Specific Foraging Kairomones Used By A Generalist Parasitoid

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Presence of the Fire Ant Solenopsis invicta (Westwood

Early L4 larvae used in this investigation were removed from rearing pots using soft forceps. The colony of S. invicta was obtained from a culture maintained at the University of Gainesville, Florida U.S.A. They were fed on a diet consisting of an equal mixture (dry weight) of ground powdered liver and sponge cake.

Royal Netherlands Academy of Arts and Sciences (KNAW)

contact kairomones (Waage, 1979; Driessen et al., 1995). However, when differences in patch profitability pro- vide the parasitoid with detectable differences in vola- tile cues at an earlier moment in their host-foraging sequences, this would help to optimize patch selection decisions even further. Using closely related larval

Enhancing insect predators using semiochemicals and

Retrospective Theses and Dissertations Iowa State University Capstones, Theses and Dissertations 1-1-2003 Enhancing insect predators using semiochemicals and artificial

A finely tuned strategy adopted by an egg parasitoid to

specific cues more frequently than generalist species (Vet and Dicke, 1992; Steidle and van Loon, 2003). Therefore, consistent with this concept, egg parasitoid species with a narrow host range should have developed a strategy finely tuned to exploit traces left by host females in a physiological condition that could ensure access to newly

Associative learning for host-induced fruit volatiles in

generalist parasitoid, since it enhances host location efficiency by reducing the time wasted on the decision of where to search for hosts. From an applied perspective, these HIPVs could be used to train mass-reared P. concolor in pre-release, to potentially improve its efficacy in the field.

Chemical Ecology of Some Underexplored Aspects of Plant

related experiences play important role in parasitoid host foraging. In chapter III, I hypothesized that certain compounds play key roles in the attractiveness of host-associated odor blends to parasitoids. The larval parasitoid, M. croceipes and its herbivore host, H. virescens, a major pest of cotton plant were used as model species to identify

Host foraging for differentially adapted Brassica-feeding

kairomones that may be detected either by antennation or ovipositor probing on the potential host.10 This behaviour is primed by cues received by the parasitoid during emergence from its mummy case.9 Taking these mechanistic results together, we hypothesised that given an equal supply of potential hosts, D. rapae would parasitize more

Dietary specialization and infochemical use in carnivorous

kairomones, synomones, natural enemies, parasitoid, predator, innate, learning, trophic levels, chemical ecology Abstract For the location of hosts and prey, insect carnivores (i.e., parasitoids or predators) often use info-chemical cues that may originate from the host/prey itself but also from the food of the host/prey, a

Location of Host and Host Habitat by Fruit Fly Parasitoids

herbivore induced non-specific host fruit wound volatiles are the major cues used by foraging females to locate their host. 2.2. Visual Stimuli Visual cues are expected to be of primary importance when the female parasitoid is in close contact with the micro-habitat, when the turbulent odor plume might furnish imprecise information [18,27].

Movement and Response to Semiochemicals by Parasitoids of

The 2 test odors used were green leaf volatiles released from soybeans damaged mechanically, and the plant-host com plex that included soybeans fed upon by P. scabra larvae and P. scabra larvae plus as sociated kairomones. All 4 parasitoid species initiated upwind flight to green leaf volatiles,

Host species-specific memory duration in the parasitoid wasp

With respect to learning in parasitoid wasps, Wäckers et al. (2006) found the duration of the feeding response of Microplitis croceipes to the learned odor to be dependent on the type of sugar that was used as the reward but not on the sugar concentration. Takasu and Lewis (2003), using the same parasitoid species, found that antennation of host

Responses of a generalist and a specialist parasitoid

Kairomones L. E. M. Vet, 1' 3 M. B. Sokolowski, 2 D. E. MacDonald, 2 and H. Snellen I Accepted October 27, 1992; revised December 20, 1992 Foraging parasitoids are thought to need more specific information than gen- eralists on the presence, identity, availability, and suitability of their insect host

Effect of sublethal doses of thiamethoxam and pirimicarb on

They may also reduce the parasitoid's behaviors such as searching capacity, response to host kairomones and pheromonal communication. Moreover, changes in foraging patterns and impairment of odor learning have been reported (Desneux et al., 2003). There are some studies that confirm these effects (De-Jiu et al., 1991; Desneux et al.,

The Use of General Foraging Kairomones in a Generalist Parasitoid

foraging kairomones in a generalist parasitoid. - Oikos 95: 78-86. Almost no comparative studies are available on the use of general and specific infochemical cues by generalist parasitoids with hosts from different families feeding on host plants also from different families. Based on literature, two hypotheses were

Specific Foraging Kairomones Used by a Generalist Parasitoid

SPECIFIC FORAGING KAIROMONES USED the generalist L. distinguendus is innately using specific cues for foraging. Two a larval and pupal parasitoid of at least


Foraging parasitoids are thought to need more specific information than gen- eralists on the presence, identity, availabiliry, and suitability of their insect host species.