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. 2017 May 15;12(5):e0177742. doi: 10.1371/journal.pone.0177742

Fig 1. Potato psyllid collection sites across the states of Washington and Idaho, United States of America.

Fig 1

Potato psyllids were collected from bittersweet nightshade patches (blue circles) or potato fields (yellow circles). See Table 1 and S1 Table for detailed information about each population.