Biological Control of the Leafminer Liriomyza trifolii (Burgess): Implications for Intraguild Predation between Diglyphus begini Ashmead and Steinernema carpocapsae (Weiser)

Sher, Roger B.; Parrella, M. P.; Kaya, Harry K.

doi:10.1006/bcon.1999.0794

Cited by 47 publications

(31 citation statements)

References 38 publications

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“…In addition to killing individual parasitoids, nematodes might negatively impact on parasitoid populations if the female parasitoid lays her eggs on nematode-infected weevils where they are unable to complete their development. However, female parasitoids tend to avoid hosts that have been infected by EPN (Everard et al, 2009;Lacey et al, 2003;Sher, Parrella, & Kaya, 2000). Females of two ichneumonid species detected and avoided codling moth larvae as little as 12 h after treatment of the host with IJs (Lacey et al).…”

Section: Competitionmentioning

confidence: 99%

Nematode Pathogenesis of Insects and Other Pests

Campos‐Herrera¹

2015

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Section: Competitionmentioning

confidence: 99%

Nematode Pathogenesis of Insects and Other Pests

Campos‐Herrera¹

2015

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“…Such kinds of food webs are theoretically predicted to decrease the potential of being stable, thus leading to extinction of both species [2]. Notwithstanding, intraguild predation is widespread [3,4,5,6] and this ubiquitous interaction is commonly observed in nature. There are several biological mechanisms to pro-mote the persistence of the food web, namely defenses induced by the presence of the IG-predator.…”

Section: Introductionmentioning

confidence: 99%

Prey refuge and morphological defense mechanisms as nonlinear triggers in an intraguild predation food web

ccedila

Gleria

Lyra

2020

Preprint

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Intraguild predation (IGP) is a type of interaction in which a top predator simultaneously competes and predates an intermediate prey that shares a third prey species with the top predator. While common in nature, most theoretical population dynamics models proposed in the literature predict that this three species interaction usually leads to extinction of the intermediate prey population. Predator-induced defenses are widely seen in these systems and should be incorporated in IGP models to promote coexistence. With this aim, we introduce a nonlinear response to the predation of IG-predator on IG-prey. The phase diagram of species coexistence is obtained as function of the attack efficiency and the degree of nonlinearity of the defense mechanism. Further we show how the nonlinearity affects the equilibrium populations. We unveil that there is an optimal nonlinearity at which the convergence towards the stationary coexistence regime is the fastest.

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“…glycerol, various polymers) or UV-protective (brighteners) actions (Grewal, 2002) although more needs to be done to enhance postapplication survival. The greatest potential for using EPNs against foliar pests is almost certainly in IPM programmes, in conjunction with other biocontrol agents (Sher and Parella, 1999) or selective chemicals (Rovesti and Deseo, 1990). EPNs are considered exceptionally safe biological agents (Akhurst and Smith, 2002).…”

Section: Introductionmentioning

confidence: 99%