Help! With older yellow leaves (corn, pumpkins)
Thank you for your question. I think your plants need to be fertilized. Yellowing indicates a lack of nitrogen, and corn, especially, needs a lot. If you did not add fertilizer before you planted the seeds, now is the time. The following Extension publication has directions for this (page 10) and other vegetable gardening advice: https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/em9027.pdf Good luck!