what is this

[kadosj]

mij san pedros have yellow spots what is it. is it bad en what can i do about it

http://img229.imageshack.us/my.php?image=cactus14ps.jpg

[blizznshot]

Can you scrape it off to reveal green underneath?  If so, it could be scale (bug infestation).  Is it squishy around the orange?  That could be a type of rot.  

Otherwise it could simply be some scarring from exposure.  I'm certainly no pro in this area.

[VajraPirate]

I don't know what it is but those are definately not your run of the mill pedros. Seed grown?

If not I'd doubt they were pedro at all. Trich, yes. Active, maybe. Pachanoi, I doubt it.

[kadosj]

san pedro is olso called  Pachanoi ore not

[Syd]

eat it!

[kadosj]

under the skinn is green flesh no moild are insects

[VajraPirate]

san pedro is olso called  Pachanoi ore not

I had no idea.  :roll:

[blizznshot]

I was referring to scale or mold being two separate things.  I realize that mold is not an insect.

Seeing that you can scrape the orange off to reveal green skin, it is likely to be scale insects.

[jikuhchagi]

Definately not pachnoi. Bridgessi maybe?

[visionarybear]

thats easy, from here that looks to be calloused scar tissue. may have been caused by an old infection or something?

and yes, san pedro is the common name for T. pachanoi

they look kinda like long spines peruvianus, least some of the others look peru like, the front one may be a bridgessii peruvianus cross? def not pachanoi tho..ribs dont look right for bridgessii. could be a macrogonus even, i dont have personal exp with those tho..

[Jupe]

I agree with V. Bear, scar tissue, looks ike it could be also caused by snails or slugs, as they leave wandering trails.

[blizznshot]

True enough...althought he did mention finding green skin remaining underneath the area in question.  That's a (painful) reminder of several scale accounts that I'm aware of.

[DrYRHead]

I agree with V. Bear, scar tissue, looks ike it could be also caused by snails or slugs, as they leave wandering trails.

I've seen stuff like that from frost bite too. Some cacti can handle the cold, and some can't.  :roll:

[Cassie]

I agree with VB too .. scar tissue. Other than that the plants all look great. They all look like some version on pachanoi or peruvianus to me. I was interested in this thread that MS Smith posted where these two varieties are now being considered too similar to be named separately.

http://www.spiritplants.org/phpbb/viewtopic.php?t=2165

[Hedon]

Did you have the cacti pushed up close to each other at one point? If the spines from the other cacti have been puncturing the tissue of one another perhaps the puncture wounds are causing this phenomena.
I have noticed this on my own cacti. Is the tissue sort of deflated looking and wrinkled in those areas? I can't tell from the photo.