bugs? or food???

What u think is wrong

i would first hand say bugs have you checked under the leaves for white spec's usually eggs indication is this outdoor grow?

It's hard to tell from the pic's what exactly is going on but i'd say it's a food problem. First of all i thought over fertilization but i'm leaning more towards some sort of nutrient lock out. In other words for whatever reason your plants are not getting the nutes it needs.

Yes it is outdoor