Plant material
A total of 100 emerged O. crenata shoots, comprising 10 different plants from 10 populations, were collected from agricultural fields in Northern Algeria during spring of 2015. The details for each population, including collection site name, GPS coordinates, and host are displayed in Table 1 and Figure 1. The sampling was conducted with the objective of capturing the geographic range of O. crenata in Algeria, as well as host diversity. To this end, six populations were collected from faba bean hosts that represent the predominantly affected crop, and four populations were taken from other host species, carrot, chickpea, pea, and tomato.