I woke up today to quite a sad sight! ALL of my cucumber plants (17 I think) have what I am guessing is dampening off. And 5 out of 8 of my Roma tomato plants are affected as well. From what I understand, I have to dispose of the affected plants so they don't affect others. But I guess more importantly I don't know how to stop this from happening. Do I need to test pH? I garden organic only so I don't know what to put on it that is safe either. This happened last year as well. But only to my cucumbers and carrots (they were not full grown plants, just large seedlings). Everything else I planted was mostly transplants I have bought. Please help me prevent this from happening anymore!
Certified GKH Gardening Expert
They may be damping off (which is cause by a fungus) or root rot if they were over watered. Make sure the drainage is good and add some fungicide to the soil to keep off the fungus. Here is more information on damping off: https://www.gardeningknowhow.com/garden-how-to/seeds/what-is-damping-off.htm