I used this Forbid 4F on Tropical/Cajun Hibiscus Plants inside greenhouses for a very, very light infestation of spider mites (just saw a couple of spider mites on a couple of leaves of a few plants) - no visible damage at all to leaves. Forbid 4F did wipe out the spider mites for a couple months. However, within one month of using it, all tropical hibiscus were 1/2 defoliated with leaves having a burned black spots appearance, with some plants losing all leaves, and several deaths from this pesticide. And of course all buds and seed pods of all plants fell off too. But it did solve the issue for awhile.
I need to add that I used Forbid 4F also on some regular garden hibiscus plants and just a few leaves fell off (burned appearance). So, on typical hibiscus the usage of this could be acceptable.