You are worried she is going to challenge you on the bug bites and claim you are a bad dad for not preventing them?

Validate. "Yes, bugs were bad. D got bites and I got many as well. It was crazy with bugs. Next time maybe bugs won't be as bad..."

Nothing you can do about nature and even the best bug remedies are not perfect, but you can't hide your D from life experiences because of bugs...

Just my thoughts...