Paclobutrazol Useage Paclobutrazol is used on fruit trees to inhibit vegetative growth and to improve fruit set; on pot-grown ornamentals and flower crops (e.g. chrysanthemums, begonias, freesias, poinsettias and bulbs) to inhibit growth; on riceto increase tillering, reduce lodging and increase yield; on turfto retard growth; and on grass seed crops and oilseed rape to reduce height and prevent lodging. To be applied as a foliar spray, as a soil drench, or by trunk injection. Has some fungicidal activity against mildew and rusts. Rates of application vary widely, depending on area of use, application method, application timing, size of crop, and cultivation method.
Paclobutrazol Phytotoxicity Non-phytotoxic, though it intensifies greening. Some spotting has been noted on periwinkle foliage at higher temperatures.
