Brown spots on recent deflasked P. adductum

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Tony

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I have treated all of my plants - including adductum - with the stuff since the company asked me to carry it back in 2014, and I have never seen a negative reaction.

To this day, my biggest customers are breeders who buy it specifically for ex-flask seedlings.
I have a dozen or so other compots alongside my adductum, all multifloral species and hybrids, which seem perfectly happy with garden solution but every time I gave it to adductum a few would rot out within 24 hours. I have no idea why, they would be growing perfectly well all month then just fall apart into a pile of leaves after application.
 

Ray

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FYI, neither KelpMax nor Garden Solution must be applied as a foliar spray. Using them as a drench of the medium is also effective.
 

Tony

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I do apply as a drench once monthly. They are great products and I'm thrilled with how all of my other plants have grown, but for whatever reason my adductum seedlings just collapse after application.
 
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Never had this problem with sam tsui or chuck acker
Just letting everyone know that Sam Tsui of Orchidinnusa.com 4th of July sale ends tomorrow. Discounts starting at 10% for all orders going up as high as 35% through July 15 2020.
 
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Just letting everyone know that Sam Tsui of Orchidinnusa.com 4th of July sale ends tomorrow. Discounts starting at 10% for all orders going up as high as 35% through July 15 2020.
 

SouthPark

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I would just spray the leaves with copper spray to begin with - top and bottom of the leaves. Or could try something like monterey garden phos (used to be agri-fos). Maximising air-movement is probably not necessary - or could even be problematic. Gentle air-movement would be nice. Gentle movement. Also - if possible, don't put water on the leaves if you can help it - even when there is air-movement. Or at least - don't put water on the leaves for now.
 
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