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Table 8 Developmental parameters (mean ± SE) of A. ervi females parasitizing different age groups of M. persicae

From: Performance of the parasitoid species Aphelinus asychis Walker (Hymenoptera: Aphelinidae), Aphidius ervi (Haliday) (Hymenoptera: Braconidae) and Diaeretiella rapae (McIntosh) (Hymenoptera: Braconidae), using Myzus persicae (Sulzer) (Hemiptera: Aphididae) as host

Aphid age groups A. ervi
Oviposition period (days) Post oviposition period (days) Daily eggs laid/female Total fecundity (eggs/female)
1–2 days 10.00 ± 1.4 (8–13) 1.20 ± 0.45 (1–2) 4.28 ± 1.53 (4.1–6.46) 49.00 ± 2.99 (43–55)
4–5 days 7.00 ± 1.01 (5–9) 1.10 ± 0.23 (1–2) 7.06 ± 3.26 (6.38–7.67) 50.00 ± 2.88 (44–57)
t value 4.47* 4.10* 2.20*
p value < 0.00001 < 0.00001 < 0.00001
  1. Figures in parentheses represent the range
  2. All values are mean of 10 observations
  3. *Significant at p < 0.05 and df = 18