Insecticides promote viral outbreaks by altering herbivore competition

Huipeng Pan, Evan L. Preisser, Dong Chu, Shaoli Wang, Qingjun Wu, Yves Carriere, Xuguo Zhou, Youjun Zhang

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

While the management of biological invasions is often characterized by a series of single-species decisions, invasive species exist within larger food webs. These biotic interactions can alter the impact of control/eradication programs and may cause suppression efforts to inadvertently facilitate invasion spread and impact. We document the rapid replacement of the invasive Bemisia Middle East-Asia Minor I (MEAM1) cryptic biotype by the cryptic Mediterranean (MED) biotype throughout China and demonstrate that MED is more tolerant of insecticides and a better vector of tomato yellow leaf curl virus (TYLCV) than MEAM1. While MEAM1 usually excludes MED under natural conditions, insecticide application reverses the MEAM1-MED competitive hierarchy and allows MED to exclude MEAM1. The insecticide-mediated success of MED has led to TYLCV outbreaks throughout China. Our work strongly supports the hypothesis that insecticide use in China reverses the MEAM1-MED competitive hierarchy and allows MED to displace MEAM1 in managed landscapes. By promoting the dominance of a Bemisia species that is a competent viral vector, insecticides thus increase the spread and impact of TYLCV in heterogeneous agroecosystems.

Original languageEnglish (US)
Pages (from-to)1585-1595
Number of pages11
JournalEcological Applications
Volume25
Issue number6
StatePublished - Sep 1 2015

Fingerprint

insecticide
herbivore
virus
biotype
biological invasion
agricultural ecosystem
invasive species
food web
replacement

Keywords

  • Agriculture
  • Bemisia tabaci
  • Biological invasions
  • Competitive displacement
  • Insecticides
  • Mediterranean (MED)
  • Middle East-Asia Minor I (MEAM1)
  • Plant virus
  • Tomato yellow leaf curl virus (TYLCV)

ASJC Scopus subject areas

  • Ecology

Cite this

Pan, H., Preisser, E. L., Chu, D., Wang, S., Wu, Q., Carriere, Y., ... Zhang, Y. (2015). Insecticides promote viral outbreaks by altering herbivore competition. Ecological Applications, 25(6), 1585-1595.

Insecticides promote viral outbreaks by altering herbivore competition. / Pan, Huipeng; Preisser, Evan L.; Chu, Dong; Wang, Shaoli; Wu, Qingjun; Carriere, Yves; Zhou, Xuguo; Zhang, Youjun.

In: Ecological Applications, Vol. 25, No. 6, 01.09.2015, p. 1585-1595.

Research output: Contribution to journalArticle

Pan, H, Preisser, EL, Chu, D, Wang, S, Wu, Q, Carriere, Y, Zhou, X & Zhang, Y 2015, 'Insecticides promote viral outbreaks by altering herbivore competition', Ecological Applications, vol. 25, no. 6, pp. 1585-1595.
Pan H, Preisser EL, Chu D, Wang S, Wu Q, Carriere Y et al. Insecticides promote viral outbreaks by altering herbivore competition. Ecological Applications. 2015 Sep 1;25(6):1585-1595.
Pan, Huipeng ; Preisser, Evan L. ; Chu, Dong ; Wang, Shaoli ; Wu, Qingjun ; Carriere, Yves ; Zhou, Xuguo ; Zhang, Youjun. / Insecticides promote viral outbreaks by altering herbivore competition. In: Ecological Applications. 2015 ; Vol. 25, No. 6. pp. 1585-1595.
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