Imperial College London
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ProfessorJasonTylianakis

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Visiting Professor
 
 
 
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j.tylianakis

 
 
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Location

 

Centre for Population BiologySilwood Park

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Summary

 

Publications

Citation

BibTex format

@article{Tomasetto:2017:10.1073/pnas.1618416114,
author = {Tomasetto, F and Tylianakis, JM and Reale, M and Wratten, SD and Goldson, SL},
doi = {10.1073/pnas.1618416114},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
pages = {3885--3890},
title = {Intensified agriculture favors evolved resistance to biological control},
url = {http://dx.doi.org/10.1073/pnas.1618416114},
volume = {114},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Increased  regulation  of  chemical  pesticides  and  rapid  evolutionof  pesticide  resistance  have  increased  calls  for  sustainable  pestmanagement. Biological control offers sustainable pest suppres-sion,  partly  because  evolution  of  resistance  to  predators  andparasitoids is prevented by several factors (e.g., spatial or tempo-ral refuges from attacks, reciprocal evolution by control agents,and  contrasting  selection  pressures  from  other  enemy  species).However,  evolution  of  resistance  may  become  more  probableas agricultural intensification reduces the availability of refugesand diversity of enemy species, or if control agents have geneticbarriers  to  evolution.  Here,  we  use  21  years  of  field  data  from196  sites  across  New  Zealand  to  show  that  parasitism  of  a  keypasture pest (Listronotus bonariensis, Argentine stem weevil) byan  introduced  parasitoid  (Microctonus  hyperodae)  was  initiallynationally successful, but then declined by 44% (leading to pasturedamage of c. NZD$160m p.a.). This decline was not attributable toparasitoid numbers released, elevation or local climatic variables atsample locations. Rather, in all locations the decline began 7 years(14 host generations) following parasitoid introduction, despite re-leases being staggered across locations in different years. Finally,we  demonstrate  experimentally  that  declining  parasitism  ratesoccurred in ryegrassLolium perenne, which is grown nationwide inhigh-intensity pastures, but not in adjacent plots of a less-commonpasture grass (Lolium multiflorum), indicating that resistance toparasitism is host-plant dependent. We conclude that low plantand  enemy  biodiversity  in  intensive  large-scale  agriculture  mayfacilitate the evolution of host resistance by pests and threatenthe long-term viability of biological control.
AU  - Tomasetto,F
AU  - Tylianakis,JM
AU  - Reale,M
AU  - Wratten,SD
AU  - Goldson,SL
DO  - 10.1073/pnas.1618416114
EP  - 3890
PY  - 2017///
SN  - 1091-6490
SP  - 3885
TI  - Intensified agriculture favors evolved resistance to biological control
T2  - Proceedings of the National Academy of Sciences of the United States of America
UR  - http://dx.doi.org/10.1073/pnas.1618416114
UR  - http://hdl.handle.net/10044/1/44679
VL  - 114
ER  -
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