Screening powders are typically used in Mediterranean climates and flower and vegetable growing countries such as Spain, Greece and Turkey. However we see it more and more used in countries around the Equator to protect cut flowers in plastic greenhouses from heat and sun in hot seasons. This most economic type of shading agent available, helps you to: - reduce heat and create an optimum climate for growth - improve growth - improve yields - decrease disease problems especially root problems - improve the life expectancy of your plastic. Shadefix is advised for climates with sunshine and frequent rain fall. For dry climates with hardly any rain fall you can choose to use Whitefix as well.