The Tropical Fruit Forum

iv organics is pretty much lime repackaged with a vial of oil - peppermint, etc. you can make your own and save money. Pretty much by some garden lime and mix with water. But this person in australia has a recipe they use on figs - 

George's recipe for white wash
George uses a ratio of 3 cups of lime to 1 cup of copper sulphate.

He suggests mixing the three cups of lime with two litres of water, and stir to make a paste; and mix the one cup of copper sulphate with a litre of water and stir to make a paste. This mixture should resemble quite a thick paste, finally mix these together and paint on the tree.