Fig. 9From: Two decades of epidemiological surveillance of the pine wood nematode in France reveal its absence despite suitable conditions for its establishmentAnnual risk maps of PWD expression for metropolitan France from 2000 to 2019 according to the mean annual temperature (MAT) and mean summer temperature (MST). The construction of these maps was based on the work of Gruffudd et al. (2016) (see the Section 2 for further information)Back to article page