Propargite resistance in two-spotted spider mite (Tetranychus urticae Koch) on Czech hops

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F14864347%3A_____%2F09%3A%230000378" target="_blank" >RIV/14864347:_____/09:#0000378 - isvavai.cz</a>
Result on the web
<a href="http://www.actahort.org/books/848/848_18.htm" target="_blank" >http://www.actahort.org/books/848/848_18.htm</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Propargite resistance in two-spotted spider mite (Tetranychus urticae Koch) on Czech hops
Original language description
Two-spotted spider mite (Tetranychus urticae Koch) along with damson hop aphid (Phorodon humuli Schrank) are the key pests of hops in the Czech Republic. Tetranychus urticae can seriously damage hop plants especially in warm dry weather. Under such conditions, control becomes very difficult. Contemporary hop protection against T. urticae is based on application of miticides such as propargite. Because this compound has been used in the Czech Republic for mite control for more than two decades, resistance of field strains of two-spotted spider mite may be expected. To investigate this phenomenon, samples of field populations were taken and subjected to laboratory tests in a Potter spray tower. Values of LC 50 in these strains were compared with a susceptible strain to determine resistance factors (RF). The data surprisingly showed quite low values of RF and a good biological efficiency. Therefore, propargite can be still recommended to control T. urticae within hop yards in the Czech Re
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Second International Humulus Symposium, Acta Horticulturae 848
ISBN
9789066057227
ISSN
0567-7572
e-ISSN
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Number of pages
6
Pages from-to
165-170
Publisher name
International Society for Horticultural Science
Place of publication
Leuven, Belgie
Event location
Ghent, Belgie
Event date
Sep 1, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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