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Advice please

Posted: Wed Aug 12, 2020 11:21 pm
by Sheila
Hi,

I was contacted by phone by someone who was asking for advice on a plant. He believes it to be a Trichocereus, and it has developed some unpleasant black blodges. There appear to be other marks as well.

I asked him to send me some photos which I am posting below. The plant is normally grown on a windowsill but was placed outside in full sun. It has also been fertilised with some sort of generic plant fertiliser, it has not been sprayed. Before I saw the pictures I suggested that it was a very severe case of scorch caused by the sudden exposure to bright sunlight.

I would be very grateful for the opinion of other people who are more knowledgeable than I am, which I will pass on to him.

Thank you.
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Re: Advice please

Posted: Wed Aug 12, 2020 11:40 pm
by Redjimp
Bridgesii are prone to this in my experience , I think it is more the change in humidity rather than scorch as I have had it happen to one placed in shade but a much more humid environment .As long as the growing tip is undamaged the plant will recover though those areas will cork and maybe deflate.

Re: Advice please

Posted: Thu Aug 13, 2020 10:51 am
by AnTTun
Mine tend to get that at growing tip. Usually just when they are the right size for grafting. Then I have to wait for offsets... :(

So yeah, quite common thing for that species...

Re: Advice please

Posted: Fri Aug 14, 2020 10:35 am
by Sheila
Hi,

Thank you to both of you for your comments which I have passed on to the owner of the plant.

Best wishes,