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

@article{Hofsvang1986OvipositionBO,
  title={Oviposition behaviour ofEphedrus cerasicola [Hym.: Aphidiidae] parasitizing different instars of its aphid host},
  author={Trond Hofsvang and Eline Benestad H{\aa}gvar},
  journal={Entomophaga},
  year={1986},
  volume={31},
  pages={261-267}
}
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 duration of an oviposition increased with the age of nymphs, being about 13, 18, 21, 22, and 17 s from 1 st instars to adults, respectively. Observations of number of stabbing attacks prior to oviposition, percent of the encounters not resulting in oviposition, time from first encounter to oviposition… 

Parasitism byEphedrus cerasicola [Hym.: Aphidiidae] developing in different stages ofMyzus persicae [Hom.: Aphididae]

Development and reproduction of unparasitized and parasitized aphids at 21°C were compared and host age at parasitization had a slight effect on the parasitoid's developmental rate and had no effect on egg or pupal survival, or on the sex ratio of the emerging parasitoids.

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.

Life table of Aphelinus paramali Zehavi & Rosen, 1989 (Hymenoptera: Aphelinidae), a parasite of the melon aphid, Aphis gossypii Glover, 1877 (Hemiptera, Aphididae)

As density of host increased, the number of parasitized aphid also increased till a certain density level, and then this level reached a stabile parasitism and showed type II, and the relationship between A. gossypii and parasitoid was investigated.

Influence of host behavior and host size on the success of oviposition ofCotesia urabae andDolichogenidea eucalypti (Hymenoptera: Braconidae)

  • G. Allen
  • Biology
    Journal of Insect Behavior
  • 2005
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The effect of choice and no-choice access on host (Aphis fabae) instars preference, in different ages and sizes of Lysiphlebus fabarum (Hymenoptera: Braconidae: Aphidiinae)

Host instar preference of the thelytokous strain of Lysiphlebus fabarum was studied in relation to progeny performance in choice and no-choice experiments, and offsprings emerging from hosts that were parasitized as the first instar stage were smaller and took longer to develop.

Collective Defense of Aphis nerii and Uroleucon hypochoeridis (Homoptera, Aphididae) against Natural Enemies

Obs observations of natural aphid colonies revealed that a collective twitching and kicking response (CTKR) was frequently evoked during oviposition attempts of the parasitoid wasp Aphidius colemani and during attacks of aphidophagous larvae, suggesting that visual signals in combination with twitching-related substrate vibrations may play an important role in synchronising defense among members of a colony.

Recognition of heterospecific parasitism: Competition between Aphidiid (Aphidius ervi) and Aphelinid (Aphelinus asychis) parasitoids of Aphids (Hymenoptera: Aphidiidae; Aphelinidae)

It is suggested that competition for host resources incurs a cost, for the winner in terms of reduced size or increased development time and for the loser in Terms of lost progeny and searching time and that heterospecific host discrimination can be functional.

Host stage preference, functional response and mutual interference of Aphidius matricariae (Hym.: Braconidae: Aphidiinae) on Aphis fabae (Hom.: Aphididae)

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Comparative studies on populations of Pauesia juniperorum (Hymenoptera: Braconidae), a biological control agent for Cinara cupressivora (Hemiptera: Aphididae)

Pauesia juniperorum (Starý), a solitary endoparasitoid which attacks several Cinara spp.

Effect of Native and Non-native Hosts on the Biology of Acerophagus papayae Noyes and Schauff, the Introduced Parasitoid of Paracoccus marginatus Williams and Granara De Willink

The results showed significant differences in bioecology of parasitoid on their natal host compared with the non-natal hosts and parasitoids showed a similar high fitness on both natal and non natal hosts.

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