Main Specification

Paclobutrazol 95%TC,10%WP,15%WP,25%SC

WINER Paclobutrazol Description

Paclobutrazol (CAS No. 76738-62-0) is a plant growth regulator, it produces more compact plants and enhances flowering and fruiting.

Paclobutrazol Biochemistry
Inhibits gibberellin biosynthesis by inhibition of the conversion of ent-kaurene to ent-kaurenoic acid, and inhibits sterol biosynthesis by inhibition of demethylation; hence inhibits the rate of cell division.

Paclobutrazol Mode of action
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 rice to increase tillering, reduce lodging and increase yield; on turf to 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 Applications
Control of golden apple snail (Pomacea canaliculata) in rice, at 0.25–1.5 kg/ha. Control of schistosomiasis and fascioliasis in man by killing fresh-water snails which act as intermediate hosts. Also used for veterinary control of tapeworm infestations.

Paclobutrazol Phytotoxicity
Non-phytotoxic, though it intensifies greening. Some spotting has been noted on periwinkle foliage at higher temperatures.