My potato plants were doing real well and then all of a sudden the leaves were turning black and dying just over night. Also, my yellow squash and zucchini. What's going on? Same with my beans. Thanks, Woodie H.
Potatoes and Squash Wilting
Certified GKH Gardening Expert
I'm sorry the leaves on your plants are turning black! There are usually a couple of possible reasons for this: overwatering is a common one; if you've been careful about how much water you've been giving your vegetable plants, then it could be disease. There are several types of diseases that cause black leaves listed in this article: https://www.gardeningknowhow.com/edible/vegetables/pepper/black-leaves-on-pepper-plants.htm