SHe is growing in 15 gal grow bags, fertilizers 2 times a week, uses Promix BX if that helps.

Looks to me like Tomato Spotted Wilt Virus.

Rodney

Agreed. That's TSWV.

Your friend should remove that plant. Plants do not recover from viruses, and that plant could serve as a reservoir to infect other plants.

She should examine her plants carefully to see whether there are thrips still present (thrips are the vector). If so, she should treat her other plants.

Thanks so much. I will tell her to remove the plant. If she finds thrips, what would you suggest she treat the other plants with?

If she wants a relatively organic option, spinosad is listed as killing thrips. She should spray every surface of the plants, including flowers/buds, the undersides of leaves, etc. Repeat 3 days later to kill the thrips that were eggs for the first spray or managed to hide. I would repeat again a few days later.

Spinosad is a bit more broad-spectrum than most biologicals, so she should do it in the evening after the bees are finished.

Thanks so much gorbelly.