Splotchy yellowing on straightneck squash
Can anyone tell me why some of the leaves are getting this splotchy yellowing on the leaves? The vast majority of the leaves look fine, and the plants all look very strong and healthy in general. I applied 13-13-13 when the plants were young, then applied 34-0-0 about 3-4 weeks after that. It's now been about another month or so. Perhaps there's a nutrient deficiency? My soil test indicates a good pH level. Thanks.