Geez, sorry to hear that. I'd pull it out. I wouldn't want to eat an herb that had been exposed to a strong dose of chemicals.

Yep, they're gonners. Luckily Rosemary is cheap and grows fast.

I had some plants that went through that--not rosemary though. They appeared to have been cooked under the tent. I don't think the pesticide killed them.

Mine came back. I would not pull yours yet. If you can live with their current ugliness, wait and see if they put out new leaves.

I assume these are nice old hedge-type rosemary and not really for eating? and not something quickly replaced?