Diet of a polyphagous arthropod predator affects refuge seeking of its thrips prey

Venzon, Madelaine; Janssen, Arne; Pallini, Ângelo; Sabelis, Maurice W.

doi:10.1006/anbe.2000.1483

Cited by 85 publications

(86 citation statements)

References 25 publications

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“…Competition for food between the spider mites and the thrips is also not likely to have occurred, because thrips levels were quite low (\5 larvae leaf -1 ). However, other studies have shown that thrips hide inside the webbing produced by spider mites when predators are present Venzon et al 2000), so that local competition between thrips and spider mites might have played a role. Nevertheless, it is likely that the lower levels of spider mite leaf damage were a result of predatory mites as well as thrips feeding on spider mites.…”

Section: Discussionmentioning

confidence: 96%

Pest species diversity enhances control of spider mites and whiteflies by a generalist phytoseiid predator

Messelink¹,

Maanen

Holstein-Saj³

et al. 2009

BioControl

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To test the hypothesis that pest species diversity enhances biological pest control with generalist predators, we studied the dynamics of three major pest species on greenhouse cucumber: Western flower thrips, Frankliniella occidentalis (Pergande), greenhouse whitefly, Trialeurodes vaporariorum (Westwood), and two-spotted spider mites, Tetranychus urticae Koch in combination with the predator species Amblyseius swirskii Athias-Henriot. When spider mites infested plants prior to predator release, predatory mites were not capable of controlling spider mite populations in the absence of other pest species. A laboratory experiment showed that predators were hindered by the webbing of spider mites. In a greenhouse experiment, spider mite leaf damage was lower in the presence of thrips and predators than in the presence of whiteflies and predators, but damage was lowest in the presence of thrips, whiteflies and predators. Whitefly control was also improved in the presence of thrips. The lower levels of spider mite leaf damage probably resulted from (1) a strong numerical response of the predator (up to 50 times higher densities) when a second and third pest species were present in addition to spider mites, and (2) from A. swirskii attacking mobile spider mite stages outside or near the edges of the spider mite webbing. Interactions of spider mites with thrips and whiteflies might also result in suppression of spider mites. However, when predators were released prior to spider mite infestations in the absence of other pest species, but with pollen as food for the predators, we found increased suppression of spider mites with increased numbers of predators released, confirming the role of predators in spider mite control. Thus, our study provides evidence that diversity of pest species can enhance biological control through increased predator densities.

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Section: Discussionmentioning

confidence: 96%

Pest species diversity enhances control of spider mites and whiteflies by a generalist phytoseiid predator

Messelink¹,

Maanen

Holstein-Saj³

et al. 2009

BioControl

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“…Evidences seemed to point to the first option: the mite might have presented effective defense strategies. Effective defense strategies are already known for Tetranychus urticae (Koch) (Acari: Tetranychidae), whose webs impair predatory activity of Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) on Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) (Venzon et al, 2000). Similarly, T. evansi also spin webs, which may have impaired the activity of the predator under test.…”

Section: Discussionmentioning

confidence: 99%

Functional response of the predator Eriopis connexa (Coleoptera: Coccinellidae) to different prey types

Sarmento

Pallini

Venzon

et al. 2007

Braz. arch. biol. technol.

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“…It is known that predator diet is important in inducing anti-predator behaviour in prey ( Mathis & Smith, 1993;Venzon et al , 2000;Persons et al , 2001;Magalhães et al , 2005 ), and I. degenerans larvae may show the same behaviour with respect to cannibalism. In this case, we would expect the larvae to seek more refuge in the domatia when cannibals had previously fed on conspecific larvae than with cannibals that had fed on pollen.…”

Section: Discussionmentioning

confidence: 99%

Domatia reduce larval cannibalism in predatory mites

Ferreira

Eshuis

Janssen

et al. 2008

Ecological Entomology

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1. Acarodomatia are small structures on the underside of leaves of many plant species, which are mainly inhabited by carnivorous and fungivorous mites.2. Domatia are thought to protect these mites against adverse environmental conditions and against predation. They are considered as an indirect plant defence; they provide shelter to predators and fungivores and these in turn protect the plants against herbivores and fungi.3. We studied the possible role of domatia of coffee (Coffea arabica L.) (Rubiaceae) and sweet pepper (Capsicum annum L.) (Solanaceae) in reducing cannibalism in the mites inhabiting the domatia. We measured cannibalism of larvae by adults of the predatory mites Iphiseiodes zuluagai Denmark & Muma and Amblyseius herbicolus Chant on coffee leaf discs and of the predatory mite Iphiseius degenerans (Berl.) on sweet pepper leaf. Domatia were closed with glue or left open.4. Cannibalism in all three species increased when domatia were closed. With I. degenerans, moreover, we found that the previous diet of the cannibal attenuated the effect of domatia on cannibalism.5. We conclude that domatia can protect young predatory mites against cannibalism by adults and that the diet of cannibals affects the rate of cannibalism.

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Diet of a polyphagous arthropod predator affects refuge seeking of its thrips prey

Cited by 85 publications

References 25 publications

Pest species diversity enhances control of spider mites and whiteflies by a generalist phytoseiid predator

Pest species diversity enhances control of spider mites and whiteflies by a generalist phytoseiid predator

Functional response of the predator Eriopis connexa (Coleoptera: Coccinellidae) to different prey types

Domatia reduce larval cannibalism in predatory mites

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