Hey everybody

Well my big boy and better boy got blight after three days of nonstop rain. I covered them both with a special dust that stops blight. My big boy looks like its going to make it and is still very green. But my better boy looks terrible. Only the top looks green. I removed the worst of the branches but its still green with a yellow tint. Is blight something a plant can recover from? If I used foliar spray will that help it green up my plants again?