Image Herbicide for St Augustine Grass and Centipede Grass RTS is only labeled for St Augustine and Centipede grasses. For zoysia we would recommend you may want to try the Image Kills Nutsedge Concentrate which is labeled for use on zoysia and other warm season lawns.
When treating for clover and Florida betony, you will get best results in the Fall. Per the Image product label, you should apply Image in mid to late October followed by a second application in mid to late February when treating Florida Betony. You may need multiple applications to control clovers, as well, when using atrazine. Clovers will not be actively growing in the Spring, either, so it is harder to control weeds with herbicides when they are not actively growing.