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Pollinators, pests and yield—Multiple trade‐offs from insecticide use in a mass‐flowering crop.

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Title: Pollinators, pests and yield—Multiple trade‐offs from insecticide use in a mass‐flowering crop.
Authors: Knapp, Jessica L.1 (AUTHOR) jessica.knapp@biol.lu.se, Bates, Adam1 (AUTHOR), Jonsson, Ove2 (AUTHOR), Klatt, Björn1 (AUTHOR), Krausl, Theresia1,3 (AUTHOR), Sahlin, Ullrika3 (AUTHOR), Svensson, Glenn P.1 (AUTHOR), Rundlöf, Maj1 (AUTHOR)
Source: Journal of Applied Ecology. Sep2022, Vol. 59 Issue 9, p2419-2429. 11p.
Subjects: Pollinators, Insecticides, Insecticide application, Red clover, Pests, Crops
Abstract: Multiple trade‐offs likely occur between pesticide use, pollinators and yield (via crop flowers) in pollinator‐dependent, mass‐flowering crops (MFCs), causing potential conflict between conservation and agronomic goals. To date, no studies have looked at both outcomes within the same system, meaning win‐win solutions for pollinators and yield can only be inferred.Here, we outline a new framework to explore these trade‐offs, using red clover (Trifolium pratense) grown for seed production as an example. Specifically, we address how the insecticide thiacloprid affects densities of seed‐eating weevils (Protapion spp.), pollination rates, yield, floral resources and colony dynamics of the key pollinator, Bombus terrestris.Thiacloprid did not affect the amount of nectar provided by, or pollinator visitation to, red clover flowers but did reduce weevil density, correlating to increased yield and gross profit. In addition, colonies of B. terrestris significantly increased their weight and reproductive output in landscapes with (compared with without) red clover, regardless of insecticide use.Synthesis and applications. We propose a holistic conceptual framework to explore trade‐offs between pollinators, pesticides and yield that we believe to be essential for achieving conservation and agronomic goals. This framework applies to all insecticide‐treated mass‐flowering crops (MFCs) and can be adapted to include other ecological processes. Trialling the framework in our study system, we found that our focal insecticide, thiacloprid, improved red clover seed yield with no detected effects on its key pollinator, B. terrestris, and that the presence of red clover in the landscape can benefit pollinator populations. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Applied Ecology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: Pollinators, pests and yield—Multiple trade‐offs from insecticide use in a mass‐flowering crop.
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  Data: <searchLink fieldCode="AR" term="%22Knapp%2C+Jessica+L%2E%22">Knapp, Jessica L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jessica.knapp@biol.lu.se</i><br /><searchLink fieldCode="AR" term="%22Bates%2C+Adam%22">Bates, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jonsson%2C+Ove%22">Jonsson, Ove</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Klatt%2C+Björn%22">Klatt, Björn</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krausl%2C+Theresia%22">Krausl, Theresia</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sahlin%2C+Ullrika%22">Sahlin, Ullrika</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Svensson%2C+Glenn+P%2E%22">Svensson, Glenn P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rundlöf%2C+Maj%22">Rundlöf, Maj</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Applied+Ecology%22">Journal of Applied Ecology</searchLink>. Sep2022, Vol. 59 Issue 9, p2419-2429. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Pollinators%22">Pollinators</searchLink><br /><searchLink fieldCode="DE" term="%22Insecticides%22">Insecticides</searchLink><br /><searchLink fieldCode="DE" term="%22Insecticide+application%22">Insecticide application</searchLink><br /><searchLink fieldCode="DE" term="%22Red+clover%22">Red clover</searchLink><br /><searchLink fieldCode="DE" term="%22Pests%22">Pests</searchLink><br /><searchLink fieldCode="DE" term="%22Crops%22">Crops</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Multiple trade‐offs likely occur between pesticide use, pollinators and yield (via crop flowers) in pollinator‐dependent, mass‐flowering crops (MFCs), causing potential conflict between conservation and agronomic goals. To date, no studies have looked at both outcomes within the same system, meaning win‐win solutions for pollinators and yield can only be inferred.Here, we outline a new framework to explore these trade‐offs, using red clover (Trifolium pratense) grown for seed production as an example. Specifically, we address how the insecticide thiacloprid affects densities of seed‐eating weevils (Protapion spp.), pollination rates, yield, floral resources and colony dynamics of the key pollinator, Bombus terrestris.Thiacloprid did not affect the amount of nectar provided by, or pollinator visitation to, red clover flowers but did reduce weevil density, correlating to increased yield and gross profit. In addition, colonies of B. terrestris significantly increased their weight and reproductive output in landscapes with (compared with without) red clover, regardless of insecticide use.Synthesis and applications. We propose a holistic conceptual framework to explore trade‐offs between pollinators, pesticides and yield that we believe to be essential for achieving conservation and agronomic goals. This framework applies to all insecticide‐treated mass‐flowering crops (MFCs) and can be adapted to include other ecological processes. Trialling the framework in our study system, we found that our focal insecticide, thiacloprid, improved red clover seed yield with no detected effects on its key pollinator, B. terrestris, and that the presence of red clover in the landscape can benefit pollinator populations. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Applied Ecology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/1365-2664.14244
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 2419
    Subjects:
      – SubjectFull: Pollinators
        Type: general
      – SubjectFull: Insecticides
        Type: general
      – SubjectFull: Insecticide application
        Type: general
      – SubjectFull: Red clover
        Type: general
      – SubjectFull: Pests
        Type: general
      – SubjectFull: Crops
        Type: general
    Titles:
      – TitleFull: Pollinators, pests and yield—Multiple trade‐offs from insecticide use in a mass‐flowering crop.
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            – D: 01
              M: 09
              Text: Sep2022
              Type: published
              Y: 2022
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              Value: 59
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