Integrated modelling of efficient crop management strategies in response to economic damage potentials of the Western Corn Rootworm in Austria

Feusthuber, E.; Mitter, Hermine; Schönhart, Martin; Schmid, Erwin

doi:10.1016/j.agsy.2017.07.011

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…The adoption of these strategies is beneficial to growers as they have the best hopes of reducing yield loss. Additionally results by Feusthuber et al 39 indicate that crop rotations are economically more efficient for WCR control compared to insecticide applications, which is especially relevant at high crop yield loss levels from WCR infestation 39 .…”

Section: Discussionmentioning

confidence: 99%

Modelling the emergence dynamics of the western corn rootworm beetle (Diabrotica virgifera virgifera)

Jaksons

Falkner

Moltchanova

2022

Sci Rep

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The western corn rootworm is an invasive species to Europe and is a major agricultural pest that causes widespread economic and yield losses to maize producers. The Gompertz curve was originally used to model human population mortality. It is a sigmoidal curve where the beginning and end of a period shows the slowest time for growth, and adequately describes observed dynamics of many phenomena. We propose the use of the Gompertz function in a Bayesian Hierarchical framework to model the emergence dynamics of the western corn rootworm beetle. The proposed model includes the use of climatic variables to assess how weather can influence the observed dynamics. We apply the model to Austrian monitoring data collected in 2004–2015.

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Section: Discussionmentioning

confidence: 99%

Modelling the emergence dynamics of the western corn rootworm beetle (Diabrotica virgifera virgifera)

Jaksons

Falkner

Moltchanova

2022

Sci Rep

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“…They indicated that a large WCR population in a field combined with adverse weather conditions can result in total maize yield loss. As reported by Falkner et al (2019) [236], there are no official data on damage and yield loss. As the spatial variability in the economic damage potential of maize yield losses corresponds to the regional maize density, the frequency of maize cultivation is already regulated by law in Styria, where the WCR population is high.…”

Section: Wcr Population Level Damage and Management Practicesmentioning

confidence: 94%

“…Monitoring activities were carried out throughout Austria's maize-growing area, except for the Alps. Calculations by Feusthuber et al [236] show a large spatial variability in WCR damage potential on gross markets. They indicated that a large WCR population in a field combined with adverse weather conditions can result in total maize yield loss.…”

Section: Wcr Population Level Damage and Management Practicesmentioning

confidence: 97%

“…Models for efficient WCR management have been developed in Austria [236,238,239], Hungary [233], and Italy [244], showing that crop rotation restrictions can help to reduce WCR spread and abundance regardless of the climate change scenario considered. Therefore, the impact of climate change is limited compared with the impact of crop rotation restriction measures.…”

Section: Wcr Population Level Damage and Management Practicesmentioning

confidence: 99%

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Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Europe: Current Status and Sustainable Pest Management

Bažok

Lemić

Chiarini

et al. 2021

Insects

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Western corn rootworm (WCR), or Diabrotica virgifera virgifera LeConte, became a very serious quarantine maize pest in Europe in the mid-1990s. Between 1995 and 2010, European countries were involved in international projects to share information and plan common research for integrated pest management (IPM) implementation. Since 2011, however, common efforts have declined, and an overview of WCR population spread, density, and research is in serious need of update. Therefore, we retained that it was necessary to (1) summarize the research activities carried out in the last 12 years in various countries and the research topics addressed, and analyze how these activities have contributed to IPM for WCR and (2) present the current distribution of WCR in the EU and analyze the current population levels in different European countries, focusing on different management strategies. A review of scientific papers published from 2008 to 2020, in addition to direct interviews with experts in charge of WCR management in a range of European countries, was conducted. Over the past 12 years, scientists in Europe have continued their research activities to investigate various aspects of WCR management by implementing several approaches to WCR control. A considerable amount of new knowledge has been produced, contributing to the development of pest management strategies applicable in EU farming systems. Among the 10 EU countries analyzed, there is no country reporting economic damage on a large scale. Thanks to intensive research leading to specific agricultural practices and the EU Common Agricultural Policy, there are crop-rotation-based solutions that can adequately control this pest avoiding insecticide use.

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“…Adult beetles can also cause some damage in maize by feeding on pollen and silk, hindering fertilization [16]. In areas with high pest densities, yield loss can be significant [17] and become particularly serious when combined with adverse weather conditions [18][19][20]. To manage this pest and to prevent damage and yield losses, several control options are available to farmers.…”

Section: Introductionmentioning

confidence: 99%

Limited Influence of Abiotic and Biotic Factors on the Efficacy of Soil Insecticides and Entomopathogenic Nematodes when Managing the Maize Pest Diabrotica v. virgifera (Coleoptera: Chrysomelidae)

et al. 2022

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Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) is a serious pest that infects maize. Insecticides or entomopathogenic nematodes are used to control the root-damaging larvae. However, such treatments are reportedly inconsistent in terms of efficacy under farming conditions. To better understand the reasons behind these inconsistencies, we studied the control efficacy of seed coatings, such as clothianidin; granular soil insecticides, such as cypermethrin and tefluthrin; and fluid-applied entomopathogenic nematodes, such as Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae). We assessed the influence of 12 biotic and 20 abiotic factors on the reduction of Diabrotica v. virgifera populations and on the prevention of root damage in 20 field-scale experiments in Hungary between 2010 and 2020. Results confirmed that all treatment types are able to control pest populations and prevent root damage, but with high variability. Our analyses showed that most investigated factors, for example, air temperature, most soil parameters, and pest infestation levels, did not influence the efficacy of the treatments. The efficacy of clothianidin in preventing root damage decreased slightly with increasing soil bulk density but improved with late maize sowing, and therefore late treatment, as well as with increasing soil moisture in July. The efficacy of cypermethrin in preventing damage improved slightly with increasing clay content in the soil. Tefluthrin was slightly less effective in reducing D. v. virgifera with increasing soil moisture in June. However, all these factorial influences were minor in their absolute effects. Surprisingly, none of the investigated factors seemed to influence the efficacy of H. bacteriophora. In conclusion, the efficacy of chemical and biological treatments against this soil pest remains difficult to predict under farming conditions.

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Integrated modelling of efficient crop management strategies in response to economic damage potentials of the Western Corn Rootworm in Austria

Cited by 18 publications

References 39 publications

Modelling the emergence dynamics of the western corn rootworm beetle (Diabrotica virgifera virgifera)

Modelling the emergence dynamics of the western corn rootworm beetle (Diabrotica virgifera virgifera)

Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) in Europe: Current Status and Sustainable Pest Management

Limited Influence of Abiotic and Biotic Factors on the Efficacy of Soil Insecticides and Entomopathogenic Nematodes when Managing the Maize Pest Diabrotica v. virgifera (Coleoptera: Chrysomelidae)

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