Almost looks like someone hit it with a blow-torch.


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The Plant Mage Guild


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: ferrel_human]
    #11149359 - 09/29/09 11:37 AM (11 years, 7 months ago)

I live in northern Illinois... actually it's been over 80 degrees in my room consistently for almost the entire time since I moved in in August. I only just started getting chilly today.


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: satyr]
    #11149381 - 09/29/09 11:43 AM (11 years, 7 months ago)

if that's the case, what do i need to do to stop root rot? Transplant into new soil?


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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OfflineCactusdan
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11149395 - 09/29/09 11:45 AM (11 years, 7 months ago)

Just take a sterilized knife to it until you see no more black nastiness :smile:

It looks severely etiolated as well, give that poor thing some more light!


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11149475 - 09/29/09 12:01 PM (11 years, 7 months ago)

unfortunately easier said than done... my balcony and the window of my room both face directions that only get a couple hours of sunlight, maximum, per day, and as we approach fall it will probably get even worse. This last month was probably the best sunlight my cacti have ever gotten.

Would a heat lamp be a wise investment?


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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OfflineCactusdan
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11149486 - 09/29/09 12:06 PM (11 years, 7 months ago)

Invest in some grow lights to help aid with the lighting lighting, although it will never be as good as full sun.


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11149529 - 09/29/09 12:18 PM (11 years, 7 months ago)

just chopped the tip off... looks normal on the inside.

If it were root rot, would there be black all the up through the core, or no?


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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OfflineCactusdan
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11149535 - 09/29/09 12:20 PM (11 years, 7 months ago)

Yeah, it was probably an infection due to the tip being etiolated, I find that tends to make the flesh more susceptible to disease.


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11149605 - 09/29/09 12:34 PM (11 years, 7 months ago)

ok, that's a relief...

would a normal household lamp, in this case one with multiple bulbs that can be positioned where you want 'em and gets really hot when it's been on for a while, be an tolerable light source for a cactus in the absence of sunlight? It's cloudy here.


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11149632 - 09/29/09 12:41 PM (11 years, 7 months ago)

here's what I came up with for now...

in the absence of sunlight or a grow lamp, is this better than just letting them sit in the dark???



--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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OfflineCactusdan
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11149707 - 09/29/09 01:02 PM (11 years, 7 months ago)

Those poor poor things need far more light than that :sad:

Get some CFLs for the time being, I think I saw some 46W CFLs at Target the other day for 8.50 each, unless you have enough to invest in a HPS or MH setup.

PS Your P-Bass is missing a few strings :tongue:


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Offlinenightbringer
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Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11149753 - 09/29/09 01:10 PM (11 years, 7 months ago)

yeah, I don't really have the money or space to invest in the real deal right now. I will check out those bulbs you're talking about.

Thanks for the assistance. I do genuinely feel bad about the treatment these sacred plants have gotten from me, not by choice mind you, but I should have known this is not an ideal climate for them.


--------------------
OM MANI PADME HUM

Buddha of great compassion, hold me fast in your compassion. From time without beginning, beings have wandered in Samsara, undergoing unendurable suffering. They have no other protector than you. Please bless them that they may achieve the omniscient state of buddhahood.

With the power of evil karma gathered from beginningless time, sentient beings, through the force of anger, are born as hell beings and experience the suffering of heat and cold. May they all be born in your presence.


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InvisibleMycOhunter


Registered: 03/05/09
Posts: 649
Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11150205 - 09/29/09 02:23 PM (11 years, 7 months ago)

Quote:

Cactusdan said:
Yeah, it was probably an infection due to the tip being etiolated, I find that tends to make the flesh more susceptible to disease.


It sure does look like exposure to the cold.

scroll down to frost damage section.

http://cactiguide.com/cactipests/#environmental


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True Community:  The process of deep respect and true listening for the needs of the other people in this community.


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Invisiblecpw1971
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Re: wtf is this black spot on my san pedro? [Re: nightbringer]
    #11150209 - 09/29/09 02:23 PM (11 years, 7 months ago)

Quote:

nightbringer said:
just chopped the tip off... looks normal on the inside.

If it were root rot, would there be black all the up through the core, or no?



yes

  also the base would turn brown and be squishy


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InvisibleMycOhunter


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Re: wtf is this black spot on my san pedro? [Re: Cactusdan]
    #11150235 - 09/29/09 02:28 PM (11 years, 7 months ago)

Quote:

Cactusdan said:
Those poor poor things need far more light than that :sad:

Get some CFLs for the time being, I think I saw some 46W CFLs at Target the other day for 8.50 each, unless you have enough to invest in a HPS or MH setup.

PS Your P-Bass is missing a few strings :tongue:


I bought a couple 100W CFL's for 12.25, and one 150W for 8.50 at lowes.

They do not produce the thickest cacti, but they work fairly well, especially for the price, they are awesome for seedlings though.


--------------------
True Community:  The process of deep respect and true listening for the needs of the other people in this community.


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Mushrooms, Mycology and Psychedelics >> The Ethnobotanical Garden

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