Determining some biological parameters of Aenasius arizonensis (Girault) (Hymenoptera: Encyrtidae) on cotton mealybug and the rate of parasitism in field conditions

The results showed that pre-oviposition, oviposition and post-oviposition periods of A. arizonensis were calculated as 1.5, 26, and 3.1 days, respectively. In addition, total mean longevity was determined as 31 days for female and 18 days for male individuals. Moreover, total mean fecundity and daily mean fecundity were also found as 83 mealybugs/female, and 4.1 mealybugs/female/day, respectively. The intrinsic rate of increase (r), net reproduction rate (R0), finite rate of increase (λ), gross reproductive rate (GRR), and mean generation time (T) were found 0.135, 41.25, 1.144, 60.90, and 27.57, respectively.