Oviposition specificity of the specialist Tinthia myrmosaeformis under different degrees of behavioral restrictions

Turanli, Ferit; Schaffner, Urs

doi:10.1016/j.biocontrol.2003.11.002

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…For example, the hierarchical threshold model proposed by Courtney et al (1989) predicts that, although the degree of acceptability of the host plants may change depending on the intrinsic and extrinsic factors a gravid female experiences, their ranking will not be influenced. Turanli and Schaffner (2004) investigated the oviposition specificity of the sesiid moth Tinthia myrmosaeformis under varying levels of behavioural restrictions and concluded that the results are largely in agreement with Courtney et al's (1989) model, and that the different levels of host specificity exhibited can be explained by different motivational thresholds experienced by the females under the different test designs.…”

Section: Selection Of Effective Biological Control Agentssupporting

confidence: 69%

Classical biological control: exploiting enemy escape to manage plant invasions

2008

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Practitioners of classical biological control of invasive weeds are confronted with a dual expectation: to achieve successful control of plant invaders and to avoid damage to nontarget plants and adverse indirect effects. In this paper we discuss key issues that we consider to be crucial for a safe, efficient, and successful classical biological control project, and that have also caused some recent controversy. These include selection of effective control agents, host specificity of the biological control agents, implications of the genetic population structure of the target populations, and potential impact on native food webs. With regard to improving the success rate of biological control of plant invaders, we first emphasize the importance of a clear a priori definition of success and a more ecosystembased approach to better document both negative effects of the invasive plant as well as potential positive and negative effects of introducing biological control agents. Secondly, pre-release impact assessment could be improved by better focusing on how to reach high densities of the control agents and by including tolerance to and compensation of herbivory. Thirdly, we advocate a reinforced effort to integrate and combine biological control in combination with existing or potential management options. Finally, we propose various ecological and evolutionary hypotheses in the framework of our topic to document that biological control programmes against plant invaders also offer a great opportunity to gain new insights into basic processes in ecology and evolution.

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Section: Selection Of Effective Biological Control Agentssupporting

confidence: 69%

Classical biological control: exploiting enemy escape to manage plant invasions

2008

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“…A similar pattern was also found in studies investigating the potential of the sesiid moth Negotinthia myrmosaeformis (Herrich-Schaeffer) (syn. : Tinthia myrmosaeformis ) as a biological control agent for Potentilla recta L. (Rosaceae) [ 40 ]. However, in this study, the reduction in the number of species and attack levels from no-choice to multiple-choice cage conditions was not as pronounced as in our tests with D. aeratana .…”

Section: Discussionmentioning

confidence: 99%

Host Range and Impact of Dichrorampha aeratana, the First Potential Biological Control Agent for Leucanthemum vulgare in North America and Australia

Stutz

Clerck-Floate

Hinz

et al. 2021

Insects

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We evaluated the potential of the European root-feeding moth Dichrorampha aeratana as a biological control agent for the invasive weed Leucanthemum vulgare (oxeye daisy) in North America and Australia. The taxonomic proximity of the ornamental Shasta daisy (Leucanthemum × superbum) to L. vulgare and its popularity in North America made finding sufficiently host-specific biological control agents a challenge. No-choice tests conducted with 74 non-target species revealed partial or complete larval development on 11 species. In multiple-choice oviposition and larval development tests that were conducted in field cages, larvae were found on five of these, however in multiple-choice tests conducted under open-field conditions, larvae were only found on the ornamentals Shasta daisy and creeping daisy (Mauranthemum paludosum). Larval feeding by D. aeratana had no measurable impact on Shasta daisy, but larval feeding and plant competition reduced the biomass and number of flower heads of L. vulgare. We conclude that D. aeratana is a suitable biological control agent because it will not affect the ornamental value of Shasta or creeping daisies and because it is unlikely to feed on any other economically important or native species. We also expect D. aeratana to contribute to the suppression of L. vulgare populations.

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“…(2002) found that the leaf beetle Neochlamisus bebbianae (Brown) exhibited much stronger host plant fidelity when tested in larger arenas that provided a better imitation of natural conditions. Furthermore, Turanli & Schaffner (2004) found a more pronounced host plant fidelity with respect to oviposition in Tinthia myrmosaeformis (Lepidoptera: Sesiidae) in an open field set‐up than in laboratory and cage experiments. Therefore, more natural experiments are needed to establish the true degree of host plant fidelity in Yponomeuta moths.…”

Section: Introductionmentioning

confidence: 89%

Sympatric speciation in Yponomeuta: no evidence for host plant fidelity

Bakker¹,

Roessingh²,

Menken

2008

Entomologia Exp Applicata

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According to sympatric speciation theory, adaptation to different host plants is expected to pleiotropically lead to assortative mating, an important factor in the reduction of gene flow between the diverging subpopulations. This scenario predicts mating on and oviposition preference for the respective hosts in both the diverging subpopulations and recently originated species. Here, we test both predictions in the oligophagous Yponomeuta padellus (L.) and the monophagous Yponomeuta cagnagellus (Hübner) (Lepidoptera: Yponomeutidae), two closely related small ermine moth species from the western European clade of Yponomeuta for which speciation in sympatry has been proposed. Mating location and adult host acceptance were evaluated under both semi-field (in a large outdoor cage with a choice of host and non-host plants) and field conditions. In the semi-field experiment, only Y. cagnagellus showed some preference for mating on its own host (16% of all mating pairs) over non-host plants (3% of all mating pairs). However, in both species, more than 80% of the mating pairs were not formed on a plant but instead on the cage itself. Further examination of the mating site of Y. cagnagellus in the field revealed no preference for host plants over non-host plants in the two consecutive years of observation. Yponomeuta padellus females, collected from and reared on Prunus spinosa L. (Rosaceae), showed an oviposition preference for the alternative host Crataegus monogyna Jacq. (Rosaceae) in the semi-field experiment. We thus found no evidence that host-plant fidelity (in terms of mating site) has been the driving force in the speciation process of these Yponomeuta species, nor did we find evidence of host race formation in the tested population of the oligophagous Y. padellus .

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Oviposition specificity of the specialist Tinthia myrmosaeformis under different degrees of behavioral restrictions

Cited by 8 publications

References 7 publications

Classical biological control: exploiting enemy escape to manage plant invasions

Classical biological control: exploiting enemy escape to manage plant invasions

Host Range and Impact of Dichrorampha aeratana, the First Potential Biological Control Agent for Leucanthemum vulgare in North America and Australia

Sympatric speciation in Yponomeuta: no evidence for host plant fidelity

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