D-vac sampling for predatory arthropods in winter wheat

Elliott, Norman C.; Tao, Fulu; Fuentes-Granados, Roger G.; Elliott, David; Greenstone, Matthew H.; Shufran, Kevin A.; Royer, T. A.

doi:10.1016/j.biocontrol.2006.04.017

Cited by 29 publications

(16 citation statements)

References 14 publications

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“…All of the samples were collected by the same two individuals to reduce any variability of the sampling. This method has been shown to provide a sound representation of all of the trophic levels interacting with the vegetation (Letourneau and Goldstein 2001) and is used extensively to study arthropods on herbaceous crops (Caballero-López et al 2010;Elliott et al 2006;Stewart and Wright 1995).…”

Section: Methodsmentioning

confidence: 99%

Weeds, aphids, and specialist parasitoids and predators benefit differently from organic and conventional cropping of winter cereals

et al. 2011

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The aphid-natural enemy interaction in winter wheat fields constitutes a complex system that has been frequently studied because of its implication for biological control. However, not all of the aphids living in cereal fields are crop pests, as there are also aphids living on weeds that may serve as alternative hosts or prey for aphid parasitoids or predators. In this context, a concomitant survey of the plant and insect communities was conducted to understand how different plant communities affect the abundance and richness of aphids and the interactions with their natural enemies. The plant community was split into functional groups (grasses, legumes and forbs), and the aphid community was divided into feeding groups according to their host preferences (specialists in grasses or forbs). The grass aphids, which dominated the total aphid catches, responded positively to grass cover, which was particularly enhanced in the conventional fields. Conversely, the forb aphids, which mainly conditioned the total species richness of the aphids, were closely correlated with the local abundance of legumes. The system of cereal aphid-parasitoids was enhanced in the conventional fields, where the abundance of grasses was higher, whereas the legumes of the organic fields indirectly played a key role in enhancing the richness of the parasitoids and the abundance of predators. Our findings indicate that a bottom-up effect exists throughout the plant community, aphids, and aphidophagous insects and that plant community characteristics should be considered to better understand cereal aphid control.Keywords Cereal aphids Á Plant-insect interaction Á Farming system Á Weed community Á Winter wheat Communicated by M. Traugott. Electronic supplementary materialThe online version of this article (

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Section: Methodsmentioning

confidence: 99%

Weeds, aphids, and specialist parasitoids and predators benefit differently from organic and conventional cropping of winter cereals

et al. 2011

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“…PSE would certainly be a significant risk in studies where D-vac and G-vac nozzles have intentionally been held above the ground surface during sampling (e.g. Elliot et al, 2006;Doxon et al, 2011).…”

Section: Methodsmentioning

confidence: 99%

“…The simplest approach has been to sweep the nozzle across the surface of the vegetation within a defined area (e.g. Elliot et al, 2006;Doxon et al, 2011). A second approach has been to apply the nozzle of the apparatus flat against the ground for a given time period.…”

Section: Introductionmentioning

confidence: 99%

Suction sampling of grassland invertebrates using the G-vac: Quantifying and avoiding peripheral suction effects

Cherrill¹

2015

Eur. J. Entomol.

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“…All samples were taken by the same two people to reduce sampling variability. This method has been shown to provide a good representation of all trophic levels interacting with vegetation (Letourneau and Goldstein 2001), and is used extensively to study arthropods in crops (Stewart and Wright 1995;Elliott et al 2006).…”

Section: Samplingmentioning

confidence: 99%

Herbivores, saprovores and natural enemies respond differently to within-field plant characteristics of wheat fields

et al. 2016

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D-vac sampling for predatory arthropods in winter wheat

Cited by 29 publications

References 14 publications

Weeds, aphids, and specialist parasitoids and predators benefit differently from organic and conventional cropping of winter cereals

Weeds, aphids, and specialist parasitoids and predators benefit differently from organic and conventional cropping of winter cereals

Suction sampling of grassland invertebrates using the G-vac: Quantifying and avoiding peripheral suction effects

Herbivores, saprovores and natural enemies respond differently to within-field plant characteristics of wheat fields

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