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 Death is in the air!

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SneakyCuttlefish
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PostSubject: Death is in the air!   Wed Apr 06, 2016 4:40 pm

The smell of putrefaction has filled the air in my greenhouse as of late. I gave all my plants a final watering for the season then the weather started to cool off. I have now lost 2 very old ariocarpus to root rot. Very disappointed. In case anyone is wondering they absolutely stink when they begin to rot from the inside out.


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PostSubject: Re: Death is in the air!   Thu Apr 07, 2016 12:46 pm

Sorry to see this... If you dont mind, what were the temperatures around the time you did your final watering? (min/max). Currently in Perth its still relatively warm and I'm still watering my slow growers but after seeing this i am beginning to worry!
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PostSubject: Re: Death is in the air!   Thu Apr 07, 2016 1:11 pm

It dropped from a regular 26 min./33 max. humid air down to 18 min./30 max. with dry air. Not sure if it was weather related but it is the only thing I can put it down to as I usually never have problems with rot at this time of year.

I have a feeling that due to this years season being such an extremely hot summer the plants where too stressed out to deal with the watering and the temperature change all at once.

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PostSubject: Re: Death is in the air!   Fri Apr 08, 2016 9:28 am

Sorry about you could not see flowers in this year.
It is the flowering season of Ariocarpus.

I assume the cacti you lost are A. retusus.
I do not know exact age and size but you said "very old Ariocarpus".

I think a very old retusus should have more numbers of tubercles if it had grown continuously.
It may be stalled the growing for a while by some roots related problem.

An old retusus will grow continuously if it was health enough.

The photo is one of my retusus, 20 cm indiameter sown seed in 2003.
It has grown continuously.
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SneakyCuttlefish
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PostSubject: Re: Death is in the air!   Fri Apr 08, 2016 3:09 pm

I believe my plant was a hybrid of some sort. It never quite looked like any of the other retusus in my collection more like a retusus var. furfuraceus.

I believe this plant was grown with natural cycles of dormancy and water stressing during the dry season.

I only owned it for 2 seasons before it croaked. I have also lost another retusus the same way just a few weeks ago. However I have another retusus and a "trigonus x retusus" the exact same age and size, that seem to be healthy.

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PostSubject: Re: Death is in the air!   Sat Apr 09, 2016 9:08 am

I have understood.

I hope your remained Ariocarpus grow well.
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PostSubject: Re: Death is in the air!   Sun Apr 10, 2016 1:29 pm

Sorry to hear about your loss.
It would have been a very fine plant.
This season has been sh*t .. odd growth rates, tonne of pests and diseases.
I lost a bunch of astro hybrids which I've been growing up for over a year now they were only babies but still upsetting. Heaps of others have been knocked around as well.
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PostSubject: Re: Death is in the air!   Sun Apr 10, 2016 1:58 pm

Sorry to hear you lost them...it's always terrible to lose treasured plants, especially showpieces in the collection, but it does happen to us all at some time.

Not sure what the weather's like up there, but I haven't stopped watering yet and we're down to single digit minimums, I've only slowed down a bit - longer spells between watering - and I'm watering depending on the weather more, holding off if it's going to be cool etc. I usually don't stop watering altogether until about June.... A lot of my Ario's are flowering now..and other things are still growing....

Anyway, I hope it's the end of the losses for you this season...
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PostSubject: Re: Death is in the air!   Tue Apr 12, 2016 3:16 pm

It certainly has been a very tough season. Especially up here in the north. It has easily been one of the hottest years I can remember. It was unrelenting for weeks on end and very little rain. When it did rain I had to run around like a mad man trying to pull off all the fruits and flowers on many of my plants as the mould and mildew took over them almost overnight.

Apart from the ario's I only lost a few small mamillaria. However, the majority of my collection did very little growing. The only ones that seem to preform well were the trich's and various monstrose cereus.

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