After working with a Giant among men, the late Dr Harry Goodman, and in memory of Doctor Harry, we created the brand name "Plant Doctor" and made the decision to exit the World of toxic Chemicals. That decision was easy after a chemical overspray in 1985. Today we primarily use Mother Earth's Natural Resources e.g. Plants (botanical extracts) for developing unique Earth Friendly Fertilisers, e.g. our Flag Ship brand being "Champion Fertiliser" (Plant Based, with 4.5%Nitrogen) and we have the worlds highest Natural Nitrogen Peruvian SeaBird Guano PSG w/16% nitrogen Google Wikipedia-Guano ...Soil Wetters (Plant based Non Petro-Chemical) carriers e.g. VolcaMin (the Mineral from the Volcano, Zeolite) incl. Rock Dust, Australian Rock Phosphate, clays, incl. Kaolinite, Neem Oil, DE i.e. tiny skeletons from Plankton algae We are the Exclusive Importers for Perma-Guard...Just google "Fossil Shell Flour" and see what all the fuss is about. We believe in Sustainability and further develop these Natural resources for Insect control and Plant Protection incl. natural herbicide technologies. Finally to most of our products we blend or coat 30 beneficial microbes incl. Trichoderma, bacillus and VAM. We incorporate these Beneficials to our Reef n River Safe Fertiliser that last from 3-4mths, 5-6mths, 8-9mths or 12months release...all the above is just a small part of what we have and we are always looking for new resellers/Distributors esp. Overseas and I haven't even explained our Animal Feed Supplement products yet.