Abstract
The first European appearance of american grapevine leafhopper (Scaphoideus titanus), which is the vector of Grapevine Flavescence Dorée phytoplasma (‘Ca. Phytoplasma vitis’), were detected in France in 1924. The leafhopper has been distributed since 2006 in Hungary and now it occurs in the whole country, while the first record of the phytoplasma was published in 2013.We studied the distribution of the leafhopper in surroundings of Nagyvárad (Oradea, West Romania) in 2015 and surroundings of Debrecen (East Hungary) in 2016. During the studies 17 sites were sampled. The leafhoppers were found in six Romanian places with relatively low abundances while it occurs in all studied Hungarian sites and two of them showed extremely high frequenncy.
Highlights
The first European appearance of american grapevine leafhopper (Scaphoideus titanus), which is the vector of Grapevine Flavescence Dorée phytoplasma (‘Ca. Phytoplasma vitis’), were detected in France in 1924
We studied the distribution of the leafhopper in surroundings of Nagyvárad (Oradea, West Romania) in 2015 and surroundings of Debrecen (East Hungary) in 2016
The leafhoppers were found in six Romanian places with relatively low abundances while it occurs in all studied Hungarian sites and two of them showed extremely high frequenncy
Summary
We studied the distribution of the leafhopper in surroundings of Nagyvárad (Oradea, West Romania) in 2015 and surroundings of Debrecen (East Hungary) in 2016. Az amerikai szőlőkabóca (Scaphoideus titanus Ball 1932) Debrecen és Nagyvárad környéki elterjedése és állományainak helyzete A szőlő aranyszínű sárgaság (Grapevine Flavecence Dorée) kórokozóját (’Ca. Phytoplasma vitis’) terjesztő amerikai szőlőkabócát (Scaphoideus titanus) Európában először Franciaországban találták meg 1924-ben. A kabóca elterjedésének vizsgálatát 2015-ben Nagyvárad, míg 2016-ban Debrecen környéki területeken végeztük el. 2015-ben Nagyvárad környékén a fajt sikerült hat új lelőhelyről begyűjteni, ahol kismértékű fertőzöttséget tapasztaltunk, míg 2016-ban Debrecen környékén a faj minden vizsgált területen előkerült, két elszigetelt ültetvényben pedig kimagasló fertőzöttséget tapasztaltunk.
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