Organic cropping practice decreases pest abundance and positively influences predator-prey interactions

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Organic cropping practice decreases pest abundance and positively influences predator-prey interactions. / Jacobsen, Stine K.; Moraes, Gilberto J.; Sørensen, Helle; Sigsgaard, Lene.

I: Agriculture, Ecosystems and Environment, Bind 272, 2019, s. 1-9.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Jacobsen, SK, Moraes, GJ, Sørensen, H & Sigsgaard, L 2019, 'Organic cropping practice decreases pest abundance and positively influences predator-prey interactions' Agriculture, Ecosystems and Environment, bind 272, s. 1-9. https://doi.org/10.1016/j.agee.2018.11.004

APA

Jacobsen, S. K., Moraes, G. J., Sørensen, H., & Sigsgaard, L. (2019). Organic cropping practice decreases pest abundance and positively influences predator-prey interactions. Agriculture, Ecosystems and Environment, 272, 1-9. https://doi.org/10.1016/j.agee.2018.11.004

Vancouver

Jacobsen SK, Moraes GJ, Sørensen H, Sigsgaard L. Organic cropping practice decreases pest abundance and positively influences predator-prey interactions. Agriculture, Ecosystems and Environment. 2019;272:1-9. https://doi.org/10.1016/j.agee.2018.11.004

Author

Jacobsen, Stine K. ; Moraes, Gilberto J. ; Sørensen, Helle ; Sigsgaard, Lene. / Organic cropping practice decreases pest abundance and positively influences predator-prey interactions. I: Agriculture, Ecosystems and Environment. 2019 ; Bind 272. s. 1-9.

Bibtex

@article{a051ea5dd89a4cb8af9101ed4e76656b,
title = "Organic cropping practice decreases pest abundance and positively influences predator-prey interactions",
abstract = "Cropping practice influence arthropod species abundance and diversity in agroecosystems, thus impacting populations of insect pests and their natural enemies. A field study was conducted to investigate whether pest and natural enemy abundance was higher in organic compared with conventional strawberry fields, and whether the non-managed vegetation surrounding the field impacted natural enemy abundance and diversity in and around the field sites. The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), and predatory mites were sampled from strawberry leaflets and the leaves of wild herbaceous plants from the surrounding vegetation. Insect predators, hymenopteran parasitoids, spiders and herbivores were collected from the same habitats. Abundance of T. urticae was ten-fold higher in conventional compared to organic strawberry fields, whereas the ratio of spider mite to predatory mites was 9.5 times lower in organic compared with conventional strawberry fields. The 14 species of predatory mites identified were all from the family Phytoseiidae, and predominantly found on stinging nettle, Urtica dioica L. (Rosales: Urticaceae) (> 80{\%} of individuals), in the surrounding vegetation. There was no significant effect of cropping practice on the density of insect predators and spiders, while the density of insect parasitoids and insect herbivores was higher in the organic compared to the conventional sites. Total species richness at the edge of organic fields and in the surrounding vegetation of both organic and conventional sites was higher than in the other sampling sites. This study demonstrates the major impact of cropping practice on T. urticae abundance and on the prey to predator ratio, whilst also emphasizing the importance of the surrounding vegetation as a source of natural enemies of phytophagous arthropods.",
keywords = "The Faculty of Science, biological control, Tetranychus urticae, Urtica dioica, Phytoseiidae, diversity, strawberry, cropping practice",
author = "Jacobsen, {Stine K.} and Moraes, {Gilberto J.} and Helle S{\o}rensen and Lene Sigsgaard",
year = "2019",
doi = "10.1016/j.agee.2018.11.004",
language = "English",
volume = "272",
pages = "1--9",
journal = "Applied Soil Ecology",
issn = "0929-1393",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Organic cropping practice decreases pest abundance and positively influences predator-prey interactions

AU - Jacobsen, Stine K.

AU - Moraes, Gilberto J.

AU - Sørensen, Helle

AU - Sigsgaard, Lene

PY - 2019

Y1 - 2019

N2 - Cropping practice influence arthropod species abundance and diversity in agroecosystems, thus impacting populations of insect pests and their natural enemies. A field study was conducted to investigate whether pest and natural enemy abundance was higher in organic compared with conventional strawberry fields, and whether the non-managed vegetation surrounding the field impacted natural enemy abundance and diversity in and around the field sites. The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), and predatory mites were sampled from strawberry leaflets and the leaves of wild herbaceous plants from the surrounding vegetation. Insect predators, hymenopteran parasitoids, spiders and herbivores were collected from the same habitats. Abundance of T. urticae was ten-fold higher in conventional compared to organic strawberry fields, whereas the ratio of spider mite to predatory mites was 9.5 times lower in organic compared with conventional strawberry fields. The 14 species of predatory mites identified were all from the family Phytoseiidae, and predominantly found on stinging nettle, Urtica dioica L. (Rosales: Urticaceae) (> 80% of individuals), in the surrounding vegetation. There was no significant effect of cropping practice on the density of insect predators and spiders, while the density of insect parasitoids and insect herbivores was higher in the organic compared to the conventional sites. Total species richness at the edge of organic fields and in the surrounding vegetation of both organic and conventional sites was higher than in the other sampling sites. This study demonstrates the major impact of cropping practice on T. urticae abundance and on the prey to predator ratio, whilst also emphasizing the importance of the surrounding vegetation as a source of natural enemies of phytophagous arthropods.

AB - Cropping practice influence arthropod species abundance and diversity in agroecosystems, thus impacting populations of insect pests and their natural enemies. A field study was conducted to investigate whether pest and natural enemy abundance was higher in organic compared with conventional strawberry fields, and whether the non-managed vegetation surrounding the field impacted natural enemy abundance and diversity in and around the field sites. The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), and predatory mites were sampled from strawberry leaflets and the leaves of wild herbaceous plants from the surrounding vegetation. Insect predators, hymenopteran parasitoids, spiders and herbivores were collected from the same habitats. Abundance of T. urticae was ten-fold higher in conventional compared to organic strawberry fields, whereas the ratio of spider mite to predatory mites was 9.5 times lower in organic compared with conventional strawberry fields. The 14 species of predatory mites identified were all from the family Phytoseiidae, and predominantly found on stinging nettle, Urtica dioica L. (Rosales: Urticaceae) (> 80% of individuals), in the surrounding vegetation. There was no significant effect of cropping practice on the density of insect predators and spiders, while the density of insect parasitoids and insect herbivores was higher in the organic compared to the conventional sites. Total species richness at the edge of organic fields and in the surrounding vegetation of both organic and conventional sites was higher than in the other sampling sites. This study demonstrates the major impact of cropping practice on T. urticae abundance and on the prey to predator ratio, whilst also emphasizing the importance of the surrounding vegetation as a source of natural enemies of phytophagous arthropods.

KW - The Faculty of Science

KW - biological control

KW - Tetranychus urticae

KW - Urtica dioica

KW - Phytoseiidae

KW - diversity

KW - strawberry

KW - cropping practice

U2 - 10.1016/j.agee.2018.11.004

DO - 10.1016/j.agee.2018.11.004

M3 - Journal article

VL - 272

SP - 1

EP - 9

JO - Applied Soil Ecology

JF - Applied Soil Ecology

SN - 0929-1393

ER -

ID: 209090772