ProGibb® SG is a gibberellic acid (GA) formulation (40% GA). Gibberellic acid is a plant growth regulator that is widely used in horticulture and has also been trialled on pastures.
There is a large body of science about gibberellic acid and ProGibb® SG has been tested on New Zealand pastures. When applied to pasture, ProGibb stimulates growth through reserve mobilisation and leaf and stem elongation. Grasses, clovers and weeds all respond.