caa a22 4500 477073514 CHVBK 20180405111433.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02764254 doi (NATIONALLICENCE)springer-10.1007/BF02764254 Oviposition behaviour in Ostrinia nubilaus ( Lep.: pyralidae ) and consequences on host location and oviposition in Trichogramma brassicae ( Hym.: Trichogrammatidae ) [Elektronische Daten] [F. Garnier-Geoffroy, P. Robert, N. Hawlitzky, B. Frerot] Comportement de ponte d' Ostrinia nubilalis (Lep. Pyralidaé) et ses conséquences sur la localisation de l'hôte et l'oviposition de Trichogramma brassicae (Hym. :Trichogrammatidae) Before oviposition, Östrinianubilalis Hübner females sweep the surface of the plant with their abdominal tip extruded. The consequences of such behaviour were studied on host searching and oviposition behaviours of the parasitoidTrichogramma brassicae Bezdenko. Egg-masses ofO. nubilalis, associated or not with sweeping, were submitted toT. brassicae females. The behaviour ofT. brassicae females appeared to be very different between the two situations. The parasitoid in the vicinity of an egg-mass associated with sweeping spent more time on the corn leaf. Ninety percent of females located the egg-mass with sweeping, whereas only 40% located the egg-mass without sweeping. Eighty three percent ofT. brassicae females parasitized egg-masses with sweeping, but only 10% in the case without sweeping. Although no deposit was visible, a chemical trail was probably left behind and was found to arrest the parasitoid, to promote host recognition and to trigger oviposition. The amount of the scales left behind on the corn leaf during the sweeping behaviour was also taken into account but did not appear to constitute the trail. The passage over the trail followed by the egg-mass examination constituted behavioural steps which seemed necessary for oviposition in theT. brassicae female Lavoisier Abonnements, 1996 kairomone nationallicence chemical trail nationallicence moth scales nationallicence parasitoid nationallicence corn plant nationallicence host searching nationallicence Garnier-Geoffroy F. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut Robert P. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut Hawlitzky N. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut Frerot B. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut Entomophaga Springer Netherlands 41/2(1996-06-01), 287-299 0013-8959 41:2<287 1996 41 10526 https://doi.org/10.1007/BF02764254 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02764254 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Garnier-Geoffroy F. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut NATIONALLICENCE 700 1- Robert P. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut NATIONALLICENCE 700 1- Hawlitzky N. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut NATIONALLICENCE 700 1- Frerot B. INRA, Unité de Phytopharmacie et Médiateurs Chimiques Route de Saint Cyr, 78026, Versailles, Cedex, France aut NATIONALLICENCE 773 0- Entomophaga Springer Netherlands 41/2(1996-06-01), 287-299 0013-8959 41:2<287 1996 41 10526 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer