Q.Butternut Squash Leaves Turning Black
My butternut squash leaves suddenly started turning black and curling up. I live in FL; this started about same time as it got real hot – may or may not be related to heat. I sprayed once with Fertiloam Triple Action Plus, but it rained hard the next day. So far, squash on the vine not affected. What should I do?
Certified GKH Gardening Expert
It's hard to tell, but from the description, it could be an issue with stem blight. This article will help determine if this is the problem: https://www.gardeningknowhow.com/plant-problems/disease/gummy-stem-blight-control.htm