Yellow spots on Hibiscus leaves

Caledonia, OH(Zone 5a)

The thing is I just had a pest problem, I had spider mites and white flies and I bought Schultz insect spray and I think maybe I used too much. It doesn't look good and I'm sorry but I don't have a picture of it. The good news all the insects are dead, But I end up with yellow spots and leaves dieing.

Dublin, CA(Zone 9a)

It could just be damage that was caused by the insects. Even after you kill them, the parts of the leaves that they had chewed on aren't going to go back to being green, and if a leaf was damaged enough it can die and fall off. Hibiscus are also a bit temperamental sometimes--if you stress them too much by changing their environment or doing anything else that they don't like (spraying them with lots of stuff could be one of those things!) they tend to respond by some of the leaves turning yellow and falling off. In either case, if you've gotten rid of the bugs and you're watering properly, they should recover and put out new leaves, if not now then in the spring.

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