Functional responses to prey density ofEphedrus cerasicola [Hym.: Aphidiidae], an aphidiid parasitoid ofMyzus persicae [Hom.: Aphididae]

@article{Hofsvang1983FunctionalRT,
  title={Functional responses to prey density ofEphedrus cerasicola [Hym.: Aphidiidae], an aphidiid parasitoid ofMyzus persicae [Hom.: Aphididae]},
  author={Trond Hofsvang and Eline Benestad H{\aa}gvar},
  journal={Entomophaga},
  year={1983},
  volume={28},
  pages={317-324}
}
The functional responses of the parasitoidEphedrus cerasicola Starý parasitizingMyzus persicae (Sulzer) on a paprika plant, were studied for single females at different host densities (1 to 120 aphids per 1.8 dm3) during 3 different time periods (1 hr, 6 hrs, 24 hrs) at 21 °C.The response during 1 hr was curvilinear and is described by the random parasite equation according toRogers (1972). A maximum of 5–6 aphids could be parasitized during 1 hr. After 6 hrs, the response was linear, although… 

Superparasitism and host discrimination byEphedrus cerasicola [Hym.: Aphidiidae], an aphidiid parasitoid ofMyzus persicae [Hom.: Aphididae]

A non-random larval distribution indicated that E. cerasicola discriminates between unparasitized and parasitized aphids, but probably not between aphids with different numbers of parasitoid eggs.

Foraging Behavior ofPraon volucre(Hymenoptera: Braconidae) a Parasitoid ofSitobion avenae(Hemiptera: Aphididae) on Wheat

The results suggested that P. voluvre has the potential to be a biocontrol agent of S. avenae, however, evaluation of foraging behavior warrants further investigation under field conditions.

Oviposition behaviour ofEphedrus cerasicola [Hym.: Aphidiidae] parasitizing different instars of its aphid host

The parasitoidEphedrus cerasicola Starý oviposited in all 4 nymphal instars and in newly moulted adults ofMyzus persicae (Sulzer). The different host categories were offered with no choice. The

Foraging by the aphid parasitoid Ephedrus cerasicola for patchily distributed hosts

The percentage parasitism, based on mummies on the plants, was rather density independent after a slight peak on plants with about 50 aphids, and no superparasitism was found by dissection of aphids.

Determining the Functional Response and Mutual Interference of Utetes anastrephae (Hymenoptera: Braconidae) on Anastrepha obliqua (Diptera: Tephritidae) Larvae for Mass Rearing Purposes

Strategies for optimizing the mass rearing of this parasitoid species are outlined and superparasitism at high densities of foraging females had a negative effect on adult emergence, was associated with a female-biased sex ratio, and had no effect on survival or flight ability parameters.

Generation-Dependent Functional and Numerical Responses of a Naturally Fungus-Infected Colony of Habrobracon hebetor (Hymenoptera: Braconidae) Reared on Ephestia kuehniella (Lepidoptera: Pyralidae) in Iran

G2uninf and, among infected generations, Ginf were the best generations for practical utilization in inundative release programs and the most plausible parameters of functional response of infected generations were observed in Ginf.

Behavioral and Ovipositional Response of Diaeretiella rapae (Hymenoptera: Braconidae) to Rhopalosiphum padi and Brevicoryne brassicae in Winter Wheat and Winter Canola

Results suggest that D. rapae faces challenges to maintain significant populations in the wheat/canola landscape of the Southern Great Plains, especially in years when canola is not locally present.

Functional response of Trichogramma chilonis to Galleria mellonella and Chilo sacchariphagus eggs

The low rate of detected parasitism at low host densities with G. mellonella eggs may be due to incomplete pupal development due to superparasitism rather than lack of parasitism, thus explaining the type III functional response.

Behaviour of the parasitoid Lysiphlebia mirzai Shuja‐Uddin (Hym., Aphidiidae) at varying host densities

The paper deals with the behaviour of Lysiphlebia mirzai, an aphidiid parasitoid of the pearl‐millet aphid Rhopalosiphum maidis, at varying host densities. By increasing the host density on the leaf

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A non-random larval distribution indicated that E. cerasicola discriminates between unparasitized and parasitized aphids, but probably not between aphids with different numbers of parasitoid eggs.

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