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Cattleya walkeriana with black spots on leaves Cattleya seedlings black patches
 
 
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Old 01-16-2016, 11:08 AM
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My Green Pets My Green Pets is offline
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Default Cattleya seedlings black patches
These were totally fine when they were growing in sphagnum. I moved them to better gro bark mix in November and have been battling blackening leaves ever since. I started spraying fungicide recently and doused them all in Physan 20 today.

What am I doing wrong? Someone's going to say something about calcium, I just know it









Meanwhile, mounted seedlings growing right along, no issues whatsoever.

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