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Table 2 EPG variables of different sexes of different treatments of Bemisia tabaci biotype Q

From: Changes in Bemisia tabaci feeding behaviors caused directly and indirectly by cucurbit chlorotic yellows virus

Variables Sex NVW vs. NVP 1 VW vs. NVP VW vs. VP
Non-phloem variables
 1. Duration of 1st probe (min) 1.41 ± 0.512a 1.16 ± 0.39a3 1.23 ± 0.08a*4
1.08 ± 0.21a 1.10 ± 0.20a 0.86 ± 0.13a
 2. Total number of C (#) 61.63 ± 8.67b 101.33 ± 12.48a 68.39 ± 10.18ab
59.79 ± 7.21b 100.44 ± 11.73a 72.89 ± 6.33ab*
 3. Total duration of C (min) 126.60 ± 11.80b 178.56 ± 21.90a 213.15 ± 13.21a
177.65 ± 13.06a* 184.63 ± 13.07a 189.43 ± 15.65a
 4. Total number of pd. (#) 9.74 ± 1.88b 21.56 ± 4.28a 17.67 ± 1.31ab
10.21 ± 2.44b 25.67 ± 5.44a 17.74 ± 2.78ab
 5. Time to 1st E from 1st probe (min) 224.56 ± 22.28ab 188.72 ± 20.42b 246.95 ± 6.50a
223.36 ± 24.63a 207.82 ± 25.64a 213.85 ± 19.11a
 6. Total number of probes before 1st E (#) 46.84 ± 6.49b 80.33 ± 10.66a 83.89 ± 3.94a**
48.74 ± 9.04a 70.78 ± 13.91a 58.11 ± 5.03a
Phloem variables
 7. Total duration of 1st E1 (min) 3.40 ± 1.34b 6.35 ± 1.49a 2.71 ± 0.39b
5.85 ± 1.70b 10.87 ± 3.70a 1.99 ± 0.50c
 8. Total number of E1 (#) 1.89 ± 0.26a 2.39 ± 0.49a 1.56 ± 0.12a
1.84 ± 0.34a 2.56 ± 0.44a 1.74 ± 0.25a
 9. Total duration of E1 (min) 5.35 ± 1.45ab 7.56 ± 1.41a 4.49 ± 0.70b
7.05 ± 1.61b 12.39 ± 3.63a 3.23 ± 0.93c
 10.Total number of E2 (#) 1.32 ± 0.11a 2.17 ± 0.44a 1.56 ± 0.12a
1.00 ± 0.11b 2.56 ± 0.44a 1.74 ± 0.25ab
 11. Total duration of E2 (min) 30.19 ± 12.04a 27.59 ± 7.02a 7.19 ± 0.71b
31.25 ± 8.85a 23.49 ± 7.32a 15.88 ± 5.90a*
 12. Total number of E1 after 1st E2 (#) 0.42 ± 0.16a* 1.06 ± 0.45a 1.00 ± 0.12a
0.11 ± 0.07b 1.56 ± 0.44a 0.68 ± 0.25ab
 13. Total duration of E1 after 1st E2 (min) 0.99 ± 0.54a 1.04 ± 0.47a 1.88 ± 0.33a
0.56 ± 0.45a 1.52 ± 0.84a 1.20 ± 0.75a
 14. Percentage of E (%)5 17.25 ± 5.17a 21.85 ± 5.32a 3.06 ± 0.42a
17.51 ± 4.44a 14.43 ± 3.98a 5.31 ± 1.85b
  1. 1The three treatments include: non-viruliferous B. tabaci whitefly feeding on non-viruliferous cucumber plants (NVW vs. NVP), viruliferous B. tabaci whitefly feeding on non-viruliferous cucumber plants (VW vs. NVP), and viruliferous B. tabaci whitefly feeding on viruliferous cucumber plants (VW vs. VP). 2Data are means ± SE. 3Letters immediately after the mean values represent the comparison of biotype Q on plants under different treatments. Letters after the mean values indicate statistically significant among treatments (Tukey test, P < 0.05). 4Asterisks * or ** indicate a statistically significant difference between biotype Q males and females on plants under the same treatments at P < 0.05 or P < 0.01. 5Percentage of E (%) = equals the percentage of total duration of E (E1+E2). EPG waveforms: C = pathway; pd = potential drop (intracellular puncture); E1 = phloem salivary secretion; E2 = phloem sap ingestion. E=E1 + E2