Host Density-Dependence of Discovery and Exploitation Rates of Egg Patches of Lobesia botrana (Lepidoptera: Tortricidae) and Ephestia kuehniella (Lepidoptera: Pyralidae) by the Parasitoid Trichogramma cacoeciae (Hymenoptera: Trichogrammatidae)

Barnay, O.; Pizzol, J.; Gertz, Claude; Kienlen, J; Hommay, Gerard; Lapchin, Laurent

doi:10.1093/jee/92.6.1311

Cited by 25 publications

(31 citation statements)

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“…In our case, we have shown that the influence of host density switches with the parasitoid's age (Barnay et al, 1999). Parasitization of T. evanescens was also affected by its female density.…”

Section: Discussionmentioning

confidence: 55%

Influences of host age, sex ratio, population density, and photoperiod on parasitism by Trichogramma evanescens Westw. (Hym., Trichogrammatidae)

Tunçbilek

Ayvaz

2003

AFS

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Moth species Ephestia kuehniella and Sitotroga cerealella are serious pests in cereal-based food processing facilities and stores in Turkey. Control of these pests is undertaken by regular space treatment of infested areas with pesticides. An alternative control method could be the release of parasitic wasps of the genus Trichogramma. In laboratory tests, we use T. evanescens as a parasitic wasp reared on the eggs of Ephestia kuehniella. Adult wasps emerging from the host were maintained in glass tubes at 27 ± 1°C, 60-70 ± 5 % r.h and L14:D10 and fed on honey solution. Adults of T. evanescens in vials without food enclosed from host eggs and all died within 1.8 days; in comparison, in vials with honey, live adults were evident for 15.2 days. Fresh (6-48 h) and old (72-96 h) host eggs were offered to T. evanescens and fresh eggs were more accepted than old. Host acceptance of females with males in vials was better than without males. The number of females in the vials also influenced the parasitization rate and single female parasitized more eggs. Adults living in light regime (L14:D10 and L6:D18) parasitized more eggs than in total darkness. Results are discussed with relation to enhancing parasitoid effectiveness in biological control in processing facilities and mills.

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Section: Discussionmentioning

confidence: 55%

Influences of host age, sex ratio, population density, and photoperiod on parasitism by Trichogramma evanescens Westw. (Hym., Trichogrammatidae)

Tunçbilek

Ayvaz

2003

AFS

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“…(Torticidae) eggs in vineyards and apple orchards (Barnay et al 1999;Scho¨ller and Hassan 2001); T. evanescens Westwood and T. principium Sugonyaev & Sorokina (both species were arrhenotokous) parasitizing storedproduct moths and heliothine eggs in flour mills and cotton fields, respectively (Scho¨ller et al 1997;Babi and Al-Nabhan 1998).…”

Section: Introductionmentioning

confidence: 99%

Efficacy assessment of some Trichogramma species (Hymenoptera: Trichogrammatidae) in controlling the potato tuber moth Phthorimaea operculella Zell. (Lepidoptera: Gelechiidae)

Saour

2004

J Pest Sci

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Laboratory studies were conducted to assess several life-history characteristics of three Trichogramma species-T. cacoeciae, T. evanescens, and T. principium-reared on potato tuber moth eggs. The effects of host age, parasitoid age, and different temperatures on the mean number of parasitized eggs and the percentage of emerged progeny were determined. The age of both Trichogramma and host eggs significantly affected the number of eggs parasitized by the wasps, but did not affect the percentage of parasitoids emerging from parasitized eggs. No intraspecific differences for potato tuber moth eggs were found among the tested Trichogramma species. However, T. principium proved to be more effective than T. cacoeciae and T. evanescens in parasitizing host eggs at high temperatures (>33°C). Trichogramma significantly decreased the number of potato tuber moth F 1 emerged progeny when they were released with moths in small cages either over potatoes or potato seedlings.

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“…Moreover, the contact time between the host and the parasitoid plays an important role in evaluating the efficacy of the parasitoid. When the host-parasitoid contact time was increased, the discovery and exploitation rates of host eggs were remarkably increased (Barnay et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Factors influencing the parasitism of codling moth eggs by Trichogramma cacoeciae March. and T. principium Sug. et Sor. (Hymen. Trichogrammatidae)

Makee

2004

J Pest Sci

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Non-choice laboratory experiments were conducted to evaluate the influence of host acceptance, previous rearing host, host age and the contact time between parasitoids and host on the efficacy of Trichogramma cacoeciae Marchal and T. principum Sug. et Sor. against the codling moth Cydia pomonella. The tendency of T. cacoeciae and T. principum females to attack the codling moth was similar to E. kuehniella, and it was not affected by the previous rearing host. T. cacoeciae showed a greater preference for codling moth eggs than T. principum. A high mean number of emerged F 1 progeny was observed when both parasitoids were sequentially reared on codling moths. Codling moth acceptance, the number of parasitized eggs and the number of emerged progeny were higher when younger codling moth eggs were offered. The tendency of female parasitoids to oviposit remained unchanged when the contact time with the host was prolonged. When the contact time was increased, the number of parasitized eggs and emerged offspring was higher. The results showed that the codling moth fertility (egg hatch) was reduced when younger eggs were offered and when the contact time with the parasitoids was increased. T. cacoeciae was more efficient in reducing codling moth fertility. The current study provided essential information necessary to increase the efficiency of T. cacoeciae and T. principum against the codling moth.

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Host Density-Dependence of Discovery and Exploitation Rates of Egg Patches of Lobesia botrana (Lepidoptera: Tortricidae) and Ephestia kuehniella (Lepidoptera: Pyralidae) by the Parasitoid Trichogramma cacoeciae (Hymenoptera: Trichogrammatidae)

Cited by 25 publications

References 0 publications

Influences of host age, sex ratio, population density, and photoperiod on parasitism by Trichogramma evanescens Westw. (Hym., Trichogrammatidae)

Influences of host age, sex ratio, population density, and photoperiod on parasitism by Trichogramma evanescens Westw. (Hym., Trichogrammatidae)

Efficacy assessment of some Trichogramma species (Hymenoptera: Trichogrammatidae) in controlling the potato tuber moth Phthorimaea operculella Zell. (Lepidoptera: Gelechiidae)

Factors influencing the parasitism of codling moth eggs by Trichogramma cacoeciae March. and T. principium Sug. et Sor. (Hymen. Trichogrammatidae)

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