Thats exactly why I stopped using oil type products on plants like neem oil. They would clog the stomata and inflict that exact kind of damage on the plants. Crazy if that was heat damage. I got clones last year from Sonoma, CA and they were 4' and came directly to vegas under 130°+ in direct sun. Well it was only one plant right? Plenty more im sure you can plant while this plant recoups!