San Pedro has white spots

[Meduzz]

my san pedro has these big yellow spots all over the old part (the cutting from azarius part). I know that these yellowish brownish greenish spots aren't that bad but in these spots there are white spots like there is no more chlorophyl in those parts. anyone has experience with such spots? The part that has grown on the cutting from azarius is just fine.
I water once a week with NPK 5-7-5.

 

[Guest]

do you use the fertilizer once a week as well ? i'd say too much fertilizer...

 

[skoeip]

could you post a pic of the spots and the cactus? and stop with the fertilizer, you dont have to use it that much.

 

[Meduzz]

yeah i guess to much nitrogen. I use very small amounts of fertilizer but i give it weekly. it does indeed look like overfertilization, but i had never before seen it on a cactus. thanks for the advise. how often should i fertilize? and would there be any damage to the plant or (maybe more important) to the amount of mescaline?

cant post a picture because at the moment i don't have any camera

 

[Guest]

i don't know if it will harm the mescaline content, but i am sure that nitrogen burning won't do it no good. i've checked the adam gottlieb and some old book from the peyote churche i have, and none mentions nitrogen burning. however, i am downl...errr, buying some new books and if i find anything, i'll be in touch.

 

[skoeip]

I almost never fertilize my san pedro's, perhaps once or twice a year. but I do put them in new soil evry year and that seems to work out great for my san pedro's

 

[Goran.Hrsak]

Transport yours cacti into another pot with fresh NON CACTI SOIL-regular. And spray it with little pesticide and fungicide. And of course water it regurarly. You will see- problems will be finito.
P.S.-do not eat the cacti 6 months after spraying

P.P.S - WHAY ARE EVERYONE SOO CRAZY BOUT DESERT SOIL AND LITTLE WATER. CACTI ARE CAUSE THIS ENVIROMENT LIKE THAY ARE TODAY. CHANGE ARE ALWAYS GOOD AND MOOD LIFTING, AND SOO ARE FOR PLANTS. 8) :wink:

 

[Meduzz]

heres an image: doesn't look quite good, at first i tought it was rotting but the spots are hard.

as the spots got worse, i now finaly put him in new soil and took a picture:

as you can see the top part is still healhty, this is the part that grew on the cutting i got from azarius. only the cutting part is damaged. maybe i should cut the healthy part and plant it? or will the cactus be ok? :?:

(PS: the cactus is about 35-40cm high)

EDIT: picture is taken from the worst side of the cactus where most spots are, other side has only few spots

 

[Goran.Hrsak]

This is some lower plant attack, meaning fungi. Spray cacti with some herbicide/pesticide/fungicide cocktail but my recommendation is first to cut the upper side of cacti and replant it. If it is spider/or fungi attack, cocktail will help to the cacti resisting the disease. But when I look the picture closely it looks like frost bites or maybe lack of water and wrong soil. You can try that and after some weeks see if brown wooding is spreading.
RESPOND TO THIS-how long is this cacti in new soil.

 

[Meduzz]

RESPOND TO THIS-how long is this cacti in new soil.

now about 2 hours, five minutes before picture was taken

 

[Goran.Hrsak]

Do not expose itto hot sun next seven days and send another pict. And if this brownes contin you know my tips from post before. Sin Loi.

 

[Meduzz]

shouldn't i give it a lot of sun because i put it in other soil? i'm pretty sure it's because i gave WAY to much fertilizer. it somehow makes me think about overfertilization with regular plants.

 

[Goran.Hrsak]

My question why you fertilize cacti when you know that it is desert and poor soil plant? Try not to expose cacti to the frying sun, build some shad and if this brownes continue (rooting) make cutting and try combination with her-pest-fung/icide.

 

[Meduzz]

ok, i'll put it out of the sun and follow your advise
thx for the help

 

[Goran.Hrsak]

Send report on my PM ad here. PM cause maybe I would not get reply so why to risk. In 5to7 days photo and yours subjective opinion is it going better or not. hopefully not worse.
But do not worry.

 

[Meduzz]

i just noticed that cutting the upper part is not an option because there are verly light spots, so light i had to look carefully before i saw them.

i don't know, but i have a feeling its comming from inside the plant :?

 

[Goran.Hrsak]

Spray it with fungi-pest-(lighter)bicide. This is disease

 

[Meduzz]

is there any home-makeable recipe for this product or do i have no choice but buy some?

 

[Goran.Hrsak]

There should be recipes for fungi-pest-herbicide or how to make some from household materials and what have such properties.
But I also know that you can buy this for very cheap price. I am have vineyard so for protection of course need to use such chems. Bout 5-10€.