Western Australian wool-growers are testing the use of satellite imagery to assist pasture management. Using CSIRO technology, the amount of 'greenness' measured by satellites across the state's south-west, is converted to biomass or 'food on offer' (FOO) and 'pasture growth rates' (PGR). By 2002, farmers will be able to download weekly or monthly images from the Internet, showing FOO and PGR for their whole farm or individual paddocks. Using the pasture measurements, growers can determine feed budgets for their sheep, aimed at maximising pasture use and improving wool value.