Olfactory responses of <i>Aphidius gifuensis</i> to odors of host plants and aphid‐plant complexes

Yang, Song; Xu, Rui; Yang, S. Y.; Rong-ping, Kuang

doi:10.1111/j.1744-7917.2009.01282.x

Cited by 28 publications

(29 citation statements)

References 41 publications

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“…Our results indicated that the aphidinduced tomato volatiles not only attracted an aphid parasitoid, but also two whitefly parasitoids. A similar result was obtained by Yang et al (2009) with plants infested with either M. persicae or L. erysimi; these authors speculated that the quantity of aphid-induced plant volatiles may be important. Our results demonstrated that the aphid parasitoid A. gifuensis was most attracted to high aphid densities.…”

Section: Discussionsupporting

confidence: 70%

“…Our results demonstrated that the aphid parasitoid A. gifuensis was most attracted to high aphid densities. A similar result was obtained by Yang et al (2009) with plants infested with either M. persicae or L. erysimi; these authors speculated that the quantity of aphid-induced plant volatiles may be important. Specialist parasitoids often use very specific compounds released from the host plant (Steidle & van Loon, 2003).…”

Section: Discussionsupporting

confidence: 70%

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Aphid‐induced plant volatiles affect the attractiveness of tomato plants to Bemisia tabaci and associated natural enemies

Tan

Liu

2014

Entomologia Exp Applicata

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An in-depth understanding of plant-mediated interactions between herbivores and their natural enemies is essential in community ecology and co-evolution, and for developing sustainable pest management strategies. The influence of Myzus persicae (Sulzer) (Hemiptera: Aphididae)-induced tomato plant [Solanum lycopersicum L. (Solanaceae)] volatile compounds on the olfactory responses of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), three predator species [Coccinella septempunctata L., Propylea japonica (Mulstant) (both Coleoptera: Coccinellidae), and Orius sauteri (Poppius) (Hemiptera: Anthocoridae)], two whitefly parasitoid species [Encarsia formosa (Gahan) and Encarsia sophia (Girault & Dodd) (Hymenoptera: Aphelinidae)], and one aphid parasitoid species [Aphidius gifuensis Ashmead (Hymenoptera: Aphidiidae)] were examined in two-choice tests using a four-arm olfactometer. Tomato plants were experimentally manipulated for aphid density, duration of aphid feeding, and interval between aphid removal and the behavioral test. We also compared the systemic effects of aphid feeding on the olfactory behavior of whiteflies and natural enemies according to three relative leaf positions: the aphid-infested leaf itself and two adjacent leaves (above and below). Bemisia tabaci were deterred by the odors of the leaves infested with aphids in all treatments. All six natural enemies were attracted to the leaves infested with aphids. Bemisia tabaci deterrence by volatiles was greater for leaves at the highest aphid density, and with increasing duration of exposure to aphid feeding. In contrast, the attraction to leaves was greater for the three parasitoids than for the three predators both with increasing aphid density and increasing duration of plant exposure to aphids. There was no significant influence of leaf position on preference of B. tabaci, the two species of lady beetles, and the aphid parasitoid. The two Encarsia species were attracted to the leaf above the aphid-infested leaves, indicating that systemic volatiles were released by adjacent leaves. On the other hand, O. sauteri was only attracted by the aphid-infested leaf itself. Our results showed that M. persicae-infested host plants emitted volatiles that could inhibit the colonization by B. tabaci and also attract natural enemies of both aphids and whiteflies. The results of this study may need to be considered further for optimizing pest management methods.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionsupporting

confidence: 70%

Aphid‐induced plant volatiles affect the attractiveness of tomato plants to Bemisia tabaci and associated natural enemies

Tan

Liu

2014

Entomologia Exp Applicata

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“…Our results suggest that both natural enemies are able to rapidly locate aphid colonies, which would benefit the effectiveness of these two natural enemies. Since the amounts of volatiles produced by the plant/aphid complex will increase with time as the aphid colonies increase in size, attraction of A. ervi and A. aphidimyza to the aphid-infested plants will probably increase, as has been demonstrated for Aphidius gifuensis (Ashmead) (Hymenoptera: Braconidae) (Yang et al 2009).…”

Section: Discussionmentioning

confidence: 95%

Attraction of Aphidius ervi (Hymenoptera: Braconidae) and Aphidoletes aphidimyza (Diptera: Cecidomyiidae) to Sweet Alyssum and Assessment of Plant Resources Effects on their Fitness

Aparicio

Gabarra

Arnó

2018

Journal of Economic Entomology

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The green peach aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae) is one of the most economically important aphid species affecting crops worldwide. Since many natural enemies of this aphid have been recorded, biological control of this pest might be a viable alternative to manage it. Selected plant species in field margins might help to provide the natural enemies with food sources to enhance their fitness. This study aimed to investigate if sweet alyssum, Lobularia maritima (L.) (Brassicaceae), is a potential food source for the parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) and the predator Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae), and whether this flower could contribute to enhance the biological control of M. persicae. Volatiles produced by alyssum, with and without flowers, attracted both natural enemies. This attractiveness to alyssum flowers was disrupted when compared with peach shoots recently infested with a relatively low number of aphids. When aphids were absent, parasitoids exposed to alyssum survived longer than those that fed on a sugar solution or on water. In the case of the predator, alyssum flowers did not benefit longevity since the nectaries were inaccessible to females. However, our results provide evidence that A. aphidimyza would be able to feed on nectar if accessible. The floral resource did not improve the reproductive capacity of the two natural enemies, but the 10% sugar solution increased the egg load of the predator. Provision of other sugar resources, such as flowers with exposed nectaries and extra floral nectar may also be a viable option to improve the biological control of M. persicae.

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“…The endoparasitoid, Aphidius gifuensis (Ashmead), is one of the most important natural control agent for S . avenae on wheat [ 33 – 34 ]. So, we hypothesize that S .…”

Section: Introductionmentioning

confidence: 99%

Impact of water-deficit stress on tritrophic interactions in a wheat-aphid-parasitoid system

2017

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Increasing temperature and CO2 concentrations can alter tritrophic interactions in ecosystems, but the impact of increasingly severe drought on such interactions is not well understood. We examined the response of a wheat-aphid-parasitoid system to variation in water-deficit stress levels. Our results showed that arid area clones of the aphid, Sitobion avenae (Fabricius), tended to have longer developmental times compared to semiarid and moist area clones, and the development of S. avenae clones tended to be slower with increasing levels of water-deficit. Body sizes of S. avenae clones from all areas decreased with increasing water-deficit levels, indicating their declining adaptation potential under drought. Compared to arid area clones, moist area clones of S. avenae had a higher frequency of backing under severe water stress only, but a higher frequency of kicking under well-watered conditions only, suggesting a water-deficit level dependent pattern of resistance against the parasitoid, Aphidius gifuensis (Ashmead). The number of S. avenae individuals attacked by the parasitoid in 10 min showed a tendency to decrease with increasing water-deficit levels. Clones of S. avenae tended to have lower parasitism rates under treatments with higher water-deficit levels. The development of the parasitoid tended to be slower under higher levels of water-deficit stress. Thus, the bottom-up effects of water-deficit stressed plants were negative on S. avenae. However, the top-down effects via parasitoids were compromised by water-deficit, which could favor the growth of aphid populations. Overall, the first trophic level under water-deficit stress was shown to have an indirect and negative impact on the third trophic level parasitoid, suggesting that parasitoids could be increasingly vulnerable in future warming scenarios.

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Olfactory responses of Aphidius gifuensis to odors of host plants and aphid‐plant complexes

Cited by 28 publications

References 41 publications

Aphid‐induced plant volatiles affect the attractiveness of tomato plants to Bemisia tabaci and associated natural enemies

Aphid‐induced plant volatiles affect the attractiveness of tomato plants to Bemisia tabaci and associated natural enemies

Attraction of Aphidius ervi (Hymenoptera: Braconidae) and Aphidoletes aphidimyza (Diptera: Cecidomyiidae) to Sweet Alyssum and Assessment of Plant Resources Effects on their Fitness

Impact of water-deficit stress on tritrophic interactions in a wheat-aphid-parasitoid system

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