Hello, In January 2024, my 5yr old granddaughter wanted to plant an apple tree from seeds from her eaten apple. I let the seeds dry. Then I lightly sanded the seeds. I put the sprouts in a damp paper towel in an air tight tupperware container in the refrigerator for 3 months. In April I transferred the sprouts to small pots, then later to larger pots. We planted the two strongest plants in the backyard when the weather was right. The leaves are developing rusty spots that are spreading. It's killing one of the trees. I included photos of the healthier plant. I dont think I can save the other. I am in Golden Valley and the soil has been wet. No standing water. The soil usually drains well where the plants are but we have had a lot of rain so the soil is wetter than normal. Thank you