Exceeding the threshold value for Trioza apicalis Förster 1848 in carrot fields did not cause damage as revealed during monitoring in Germany from 2017–2020

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • J. Sauer
  • A. Dewert
  • P. Hondelmann
  • R. Meyhöfer
  • M. Hommes
  • H. Buck
  • C. Ulrichs
  • U. Vogler

Externe Organisationen

  • Julius Kühn-Institut (JKI) Bundesforschungsinstitut für Kulturpflanzen
  • Humboldt-Universität zu Berlin (HU Berlin)
  • Öko-Beratungsgesellschaft mbH
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)865-870
Seitenumfang6
FachzeitschriftJournal of Plant Diseases and Protection
Jahrgang128
Ausgabenummer3
Frühes Online-Datum25 März 2021
PublikationsstatusVeröffentlicht - Juni 2021

Abstract

The carrot psyllid Trioza apicalis Förster 1848 is a carrot pest in Europe that can cause serious damages in case of massive occurrence. Damages up to a total loss of yield have been reported from Scandinavian countries but also from Switzerland. The action threshold to control the pest with chemical pesticides is 0.2 T. apicalis per day and trap caught by sticky traps. We investigated the number of T. apicalis with sticky traps on carrot fields of the study regions Lüneburg/Uelzen and Hameln/Bad Pyrmont in Germany, during the period 2017–2020. The number of T. apicalis caught was generally very low in both study regions. On several fields in successive weeks almost no individuals were found in the study region Hameln/Bad Pyrmont. In Lüneburg/Uelzen was at least one field each year where the number of carrot psyllid was clearly higher than in all other fields and exceeded the threshold level. Surprisingly on carrot fields in close proximity to carrot fields from the previous year, the T. apicalis numbers were only slightly increased. Nonetheless, no loss of yield was reported for any of the fields in the four years of the study, although the generally defined threshold has been exceeded on many of the investigated carrot fields.

ASJC Scopus Sachgebiete

Zitieren

Exceeding the threshold value for Trioza apicalis Förster 1848 in carrot fields did not cause damage as revealed during monitoring in Germany from 2017–2020. / Sauer, J.; Dewert, A.; Hondelmann, P. et al.
in: Journal of Plant Diseases and Protection, Jahrgang 128, Nr. 3, 06.2021, S. 865-870.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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title = "Exceeding the threshold value for Trioza apicalis F{\"o}rster 1848 in carrot fields did not cause damage as revealed during monitoring in Germany from 2017–2020",
abstract = "The carrot psyllid Trioza apicalis F{\"o}rster 1848 is a carrot pest in Europe that can cause serious damages in case of massive occurrence. Damages up to a total loss of yield have been reported from Scandinavian countries but also from Switzerland. The action threshold to control the pest with chemical pesticides is 0.2 T. apicalis per day and trap caught by sticky traps. We investigated the number of T. apicalis with sticky traps on carrot fields of the study regions L{\"u}neburg/Uelzen and Hameln/Bad Pyrmont in Germany, during the period 2017–2020. The number of T. apicalis caught was generally very low in both study regions. On several fields in successive weeks almost no individuals were found in the study region Hameln/Bad Pyrmont. In L{\"u}neburg/Uelzen was at least one field each year where the number of carrot psyllid was clearly higher than in all other fields and exceeded the threshold level. Surprisingly on carrot fields in close proximity to carrot fields from the previous year, the T. apicalis numbers were only slightly increased. Nonetheless, no loss of yield was reported for any of the fields in the four years of the study, although the generally defined threshold has been exceeded on many of the investigated carrot fields.",
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author = "J. Sauer and A. Dewert and P. Hondelmann and R. Meyh{\"o}fer and M. Hommes and H. Buck and C. Ulrichs and U. Vogler",
note = "Funding Information: The authors kindly thank the farmers involved for making their fields available for field experiments and Manuel Holtgrewe for helping preparing the figures. The project is supported by funds of the Federal Ministry of Food and Agriculture (BMEL) based on a decision of the parliament of the Federal Republic of Germany via the Federal Office for Agriculture and Food (BLE) under the Federal Program for Ecological Farming and Other Forms of Sustainable Agriculture.",
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AU - Dewert, A.

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AU - Meyhöfer, R.

AU - Hommes, M.

AU - Buck, H.

AU - Ulrichs, C.

AU - Vogler, U.

N1 - Funding Information: The authors kindly thank the farmers involved for making their fields available for field experiments and Manuel Holtgrewe for helping preparing the figures. The project is supported by funds of the Federal Ministry of Food and Agriculture (BMEL) based on a decision of the parliament of the Federal Republic of Germany via the Federal Office for Agriculture and Food (BLE) under the Federal Program for Ecological Farming and Other Forms of Sustainable Agriculture.

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N2 - The carrot psyllid Trioza apicalis Förster 1848 is a carrot pest in Europe that can cause serious damages in case of massive occurrence. Damages up to a total loss of yield have been reported from Scandinavian countries but also from Switzerland. The action threshold to control the pest with chemical pesticides is 0.2 T. apicalis per day and trap caught by sticky traps. We investigated the number of T. apicalis with sticky traps on carrot fields of the study regions Lüneburg/Uelzen and Hameln/Bad Pyrmont in Germany, during the period 2017–2020. The number of T. apicalis caught was generally very low in both study regions. On several fields in successive weeks almost no individuals were found in the study region Hameln/Bad Pyrmont. In Lüneburg/Uelzen was at least one field each year where the number of carrot psyllid was clearly higher than in all other fields and exceeded the threshold level. Surprisingly on carrot fields in close proximity to carrot fields from the previous year, the T. apicalis numbers were only slightly increased. Nonetheless, no loss of yield was reported for any of the fields in the four years of the study, although the generally defined threshold has been exceeded on many of the investigated carrot fields.

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