Start over. I don't think this is wind damage. Perhaps the dreaded "damping-off" we hear so much about. Keep the soil as dry as possible while still providing moisture to the roots. Did you have a frost? Cukes are very cold sensitive. Is there any damage to the stems? Perhaps insects chewed thru the stems when you put them outside. What's that drooping seedling in the left side of the first picture? Was it healthy and straight-up before drooping over? Hopefully, someone else can be more helpful than I am.

@Jean001a Thanks! Here is another image that may provide a better look at what's happening. However, I think I would rather deal with a brief water shortage than Angular Leaf Spot. From what I've been reading it eventually kills the plant! Thanks again!

Ok I assume you know that homemade concoctions like that can be just as damaging to plants as any commercial product can, especially when used inappropriately? That spray alone could be the cause of your problems in the photos above. Are you familiar with the basic 3 rules of pest control that we often discuss here? 1. you must ID the specific pest 2. you have to evaluate the damage they do. Is it really so severe that intervention is required? 3. you then choose the least toxic remedy listed as specific for that pest. So far all you have ID'd is some spider mites. Ants are not a garden pest (except for fire ants) and can often be beneficial, at worst, neutral. Aphids are not normally associated with trees. They are a domestic crop pest. So do you know for a fact you have aphids? Can you attest to this homemade mix actually killing the spider mites? They are quite difficult to eradicate even with commercial products if there is a bad infestation so homemade remedies usually have little effect on them. And a "few" spider mites pose no real threat to most plants. The mix you describe would have to be a contact pesticide as there are no systemic effects in any of those contents. That means it could only work if you sprayed it directly on the bug. Otherwise it is just a waste of time and potentially damaging the plant leaves in the process. Anything that coats the leaves can suffocate the leaves by blocking the surface pores and no O2/CO2 exchange happens and cells begin to die. I'd suggest you set the spray aside until you can actually ID what, if any, bug problems you have and consider doing some hand picking and squishing instead of spraying the whole plant, Then instead focus on the nutrient/soil issues your plants are telling you about. In the pics your soil appears awfully compacted and wet so heavy soil amending and re-evaluating your watering habits is in order. Then sit down and evaluate your fertility program - what nutrient sources you provide, in what form and how frequently. See if you don't pick up on some clues there. Hope this helps. Dave

considering how many times you sprayed.. and with so many different things... im at a loss to figure out which one damaged the leaves ... and if we cant rule out spray damage.. its of no use to contemplate media deficiencies ... if you still have seed.. why not just start a few more ... and if you end up with the same issue.. without the spraying.. we might be able to think it is a media problem ... what does this mean: mushroom compost of somewhat dubious provenance ken