Effects of floral resources on fitness of the parasitoids Trichogramma exiguum (Hymenoptera: Trichogrammatidae) and Cotesia congregata (Hymenoptera: Braconidae)

Dichotomy of male and female responses to hoverfly-driven cues and floral competition in the parasitoid wasp Aphidius ervi Haliday

“…The availability of food can impact on several aspects of parasitoid behaviour and biology not considered in the current study: foraging, decision making, flight behaviour and multiple aspects of fecundity being among them (Olson et al, 2005;Araj et al, 2006Araj et al, , 2009Wanner et al, 2006;Vattala et al, 2006;Witting-Bissinger et al, 2008). Thus, whilst it appears based on the current study that only severe hoverfly competition would negatively impact parasitoid wasp floral resource use, it is possible that reduced competitive pressure could still lead to sub-lethal antagonistic effects.…”

“…In comparison, wasp survival was much increased when individuals were provided with a sugar-source, with honey being particularly beneficial to longevity in both sexes. This can be attributed to artificial sucrose solutions being especially effective in prolonging parasitoid lifespans, more so than floral resources in some cases (Witting-Bissinger et al, 2008).…”

Enhancing biological control of corn earworm, Helicoverpa zea and thrips through habitat management and inundative release of Trichogramma pretiosum in corn cropping systems

“…For example, a greenhouse experiment showed that survival of the egg parasitoid Trichogramma carverae Oatman and Pinto was greater in presence of flowering shoots of Lobularia maritima L. or Fagopyrum esculentum Moench or Borago officinalis L. than in shoots without flowers and the control treatment (Begum et al, 2006). Similarly, floral resources provided by buckwheat or fennel enhanced longevity and fecundity of the parasitoid Trichogramma exiguum Pinto and Platner in a caged experiment (Witting-Bissinger et al, 2008). However, Gurr and Nicol (2000) suggested that because Trichogramma spp.…”

Longevity and fecundity of the egg parasitoid Telenomus podisi provided with different carbohydrate diets

“…Diagram of experimental cage based on Witting‐Bissinger et al. (). The cage was constructed from clear acrylic tubing to form a cylinder with mesh screens covering the upper and lower surfaces, to house T elenomus podisi .…”