I have a group of pepper and eggplant plants in pots/containers I've had growing now since mid-April. They have been doing fine until the last few days all of sudden I'm seeing brown edges on leaves and new growth or yellowing at leave bases like they've been frost damaged or burned somehow? I'm in Indianapolis which has has some chilly weather but I've either taken them in or had them covered each time we had frost warnings. Stranger still is there are healthy peppers growing in same soil, same pots, planted same time looking fine. Ideas? help or opinions welcome.

Including pics of affected plants and a healthy plant too. FYI soil level may look low but the pots are deep and they have a good number of quarts of soil in there, last the peppers are a mix of Jalapeno, Orange Bell, Giant Marconi and such.

Looks like the sickly plants are in brown pots and the healthy one is in a green pot. I know, sounds crazy and probably is and you probably have some healthy plants in brown pots and sickly ones in green pots, too. Just something I noticed.

If they were doing fine and suddenly went down hill...can you think of anything that has changed? Different fertilizer? Different watering method? New plants brought in? Anything?

How do you monitor the soil moisture levels?

You might have Early Blight. Cool weather plus wet plants can lead to blight. Plants of the nightshade family are especially susceptible to blight. That includes peppers, tomatoes, potatoes and eggplants.

If it is blight you should destroy the sick ones. Treat the the rest with copper solution. Make sure they are not crowded together. Try not to touch the plants if you do wear disposable gloves.

Avoid watering from the top, wet leaves lead to disease. Always bottom water your plants.

Good luck

not sure what bottom watering is but I add water to the soil don't water over the plant. But we've had rain lately or if I need to maintenance water during summer I use a sprinkler.

Bottom watering is when you add water to the dish on the bottom of a plant pot or put the plant container in a container of water so it sucks the water up into the plant container. Pouring water on the soil can be risky, the dirt, which contains the fungus, can splash on the lower leaves and infect the plant.

We're they recently moved from small seed cells to these pots? And are the new pots much larger? I'm asking because I think it's overwatering. Not in a terminal sense, just an adjustment phase from a very small fast drying pot to a larger pot who's center will stay much wetter much longer.