Functional response to host density by the egg parasiteTrichogramma pretiosum

@article{Kfir2006FunctionalRT,
  title={Functional response to host density by the egg parasiteTrichogramma pretiosum},
  author={Rami Kfir},
  journal={Entomophaga},
  year={2006},
  volume={28},
  pages={345-353}
}
The effect of host density on parasitism byTrichogramma pretiosum Riley was studied by exposing groups of 150, 300, 600 or 1200 eggs of potato tuber moth to 2, 4 or 8 female parasites per group. The parasite exhibited a type 2 functional response. As host density increasedT. pretiosum parasitised more hosts, but at a decreasing rate. The attack coefficient (a′) decreased as parasite density increased, whereas the handling time (T h ) remained almost constant. The search rate (a) decreased with… CONTINUE READING