Foresters are responsible for managing the use of forests, ensuring there is a balance between conservation, recreational and commercial uses. They work in both natural forests and timber plantations, planning where and when to plant and harvest trees. As trees grow, foresters monitor their development, marking specific trees for harvesting to avoid overcrowding, and checking for signs of disease. An important part of a forester's work is managing the risk of bushfire, which in Western Australia may include arranging for periodic back burning to reduce the amount of flammable material on the forest floor. Foresters are also increasingly working with farmers to address issues of land degradation and salinity.