Fig. 1From: Population genetics of the cereal cyst nematode Heterodera avenae reveal geographical segregation and host adaptationDistribution of cereal cyst nematodes (Heterodera spp.). a Distribution of all samples collected. b Distribution of H. avenae. c Distribution of H. filipjevi. d Provinces in which H. avenae occurred in 1989. e Provinces in which H. avenae occurred in 1989–2010. f Provinces in which H. avenae occurred in 2010–2022Back to article page