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Table 7 Developmental parameters (mean ± SE) of A. asychis 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. asychis
Oviposition period (days) Post oviposition period (days) Daily eggs laid/female Total fecundity (eggs/female) Daily host/female Total host feeding (aphids/female)
1–2 days 19.00 ± 0.45 (19–20) 6.80 ± 0.66 (6–8) 7.00 ± 2.87 (2.8–11) 138.60 ± 7.40 (122–152) 4.0 ± 1.53 89.2
4–5 days 15.00 ± 0.45 (15–16) 5.40 ± 0.69 (4–7) 3.20 ± 1.43 (1.8–6.6) 49.80 ± 3.53 (39–55) 2.3 ± 0.65 43.4
t value 19.88* 3.21* 3.80* 4.41*
p value < 0.00001 < 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