Keywords: Queensland State Archives 4492 Groundsel infestation after spray treatment c 1950.png en Groundsel infestation after spray treatment 1950 http //www archivessearch qld gov au/Image/DigitalImageDetails aspx ImageId 4492 Preferred citation Queensland State Archives Digital Image ID 4492 ID label 1269838 http //www archivessearch qld gov au/Search/AgencyDetails aspx AgencyID 1995 Lands Department Survey Office Cartographic Branch Photographic Section en Copyright expired Information field Decade 1950-1959 Information field Place en Queensland Information field Keywords en Noxious weeds Herbicides Weeds control Information field Material Type en Photographic material Information field Type en Image PD-Australia QSA media uploaded by User 99of9 Photographic material from the Queensland State Archives Queensland in the 1950s Invasive plant species in Australia Baccharis halimifolia Effects of herbicides |