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Example electrical penetration graph recordings illustrating feeding activities of Diaphorina citri adults on the weed species during 18 h recordings: (A) Mexican primrose, (B) Spanish needle, (C) Dogfennel, and a preferred host (D) Citrus macrophylla. Horizontal black lines indicate xylem feeding (G) and dashed black lines indicate phloem feeding (E2). Black horizontal scale bar shows 1 h.
