Gibberellic Acid is basically like steroid to human. Human body produces some steroid and the trees produce some Gibberellic Acid. I subblement Gibberellic acid to my Grape vines and stone fruit trees. I am getting an excellent results with it and I know how to use it. It must be just a trace and you provide lots of fertilizer in order for the plant to get bigger, stronger and produce large fruits. I use it on my trees when they are just getting out of dormancy where the buds are swelling and the flowers start to form. I am thinking to use it on my Citrus but When?, Citrus does go dormant. Is any one on Citrus board using it and if so when.