I am growing three Burpee bell pepper plants in the same box as three Anaheim plants. The plant pictured below is showing signs of some sort of distress whether it be disease or sabotage (neighbors are jealous). The leaves have begun to show yellow rings at numerous places on the top side of the leaf and the texture is warty for lack of a better term. The bottom of the leaf is not affected. The fruit has rough, wart-like skin and one of them had a hole in the top where an insect of some sort burrowed in. I am sure that the issue is not environmental (overwater, over-fert, too much/little sun) because the other plants are doing fine a mere 6 inches away. My question has three parts:

1. What disease,affliction, or pest is on this plant?

2. Is there a cure or should I just toss the plant?

3. Is it contageous and end up killing my whole pepper crop? (I have quite a few varieties including five ornamentals that I just got hooked on.)

Thanks for letting me pick you guys' brains.