Generational growth rate estimates of Diabrotica virgifera virgifera populations (Coleoptera: Chrysomelidae)

Márk Szalai, Judit Papp Komáromi, Renata Bažok, Jasminka Igrc Barčić, J. Kiss, S. Toepfer

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Modelling population dynamics of the maize pest Diabrotica virgifera virgifera LeConte (western corn rootworm; Coleoptera: Chrysomelidae) requires knowledge on the growth rate (=net reproductive rate) of the species. We investigated the generational (=annual) growth rate of D. v. virgifera in isolated maize fields in southern Hungary and eastern Croatia over several years. The population densities of D. v. virgifera were assessed by absolute counts of emerging adults in 90 gauze cages per study field. Emergence ranged from 1.3 to 30.7 adults per m2 in continuous maize field sections, and from 0.3 to 5.1 adults per m2 in adjacent first-year maize sections. The annual growth rates of D. v. virgifera ranged from 0.5 to 13, and averaged in close to 4. These experimentally assessed growth rates could complement growth estimates in population dynamic models, particularly those for forecasting the population growth to economic thresholds or for estimating population build-ups after new introductions of this alien species in Europe. As an example, the determined growth rate was used to estimate that the first documented successful introduction of this species into Europe occurred between 1979 and 1984, which is 8-13 years before the detection of this species and its larval damage in maize fields near Belgrade, Serbia, in 1992.

Original languageEnglish
Pages (from-to)133-142
Number of pages10
JournalJournal of Pest Science
Volume84
Issue number1
DOIs
Publication statusPublished - Mar 2011

Fingerprint

Diabrotica virgifera virgifera
Chrysomelidae
Coleoptera
corn
population dynamics
economic threshold
Serbia
Croatia
Hungary
dynamic models
eclosion
population growth
complement
cages
population density
pests

Keywords

  • Emergence cages
  • Invasion
  • Net reproductive rate
  • Population dynamics
  • Western corn rootworm
  • Zea mays

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Generational growth rate estimates of Diabrotica virgifera virgifera populations (Coleoptera : Chrysomelidae). / Szalai, Márk; Komáromi, Judit Papp; Bažok, Renata; Barčić, Jasminka Igrc; Kiss, J.; Toepfer, S.

In: Journal of Pest Science, Vol. 84, No. 1, 03.2011, p. 133-142.

Research output: Contribution to journalArticle

Szalai, Márk ; Komáromi, Judit Papp ; Bažok, Renata ; Barčić, Jasminka Igrc ; Kiss, J. ; Toepfer, S. / Generational growth rate estimates of Diabrotica virgifera virgifera populations (Coleoptera : Chrysomelidae). In: Journal of Pest Science. 2011 ; Vol. 84, No. 1. pp. 133-142.
@article{07f8339d777c44218e2f54d045739468,
title = "Generational growth rate estimates of Diabrotica virgifera virgifera populations (Coleoptera: Chrysomelidae)",
abstract = "Modelling population dynamics of the maize pest Diabrotica virgifera virgifera LeConte (western corn rootworm; Coleoptera: Chrysomelidae) requires knowledge on the growth rate (=net reproductive rate) of the species. We investigated the generational (=annual) growth rate of D. v. virgifera in isolated maize fields in southern Hungary and eastern Croatia over several years. The population densities of D. v. virgifera were assessed by absolute counts of emerging adults in 90 gauze cages per study field. Emergence ranged from 1.3 to 30.7 adults per m2 in continuous maize field sections, and from 0.3 to 5.1 adults per m2 in adjacent first-year maize sections. The annual growth rates of D. v. virgifera ranged from 0.5 to 13, and averaged in close to 4. These experimentally assessed growth rates could complement growth estimates in population dynamic models, particularly those for forecasting the population growth to economic thresholds or for estimating population build-ups after new introductions of this alien species in Europe. As an example, the determined growth rate was used to estimate that the first documented successful introduction of this species into Europe occurred between 1979 and 1984, which is 8-13 years before the detection of this species and its larval damage in maize fields near Belgrade, Serbia, in 1992.",
keywords = "Emergence cages, Invasion, Net reproductive rate, Population dynamics, Western corn rootworm, Zea mays",
author = "M{\'a}rk Szalai and Kom{\'a}romi, {Judit Papp} and Renata Bažok and Barčić, {Jasminka Igrc} and J. Kiss and S. Toepfer",
year = "2011",
month = "3",
doi = "10.1007/s10340-010-0336-z",
language = "English",
volume = "84",
pages = "133--142",
journal = "Journal of Pest Science",
issn = "1612-4758",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Generational growth rate estimates of Diabrotica virgifera virgifera populations (Coleoptera

T2 - Chrysomelidae)

AU - Szalai, Márk

AU - Komáromi, Judit Papp

AU - Bažok, Renata

AU - Barčić, Jasminka Igrc

AU - Kiss, J.

AU - Toepfer, S.

PY - 2011/3

Y1 - 2011/3

N2 - Modelling population dynamics of the maize pest Diabrotica virgifera virgifera LeConte (western corn rootworm; Coleoptera: Chrysomelidae) requires knowledge on the growth rate (=net reproductive rate) of the species. We investigated the generational (=annual) growth rate of D. v. virgifera in isolated maize fields in southern Hungary and eastern Croatia over several years. The population densities of D. v. virgifera were assessed by absolute counts of emerging adults in 90 gauze cages per study field. Emergence ranged from 1.3 to 30.7 adults per m2 in continuous maize field sections, and from 0.3 to 5.1 adults per m2 in adjacent first-year maize sections. The annual growth rates of D. v. virgifera ranged from 0.5 to 13, and averaged in close to 4. These experimentally assessed growth rates could complement growth estimates in population dynamic models, particularly those for forecasting the population growth to economic thresholds or for estimating population build-ups after new introductions of this alien species in Europe. As an example, the determined growth rate was used to estimate that the first documented successful introduction of this species into Europe occurred between 1979 and 1984, which is 8-13 years before the detection of this species and its larval damage in maize fields near Belgrade, Serbia, in 1992.

AB - Modelling population dynamics of the maize pest Diabrotica virgifera virgifera LeConte (western corn rootworm; Coleoptera: Chrysomelidae) requires knowledge on the growth rate (=net reproductive rate) of the species. We investigated the generational (=annual) growth rate of D. v. virgifera in isolated maize fields in southern Hungary and eastern Croatia over several years. The population densities of D. v. virgifera were assessed by absolute counts of emerging adults in 90 gauze cages per study field. Emergence ranged from 1.3 to 30.7 adults per m2 in continuous maize field sections, and from 0.3 to 5.1 adults per m2 in adjacent first-year maize sections. The annual growth rates of D. v. virgifera ranged from 0.5 to 13, and averaged in close to 4. These experimentally assessed growth rates could complement growth estimates in population dynamic models, particularly those for forecasting the population growth to economic thresholds or for estimating population build-ups after new introductions of this alien species in Europe. As an example, the determined growth rate was used to estimate that the first documented successful introduction of this species into Europe occurred between 1979 and 1984, which is 8-13 years before the detection of this species and its larval damage in maize fields near Belgrade, Serbia, in 1992.

KW - Emergence cages

KW - Invasion

KW - Net reproductive rate

KW - Population dynamics

KW - Western corn rootworm

KW - Zea mays

UR - http://www.scopus.com/inward/record.url?scp=79952070574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952070574&partnerID=8YFLogxK

U2 - 10.1007/s10340-010-0336-z

DO - 10.1007/s10340-010-0336-z

M3 - Article

AN - SCOPUS:79952070574

VL - 84

SP - 133

EP - 142

JO - Journal of Pest Science

JF - Journal of Pest Science

SN - 1612-4758

IS - 1

ER -