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Towards Integrated Pest Management in Red Clover Seed Production

Lundin, Ola; Rundlof, Maj; Smith, Henrik LU and Bommarco, Riccardo (2012) In Journal of Economic Entomology 105(5). p.1620-1628
Abstract
The development of integrated pest management is hampered by lack of information on how insect pest abundances relate to yield losses, and how pests are affected by control measures. In this study, we develop integrated pest management tactics for Apion spp. weevils (Coleoptera: Brentidae) in seed production of red clover, Trifolium pratense L. We tested a method to forecast pest damage, quantified the relationship between pest abundance and yield, and evaluated chemical and biological pest control in 29 Swedish red clover fields in 2008 and 2011. Pest inflorescence abundance, which had a highly negative effect on yield, could be predicted with pan trap catches of adult pests. In 2008, chemical control with typically one application of... (More)
The development of integrated pest management is hampered by lack of information on how insect pest abundances relate to yield losses, and how pests are affected by control measures. In this study, we develop integrated pest management tactics for Apion spp. weevils (Coleoptera: Brentidae) in seed production of red clover, Trifolium pratense L. We tested a method to forecast pest damage, quantified the relationship between pest abundance and yield, and evaluated chemical and biological pest control in 29 Swedish red clover fields in 2008 and 2011. Pest inflorescence abundance, which had a highly negative effect on yield, could be predicted with pan trap catches of adult pests. In 2008, chemical control with typically one application of pyrethroids was ineffective both in decreasing pest abundances and in increasing yields. In 2011, when chemical control included applications of the neonicotinoid thiacloprid, pest abundances decreased and yields increased considerably in treated field zones. A post hoc analysis indicated that using pyrethroids in addition to thiacloprid was largely redundant. Infestation rates by parasitoids was higher and reached average levels of around 40% in insecticide treated field zones in 2011, which is a level of interest for biological pest control. Based on the data presented, an economic threshold for chemical control is developed, and guidelines are provided on minimum effective chemical pest control. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Apion spp., thiacloprid, biological control, Spintherus dubius, Trifolium pratense
in
Journal of Economic Entomology
volume
105
issue
5
pages
1620 - 1628
publisher
Entomological Society of America
external identifiers
  • wos:000312443000019
  • scopus:84868110260
ISSN
0022-0493
DOI
10.1603/EC12179
language
English
LU publication?
yes
id
376fd2c6-1162-44a6-bda4-61264943aea8 (old id 3366360)
date added to LUP
2013-02-01 08:41:13
date last changed
2017-06-18 03:54:47
@article{376fd2c6-1162-44a6-bda4-61264943aea8,
  abstract     = {The development of integrated pest management is hampered by lack of information on how insect pest abundances relate to yield losses, and how pests are affected by control measures. In this study, we develop integrated pest management tactics for Apion spp. weevils (Coleoptera: Brentidae) in seed production of red clover, Trifolium pratense L. We tested a method to forecast pest damage, quantified the relationship between pest abundance and yield, and evaluated chemical and biological pest control in 29 Swedish red clover fields in 2008 and 2011. Pest inflorescence abundance, which had a highly negative effect on yield, could be predicted with pan trap catches of adult pests. In 2008, chemical control with typically one application of pyrethroids was ineffective both in decreasing pest abundances and in increasing yields. In 2011, when chemical control included applications of the neonicotinoid thiacloprid, pest abundances decreased and yields increased considerably in treated field zones. A post hoc analysis indicated that using pyrethroids in addition to thiacloprid was largely redundant. Infestation rates by parasitoids was higher and reached average levels of around 40% in insecticide treated field zones in 2011, which is a level of interest for biological pest control. Based on the data presented, an economic threshold for chemical control is developed, and guidelines are provided on minimum effective chemical pest control.},
  author       = {Lundin, Ola and Rundlof, Maj and Smith, Henrik and Bommarco, Riccardo},
  issn         = {0022-0493},
  keyword      = {Apion spp.,thiacloprid,biological control,Spintherus dubius,Trifolium pratense},
  language     = {eng},
  number       = {5},
  pages        = {1620--1628},
  publisher    = {Entomological Society of America},
  series       = {Journal of Economic Entomology},
  title        = {Towards Integrated Pest Management in Red Clover Seed Production},
  url          = {http://dx.doi.org/10.1603/EC12179},
  volume       = {105},
  year         = {2012},
}