Spray foliage thoroughly when insects are first noticed or if insects reappear. Spray underneath the leaves to kill pests which may be hiding out of sight.
For hibiscus flower beetle spray buds and flowers as needed.
For longtailed mealy bug apply 3 sprays 2 weeks apart
For psyllids spray at first sign and then a week later.
For soft scales spray in late spring or when small scales are first seen. apply 3 sprays 2 weeks apart.
For best results apray in the morning when there is little or no wind and little direct heat from the sun. Avoid spraying blooms or flowers in full sun as slight petal marking may occur.
Also for Azalea lace bug. Greenhouse thrips. Sap sucking bugs incl bronze orange bug. Green peach aphid.