Skip to main content

Table 2 Biological parameters of E. formosa on third and fourth instars of T. vaporariorum

From: Relative preference and demographic parameters of Encarsia formosa Gahan against Trialeurodes vaporariorum (Westwood)

Parameter Third instar Fourth instar
Estimate ± SE Range (days) Estimate ± SE Range (days)
Oviposition to mummification period (days) 11±0.15 10-12 8.5±0.17 8-9
Mummification to adult emergence period (days) 7.8±0.18 7-9 7.6±0.16 7-9
Total developmental period (days) 18.8±0.2 18-20 16.2±0.20 15-18
Adult longevity (days) 8.3±0.15 5-10 8.8±0.19 6-10
Pre-oviposition period (days) 1.2±0.07 1-2 1.2±0.07 1-2
Oviposition period (days) 6.4±0.12 4-7 6.7±0.09 5-8
Post-oviposition period (days) 1.0±0.0 1 1.0±0.0 1