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

Content Provider	Springer Nature Link
Author	Tunçbilek, A. Ş. Ayvaz, A.
Copyright Year	2003
Abstract	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.
Starting Page	176
Ending Page	180
Page Count	5
File Format	PDF
ISSN	16124758
Journal	Journal of Pest Science
Volume Number	76
Issue Number	6
e-ISSN	16124766
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2003-12-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Entomology Agriculture Plant Pathology Ecology Forestry Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science

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