Each year, with the help of numerous partners across thirteen states and Mexico, RiversEdge West produces an annual distribution map that notes the presence and absence of Diorhabda spp. from sampling sites across the west. The links below contain all archived tamarisk beetle maps spanning over a decade.
These data in no way represent all locations where the tamarisk beetle may exist, but give a broad perspective of beetle establishment and dispersal, providing land managers with information that may help with their integrated pest management plans, restoration strategies, and funding opportunities.
If you would like to track the tamarisk beetle and to aid in data collection in North America, please visit our Applied Science page.
2023 Tamarisk Beetle Distribution Map
2022 Tamarisk Beetle Distribution Map
2021 Tamarisk Beetle Distribution Map
2021 Interactive ArcGIS Online Beetle Data Map
2020 Tamarisk Beetle Distribution Map
2019 Tamarisk Beetle Distribution Summary
2018 Tamarisk Beetle Distribution Map and 2018 Summary
2017 Tamarisk Beetle Interactive Map, Annual Distribution Map, and 2017 Summary
2016 Tamarisk Beetle Distribution Map and 2016 Summary
2015 Tamarisk Beetle Distribution Map
2014 Tamarisk Leaf Beetle Distribution Map
2014 Regional Distribution Maps
2014 New Mexico Tamarisk Beetle Distribution Map
2014 Arkansas Basin Tamarisk Beetle Distribution Map
2014 Colorado River Basin Tamarisk Beetle Distribution Map
2014 Colorado River Basin Tamarisk Beetle Presence/Absence
2013 Tamarisk Leaf Beetle Distribution Map
2012 Tamarisk Leaf Beetle Distribution Map
2011 Tamarisk Leaf Beetle Distribution Map
2010 Tamarisk Leaf Beetle Distribution Map
2009 Tamarisk Leaf Beetle Distribution Map