Intraguild predation of Orius niger (Hemiptera: Anthocoridae) on Trichogramma evanescens (Hymenoptera: Trichogrammatidae)
| Autor: | Ekrem Atakan, Alican Kurtuluş, Serkan Pehlivan, Tuğcan Alinç |
|---|---|
| Přispěvatelé: | Çukurova Üniversitesi |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
hemiptera trichogramma evanescens Biological pest control biological control Trichogramma evanescens trichogrammatidae Hymenoptera Biology 010603 evolutionary biology 01 natural sciences Anthocoridae Toxicology Pyralidae orius niger Orius niger anthocoridae ephestia kuehniella biology.organism_classification 010602 entomology Trichogrammatidae QL1-991 Insect Science hymenoptera Zoology Intraguild predation intraguild predation |
| Zdroj: | European Journal of Entomology, Vol 114, Iss 1, Pp 609-613 (2017) |
| ISSN: | 1802-8829 1210-5759 |
| DOI: | 10.14411/eje.2017.074 |
| Popis: | Intraguild predation of a generalist predator, Orius niger Wolff(Hemiptera: Anthocoridae) on Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae), was determined in choice and no-choice experiments using a factitious host, Ephestia kuehniella Zeller (Lepidoptera: Pyralidae), under laboratory conditions. Choice and no-choice experiments were conducted in order to assess the level of intraguild predation of O. niger on E. kuehniella eggs parasitized by T. evanescens. In no-choice experiments, approximately 50 sterile (1) non-parasitized, (2) 3-day-old parasitized, or (3) 6-day-old parasitized E. kuehniella eggs were offered to 24-h-old females of O. niger in glass tubes. In choice experiments approximately 25 eggs of two of the three groups mentioned above were offered to 24-h-old O. niger females. In both choice and no-choice experiments, O. niger consumed more non-parasitized eggs of E. kuehniella. However, intraguild predation occurred, especially of 3-day-old parasitoids, but very few 6-day-old parasitized eggs were consumed. The preference index was nearly 1 indicating O. niger preferred mainly non-parasitized E. kuehniella eggs. A lower level of intraguild predation is expected under field conditions but needs to be investigated using further experiments. © Institute of Entomology, Biology Centre, Czech Academy of Sciences, Ceské Budejovice. |
| Databáze: | OpenAIRE |
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