Since the sun is how the plant gets most of it's food and health, and the Sun Blocker is mostly to block that, I'd say to trim them all over as lightly but evenly as possible, so it might give the rest of the plant not sprayed a chance to boost the plants immune system. I"m afraid if you spray them, you'll spread the oil/cream/silicone to other parts and the whole plant die. I'd also give them a drink of Miracle Grow to encourage replacement leaves/buds as quickly as possible and help it's bug resistance some.
Let us know what happens and what you chose to do about this unusual thing that happened, o.k.? Good luck and God bless your flower garden and you. : )
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