Yellowing, Dying Leaves
I'm growing my first tomatoes in 35 years.Put them in the ground May 24. Overall all the plants seem to be doing well. Tomatoes are starting to appear on many of the plants.I've sprayed them with an organic worm casting tea fertilizer the last 3 weeks. I'm watering by hand and they seem to need water about once a week. I'm doing my best to water less rather than more. Soil is more on the sandy side and I live on the central coast of California, pretty good sun exposure. Lately several of the plants are showing leaves that turn yellow and then die off. (see attached pic). Mostly happening towards the bottom of the plant. I've been trimming most of the dead stuff off. Any ideas on what it might be and what, if anything, to do about it?