Correction: Bioactivity-guided isolation of rosmarinic acid as the principle bioactive compound from the butanol extract of Isodon rugosus against the pea aphid, Acyrthosiphon pisum

In the title of this article, the word “principle” should be “principal.” The correct title is: Bioactivity-guided isolation of rosmarinic acid as the principal bioactive compound from the butanol extract of Isodon rugosus against the pea aphid, Acyrthosiphon pisum. The correct citation is: Khan S, Taning CNT, Bonneure E, Mangelinckx S, Smagghe G, Ahmad R, et al. (2019) Bioactivity-guided isolation of rosmarinic acid as the principal bioactive compound from the butanol extract of Isodon rugosus against the pea aphid, Acyrthosiphon pisum. PLoS ONE 14(6): e0215048. https://doi.org/10.1371/journal.pone.0215048