My Hibiscus Has Little Holes in the Leaves.

Question

The stems have little bumps on them and I found a colorful bug on it, not sure if the found bug is the cause. I live in tropical environment.

Answer 1

The bumps are scale insects, which neem oil should help with, regardless of the insect pest (as there could be another culprit feeding on the leaves). Here is more iinformation: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm