About: Resistance to imidacloprid (Confidor 70 WG) in damson hop aphid (Phorodon humuli Schrank) on Czech hops     Goto   Sponge   NotDistinct   Permalink

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  • Contemporary hop protection against damson-hop aphid (Phorodon humuli Schrank) in Czech Republic has been for almost fifteen years nearly entirely based on the application of imidacloprid as a key aphicide. In the years with slighter to average intensity of migration one treatment by imidacloprid is usually sufficient enough to control this dangerous pest. In spite of its still good efficiency there have been some hop gardens where aphids survive after imidacloprid application perhaps as a result of the previous under-dosing. To investigate the tests in Potter tower. Values LC 50 of field strains were compared with the same ones of a susceptible strain so as to be able to determine resistance factors (RF). Obtained data show the resistance in damson-hop aphid feeding on Czech hops. Nevertheless, biological efficiency for practical hops protection against P. humuli although there is an urgent need for a new efficient aphicide.
  • Contemporary hop protection against damson-hop aphid (Phorodon humuli Schrank) in Czech Republic has been for almost fifteen years nearly entirely based on the application of imidacloprid as a key aphicide. In the years with slighter to average intensity of migration one treatment by imidacloprid is usually sufficient enough to control this dangerous pest. In spite of its still good efficiency there have been some hop gardens where aphids survive after imidacloprid application perhaps as a result of the previous under-dosing. To investigate the tests in Potter tower. Values LC 50 of field strains were compared with the same ones of a susceptible strain so as to be able to determine resistance factors (RF). Obtained data show the resistance in damson-hop aphid feeding on Czech hops. Nevertheless, biological efficiency for practical hops protection against P. humuli although there is an urgent need for a new efficient aphicide. (en)
  • Současná ochrana chmele proti mšici chmelové(Phorodon humuli Schrank) v ČR již téměř patnáct let závisí na aplikaci imidaclopridu jako klíčového aficidu. V letech se slabou až průměrnou intenzitou přeletu postačuje většinou jedna aplikace pro kontrolu tohoto nebezpečného škůdce. Přestože imidacloprid stále vykazuje dobrou účinnost, na některých chmelnicích dochází po jeho aplikaci k přežívání mšic, což je patrně důsledek aplikace snížených dávek přípravku. Toto jsme zkoumali v laboratorních testech v Pottrově věži. Hodnoty LC 50 polních populací byly porovnávány s hodnotou tohoto ukazatele u citlivého kmene. Získané výsledky prokázaly rezistenci mšice chmelové v ČR. I přes stále dostačující účinnost imidaclopridu na mšici chmelovou, se v praxi již projevuje naléhavá potřeba nového účinného aficidu. (cs)
Title
  • Resistance to imidacloprid (Confidor 70 WG) in damson hop aphid (Phorodon humuli Schrank) on Czech hops
  • Resistance to imidacloprid (Confidor 70 WG) in damson hop aphid (Phorodon humuli Schrank) on Czech hops (en)
  • Rezistence mšice chmelové k imidaclopridu (Confidor 70WG) na českých chmelích (cs)
skos:prefLabel
  • Resistance to imidacloprid (Confidor 70 WG) in damson hop aphid (Phorodon humuli Schrank) on Czech hops
  • Resistance to imidacloprid (Confidor 70 WG) in damson hop aphid (Phorodon humuli Schrank) on Czech hops (en)
  • Rezistence mšice chmelové k imidaclopridu (Confidor 70WG) na českých chmelích (cs)
skos:notation
  • RIV/14864347:_____/07:8P004783!RIV08-MZE-14864347
http://linked.open.../vavai/riv/strany
  • 101-104
http://linked.open...avai/riv/aktivita
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  • P(1B44063)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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  • 447554
http://linked.open...ai/riv/idVysledku
  • RIV/14864347:_____/07:8P004783
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • damson hop aphid; field and susceptible strains; laboratory tests; Potter tower; LC 50; resistance factors (RF); resistance; biological efficiecy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [191901DA0D39]
http://linked.open...v/mistoKonaniAkce
  • Tettnang
http://linked.open...i/riv/mistoVydani
  • Neuveden
http://linked.open...i/riv/nazevZdroje
  • Proceeding of the Scientific Commision
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Vostřel, Josef
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 1814-2192
number of pages
http://purl.org/ne...btex#hasPublisher
  • Scientific Commision of International Hop Grower´s Convention
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