South Florida pepper plant problem. Are they getting too much sun?

I have 4 pepper plants growing. They have been in the ground for about two weeks. Up until today 3 out of 4 were ok. I am watering at night after the sun goes down and in the morning early. The two that are failing have what looks like burned leaves. The one is almost gone. Am I overwatering? Is it too much sun? They get full sun early and into the afternoon. The jalapeno is thriving but the bell's are the effected ones. Any ideas?

South Florida pepper plant problem. Are they getting too much sun?
peppers cant get too much sun. could be fertilizer burn. yes, too much water. try every other day in the morning.