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Agricultural management reduces emergence of pollen beetle parasitoids

Hanson, Helena LU ; Smith, Henrik LU and Hedlund, Katarina LU (2015) In Agriculture, Ecosystems & Environment 205. p.9-14
Abstract
Natural enemies such as predatory arthropods and parasitoids have the potential to suppress pest species and provide the ecosystem service biological control. When predicting the potential of biological control in agriculture it is important to give evidence on how agricultural management influence the abundance and functions of the natural enemies. In this study we examined whether managements practices as insecticide application and different tillage regimes, can influence biological control of a herbivorous pest on oilseed rape (Brassica napus L.). The endoparasitoids Phradis interstitialis Thomson and Tersilochus heterocerus Thomson were studied as they are important for the biological control of the pollen beetle (Meligethes aeneus... (More)
Natural enemies such as predatory arthropods and parasitoids have the potential to suppress pest species and provide the ecosystem service biological control. When predicting the potential of biological control in agriculture it is important to give evidence on how agricultural management influence the abundance and functions of the natural enemies. In this study we examined whether managements practices as insecticide application and different tillage regimes, can influence biological control of a herbivorous pest on oilseed rape (Brassica napus L.). The endoparasitoids Phradis interstitialis Thomson and Tersilochus heterocerus Thomson were studied as they are important for the biological control of the pollen beetle (Meligethes aeneus F.) which is a common pest on oilseed rape in Europe. The number of emerging female parasitoids was quantified by capturing the parasitoids in emergence tents from fields where the oilseed rape plants were grown the previous year. The number of emerging P. interstitialis and T. heterocerus were significantly reduced in insecticide treated fields, but the tillage regimes had no effect on the number of emerging females of either parasitoid species. We conclude that when predicting the biological control potential by pollen beetle parasitoids in agricultural landscapes it is important to consider insecticide treatment of former oilseed rape fields as that can influence population densities at the landscape scale the following year. (C) 2015 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biological control, Emergence tents, Natural pest control, Oilseed rape, Pest, Pesticides, Tillage
in
Agriculture, Ecosystems & Environment
volume
205
pages
9 - 14
publisher
Elsevier
external identifiers
  • wos:000353748500002
  • scopus:84924620548
ISSN
1873-2305
DOI
10.1016/j.agee.2015.03.001
language
English
LU publication?
yes
id
6aaa7e03-202c-46e0-91aa-1ac26da5e497 (old id 7432905)
date added to LUP
2015-06-24 14:24:07
date last changed
2017-04-09 04:10:52
@article{6aaa7e03-202c-46e0-91aa-1ac26da5e497,
  abstract     = {Natural enemies such as predatory arthropods and parasitoids have the potential to suppress pest species and provide the ecosystem service biological control. When predicting the potential of biological control in agriculture it is important to give evidence on how agricultural management influence the abundance and functions of the natural enemies. In this study we examined whether managements practices as insecticide application and different tillage regimes, can influence biological control of a herbivorous pest on oilseed rape (Brassica napus L.). The endoparasitoids Phradis interstitialis Thomson and Tersilochus heterocerus Thomson were studied as they are important for the biological control of the pollen beetle (Meligethes aeneus F.) which is a common pest on oilseed rape in Europe. The number of emerging female parasitoids was quantified by capturing the parasitoids in emergence tents from fields where the oilseed rape plants were grown the previous year. The number of emerging P. interstitialis and T. heterocerus were significantly reduced in insecticide treated fields, but the tillage regimes had no effect on the number of emerging females of either parasitoid species. We conclude that when predicting the biological control potential by pollen beetle parasitoids in agricultural landscapes it is important to consider insecticide treatment of former oilseed rape fields as that can influence population densities at the landscape scale the following year. (C) 2015 Elsevier B.V. All rights reserved.},
  author       = {Hanson, Helena and Smith, Henrik and Hedlund, Katarina},
  issn         = {1873-2305},
  keyword      = {Biological control,Emergence tents,Natural pest control,Oilseed rape,Pest,Pesticides,Tillage},
  language     = {eng},
  pages        = {9--14},
  publisher    = {Elsevier},
  series       = {Agriculture, Ecosystems & Environment},
  title        = {Agricultural management reduces emergence of pollen beetle parasitoids},
  url          = {http://dx.doi.org/10.1016/j.agee.2015.03.001},
  volume       = {205},
  year         = {2015},
}