My hibiscus is dropping leaves; they are turning yelllow. I am not overwatering.?

I have seen some bugs but sprayed. The plant is in bright light but not in direct sunshine.

My hibiscus is dropping leaves; they are turning yelllow. I am not overwatering.?
well first thing you need to do is to take your hibiscus plant outside and spray it really good with your garden hose. try to get rid of as many of the bugs as possible. let it dry out in the sun for about an hour and then spray with a permethrin base product.( you can obtain it at your local nursery). number two hibiscus love the full beating down sun, but the also require more water and they love to have their leaves(foliage) watered as well. they love heat and high moisture. they must also be fed more frequently than other plants . it is good to switch once each week between a high phosphorous fertilizer like 15-30-15 and a acid base fertilizer,( like the kind used for azaleas and rhododendrons) using a systemic insecticide to keep insects to a minimum is also a good idea.
Reply:I had the same problem. My Hibiscus is in a pot on my back porch and I noticed that when I put the pot up above the concrete the leaves stopped yellowing and dropping. It could also be in a bit of shock from the bug spray.
Reply:The Hibiscus needs to be fed. Also hibiscus needs full sun. Pull of the yellow leaves and feed with Miracle Grow liquid fertilizer. 1 heaping tablespoonful to one gallon of water. Fertilize and watch it thrive. Fertilize weekly and you will have blooms and blooms. I have a yellow hibiscus and I follow my own advice and it just is gorgeous.
Reply:It could be due to various reasons.Check wether the local climate is responsible.If so don't worry Hibiscus are fast growing plants.If not I'd advise you to change the entire planting medium,clean-wash and spray antifungal garden products to the roots.It can also be due to lack of trace minerals or pests damaging the roots,so check every possibility as possible.Happy Gardening.