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Mean values ± standard errors for nonphloem EPG parameters A to J of B. tabaci biotype B and Q whiteflies feeding on TYLCV-infected and virus-free tomato plants (experiment 1). Parameter letters correspond to parameter letters in Table 1. White bars, biotype B feeding on virus-free plant; white striped bars, biotype B feeding on TYLCV-infected plant; gray bars, biotype Q feeding on virus-free plant; gray striped bars, biotype Q feeding on TYLCV-infected plant.
