Look on the following web site. I believe this is bacterial spot. Symptoms: Bacterial speck is widely distributed. Symptoms may appear on any plant part. Leaves of infected plants are covered by small, dark brown, irregular patches of necrotic tissue that are surrounded by yellow halos. Disease severity is increased by leaf wetness from sprinkler irrigation, rain, or heavy dews. Control: Minimize wetting of the leaves by using drip or furrow irrigation. Copper sprays provide effective control. Joe Here is a link that might be useful: Texas Tomato disease site

Fungus gnats are merely nuisance pests. But a pain inside when proliferating - you must break their life cycle to defeat them. The 7-year old brought a dang pumpkin home from school (!) along with fungus gnats, just after we eradicated them...sigh. A lot of work. Nonetheless, you have a sucking insect issue, maybe whiteflies, maybe something else, scan the leaves closely with magnification to find perhaps mites. That pepper has a soil problem, not able to tell if too wet or too dry, but lack of yellowing leans toward too dry, in addition to the sucking insect. Critter at first guess was maybe minute pirate bug/~ family, but not sure that's right & Hemiptera always give me trouble. Surely rhizo can pick me up if she is reading my replies these days. One thing I note when we grow lettuce and greens in winter inside, is that the windows block UV light and any soil fungi present (even after sterilizing , so maybe on seed) proliferate wildly and hard to bring lettuce to head or maturity because the fungi win. Kid likes the garden inside in winter so we do it, but not easy at all for two parents with hort degrees.

Back of leaf picture here This post was edited by ash1970 on Fri, Jun 6, 14 at 15:40

I could have answered that in a heartbeat. They are a constant spring enemy of mine. Took me forever to find out what is was. Congrats on your googling! You have to grab them quick and keep them from flying off, which they do well :) I just smack them silly in my palm.....problem solved. CECIL