Q.Hibiscus bugs?
I have little egg looking things on the underside of my leaves and my new buds have died without blooming. I’m thinking some type of bug. How can I get rid of them and make my plant healthy again? My leaves also have yellow/brown spots on them.
Likely Mealybugs, and they can be treated with Neem OIl.
Treat the plant weekly.
Here are a few links for you with more information.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-sticky-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm