Biodiversity refers to the broad mix of species that occur in any given area and can benefit growers in several ways. Vegetation helps to clean air and water, and regulate the local climate. Fungi, worms and bacteria help break down plant material to make fertile and well-structured soil. They are crucial for cycling of nutrients within soil into forms that are available to crops. Many plants depend upon insects to pollinate them, and birds and insects to keep pests away or to keep their numbers under control. Native vegetation along waterways traps contaminants before they can reach the water, strengthens stream banks to reduce erosion, gives shade and food inputs to in-stream life, and provides habitat (homes) for wildlife, insects and other organisms. Vegetation provides shade, shelter, noise barriers and privacy. The use of native vegetation as wind breaks can also reduce moisture loss through evaporation, be a tool to manage salinity, and increase the distribution uniformity of irrigation. Maintaining native vegetation contributes to the unique character of the Australian landscape and the reputation of the horticultural industry, as well as a special part of the farm for family recreation and sense of place. Biodiversity on farm can help to combat pest and disease incursions by limiting available habitat for invading species and controlling their numbers. Biodiversity can increase system resilience to major problems such as high winds and flooding since deep-rooted native vegetation slows both wind and water and can help protect against erosion.