and the town was established in its existing site prior to World War I. Mundubbera Post Office opened by 1 July 1912 (a receiving office had been open from 1911). Mundubbera State School opened on 7 November 1913. The Mungar Junction to Monto railway line serviced the town from 1914. A library was established in Mundubbera in December 1933 in the School of Arts. The Mundubbera War Memorial commemorating those from the district who served in World War I was unveiled by the Member of the Queensland Legislative Assembly for Brisbane and Minister for Works, Mick Kirwan, on 27 May 1928. Henry Zipf planted the first citrus orchards in 1933 and established Mundubbera as a major producer of export citrus. The recent (2006) drought and the after effects of the 2004 Citrus canker outbreak in Emerald has had a dampening effect of the citrus industry in the area. The Mundubbera Vietnam Veterans Memorial commemorates those who served in the Vietnam War. It is located beside the RSL Memorial Hall. On 11 November 1995, members of the RSL planted a Lone Pine war memorial tree from a seedling whose lineage links back to Gallipoli. At the , the town had a population of 1,053. In the , Mundubbera had a population of 1,261 people. Heritage listings Mundubbera has a number of heritage-listed sites, including: 26 Bowen Road: Mundubbera Butter Factory (also known as Maryborough Co-operative Dairy Association Butter Factory) Kinchela Street: Mundubbera Cemetery Leichhardt Street: O'Regan Memorial Gates Lyons Street: former Mundubbera Shire Hall and Bloxsome Memorial Building (also known as Mundubbera Library) intersection of Lyons and Bouverie Streets: Mundubbera War Memorial Seligmann Avenue: Jones Weir Economy The economy Mundubbera is predominantly agriculture and forestry. The major agricultural activities in Mundubbera are cattle grazing and, in the irrigated areas, fruit growing. Fruit grown in the Mundubbera area includes citrus, mangoes, avocadoes and stone fruit. In addition, Mundubbera is Queensland's largest producer of table grapes. During the fruit picking seasons Mundubbera can double in size as many itinerant workers and backpackers from around the world come to the town looking for work on the orchards. Seasonal workers are accommodated in two large caravan parks in Mundubbera itself or in many on-site parks. Since 2010, workers from Tonga and Papua New Guinea have been supported through the Pacific Seasonal Worker Pilot Scheme. The success of this endeavour has meant that the Seasonal Worker