Fig 4.

Mean values ± standard errors for nonphloem EPG parameters A to J of viruliferous and uninfected B. tabaci biotype B and Q whiteflies feeding on virus-free tomato plants (experiment 2). Parameter letters correspond to parameter letters in Table 3. White bars, uninfected biotype B feeding on virus-free plant; white striped bars, viruliferous biotype B feeding on virus-free plant; gray bars, uninfected biotype Q feeding on virus-free plant; gray striped bars, viruliferous biotype Q feeding on virus-free plant.