2012
DOI: 10.1111/j.1570-7458.2012.01325.x
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Influence of visual cues on host‐searching and learning behaviour of the egg parasitoids Telenomus podisi and Trissolcus basalis

Abstract: Insect parasitoids use a variety of chemical and physical cues when foraging for hosts and food. Parasitoids can learn cues that lead them to the hosts, thus contributing to better foraging. One of the cues that influence host‐searching behaviour could be colour. In this study, we investigated the ability of females of the parasitoid wasps Telenomus podisi Ashmead and Trissolcus basalis Wollaston (both Hymenoptera: Scelionidae) to respond to colours and to associate the presence of hosts – eggs of Euschistus h… Show more

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Cited by 29 publications
(9 citation statements)
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“…This corroborates previous studies that showed that host location is oriented primarily by olfactory cues released directly from the nontarget host egg, which is more detectable and reliable (Vet & Dicke, 1992;Borges et al, 1998). However, in this case, visual information from the substrate could be relevant (Aquino et al, 2012). Once on the plant, the parasitoid probably passes through different steps of searching behavior.…”
Section: Semiochemicals From Host or Host-associated To Manage Parasisupporting
confidence: 75%
See 1 more Smart Citation
“…This corroborates previous studies that showed that host location is oriented primarily by olfactory cues released directly from the nontarget host egg, which is more detectable and reliable (Vet & Dicke, 1992;Borges et al, 1998). However, in this case, visual information from the substrate could be relevant (Aquino et al, 2012). Once on the plant, the parasitoid probably passes through different steps of searching behavior.…”
Section: Semiochemicals From Host or Host-associated To Manage Parasisupporting
confidence: 75%
“…For short-range cues, when close to the host, parasitoids may use defensive compounds, sex pheromones, and cuticular hydrocarbons (Borges et al, 1998(Borges et al, , 2003Laumann et al, 2009). When parasitoids are close to the host or have physical contact with it, semi-or non-volatile compounds, such as footprints and egg composition, become important for host final recognition, as well as other physical or visual factors, such as texture, color, and vibratory information (Borges et al, 2003;Aquino et al, 2012) (Figure 1 Telenomus podisi is an egg parasitoid of pentatomid bugs that prefers egg masses of the Neotropical brown stink bug, E. heros, whereas T. basalis shows preference for egg masses of the Southern green stink bug, N. viridula Sujii et al, 2002). Despite this preference, Tognon et al (2014), while studying the influence of original hosts on the chemotaxic behavior and parasitism of T. podisi, observed that when Tibraca limbativentris Stål (Hemiptera: Pentatomidae) was the original host, the females parasitized this species over E. heros, whereas those emerging from E. heros exclusively parasitized E. heros' eggs, suggesting that the original host can exert influence on their choice.…”
Section: Semiochemicals From Host or Host-associated To Manage Parasimentioning
confidence: 99%
“…Given that female T. japonicus use host-associated olfactory cues for host location, recognition, and acceptance (Zhong et al 2017, Boyle et al 2020, Malek et al 2021, results from the present study suggest that it forages throughout the canopy, or at least is attracted to the visual cue from YSC from various locations in the canopy. Many insects are attracted to the color yellow (Prokopy and Owens 1983), including Scelionidae (Ferreira Santos de Aquino et al 2012). While neither the distance over which T. japonicus responds to YSC nor the relative strength of its response to YSC versus host cues is known, it appears that YSC are a sensitive tool for monitoring this species.…”
Section: Discussionmentioning
confidence: 99%
“…and Trissolcus spp. have been shown to use visual cues for host location (de Aquino et al, 2012) and might spend an extended amount of time foraging for egg masses that are relatively uncommon and located far apart in space. We investigated different ways that UV radiation could affect parasitoid locomotion, host discovery, and exploitation by: (1) modifying their locomotor activity throughout the day (Laboratory experiment 1); (2) attracting to or repelling them (Laboratory experiment 2); and (3) modulating host discovery and/or exploitation of egg masses in heterogenous UV conditions (Semi‐field experiment).…”
Section: Introductionmentioning
confidence: 99%