Ms Davidson has developed her career to improving Australian viticulture. Economic sustainability requires an understanding of soil, water, salinity, nutrition, grape selection, planting and harvesting. The market demand for grape varieties has to be within budgeted costs. She is well known for her objective reporting on potential of proposed plantings. She has achieved eminence in Australian viticulture with input over 200 of the 7000 vineyards. She supports her professional; association with frequent publications and has authored a book on viticulture. She has planted vineyards in Malaysia and the Philippines, and has a strong consultancy in South Africa.