EFFECT OF FOOD SOURCES ON THE LONGEVITY AND FECUNDITY OF PHOLETESOR ORNIGIS (WEED) (HYMENOPTERA: BRACONIDAE)

Abstract

Can. Ent. 124: 341-346 (1992) The fecundity of first-generation adult Pholetesor ornigis (Weed) increased when individuals were confined with flowers of creeping "Charlie" (Glechoma hederacea L.), dandelion (Tarmacum oficinale Weber). and apple (Malus domesricus L.), but not with blossoms of chickweed [Stellaria media (L.) Cyril101 or Shepherd's purse [Capsella bursa-pastoris &.) Medic]. Longevity of P. ornigis was little affected. The fecundity of second-generation P. ornigis increased when individuds were confined with terminal leaves of apple with honeydew of the aphid Aphispomi DeGeer, but not when confined with terminal leaves without honeydew or with flowers of round-leaved mallow (Malva neglecta Wallr.) or red clover (Trifolium prateare L.). Longevity of P. ornigis adults also increased when they were provided with aphid honeydew. There were significant differences between the total number (oviwsited and ovarian) of engs produced by second-generation females given different f o d sources. Those given a&; d honeydew oviposited a greater proportion of their eggs than those confined with apple leaves without honeydew or with flowers of M. neglects or T, pratense. Adult P. orniRis fed ,an aqueous solution of honey (5050, vfv) lived longest and produced more eggs than those provided with any other food source. Hagley, E.A.C., et D.R. Barber. 1992. Effet de divers types de noumture sur la longkvit6 et la fkconditk de Pholetesor ornigis (Weed) (Hymenoptera: Braconidae). Can. Ent. 124: 341-346. La feconditk des adultes de la premikre gentration de Pholetesor omigis (Weed) augmente chez les individus enfermCs avec des fleurs du glCcome lierre (Glechoma hederacea L.), du pissenlit (Taraxacum officinale Weber), ou du pornmier (Malus domest i c~ L.), mais pas chez les individus enfemes avec des fleurs de la stellaire moyenne [Sfelloria media (L.) Cyrillo] ou de la capselle bourse B pasteur [Capsella bursapasroris (L.) Medic]. La IongCvitC de I'espike est peu affect& par la nature de la plante.La fkonditk des adultes de seconde generation de P. orni~is augmenle chez les individus enferm6s avec des feuilles terminales de pornmiers garnies de miellat du puceron Aphis pomi DeGeer, mais pay chez les individus enfermCs avec des feuiles terminales sans miellat ou avec des flem de la mauve ntgligke (Malva neglect0 Walk.) ou du mHe des champs (Trifolium pratense L.). La Wsence de miellat augmente @dement la IongtvitC de P. ornigis. II y a des diffewnces significatives entre le nombre total d'oeufs (pondus ou encore dans I'ovaire) produits par la seconde gCn6ration de fernelles, selon la nature de la noumture qu'elles reqoivent. Les fernelles nourries de miellat pondent une plus grande proportion de leurs oeufs que les femelles enfermks avec des feuilles de pommiers sans miellat ou avec des fleurs de M. neglecta ou de T. pratense.Les adultes de P. ornigis nourris d'une solution aqueuse de miel (5050, vlv) vivent plus longtemps et produisent plus d'oeufs que les femelles soumises ? I tout autre kgime alimentaire .[Traduit par...

Color and Height Influence the Effectiveness of an Artificial Feeding Site for a Larval Endoparasitoid, Cotesia Vestalis (Haliday) (Hymenoptera: Braconidae)

“…Many authors have claimed that the diet of adult parasitoids significantly affects longevity and parasitization ability 8,10,11,15,27,33 . However, practical methods for artificial food supply in commercial greenhouses have not been discussed.…”

Understanding How Parasitoids Balance Food and Host Needs: Importance to Biological Control

“…Studies on food-foraging have been initiated as early as in the 1910s (Howard, 1910;Doten, 1911;Johnston, 1913) but only limited aspects of parasitoid feeding have been documented. In laboratory studies, the availability of a variety of food has been shown to increase longevity and fecundity of parasitoids (Leius, 1961a,b;1963;Syme 1975Syme , 1977Jervis and Kidd, 1986;Hagley and Barber, 1992;Idris and Grafius, 1995;Olson and Nechols, 1995). In some species, feeding was even found to be obligatory before oviposition could take place (Leius, 1961a;Jervis and Kidd, 1986;Takasu and Hirose, 1991).…”

Influence of age and diet on the performance of Cephalonomia stephanoderis (Hymenoptera, Bethylidae) a parasitoid of the coffee berry borer, Hypothenemus hampei (Coleoptera, Curculionidae)

“…Laboratory studies have demonstrated that parasitoids fed with honey or sugary solutions have their longevity and/or fecundity increased (Syme 1977;Hagley & Barber 1992;Leatemia et al 1995;Siekmann et al 2001;Sisterson & Averill 2002). In the case of C. stephanoderis, laboratory studies demonstrated that diluted honey extends adult survivorship up to 80% (Abraham et al 1990;Barrera et al 1993;Lauzière et al 2000).…”