Hi, I have a hibiscus and it was doing great. It sits outside on my balcony, so the amount of sun it receives hasn't changed. I water it every 3-4 days. In the last 2-3 weeks I have noticed that all the leaves are falling off. When I look at the leaves I can see tiny whitish/yellowish bugs on the front and backs of the leaves and some of the leaves that have turned yellow I can see red bugs. When I looked at them closely I can see tiny black legs (maybe 6). The red bugs are no bigger than 1-2mm long. My once lushious looking plant now looks on the brink of death. I really want to keep the plant alive. It has the most amazing pink flowers.

Thank you for any help.