Population ecology of Empoasca vitis (Göthe) and Scaphoideus titanus (Ball) in Bordeaux vineyards: Influence of migration and landscape

Decante, Damien; Helden, M. van

doi:10.1016/j.cropro.2005.09.016

Cited by 29 publications

(46 citation statements)

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“…Adult and nymphal population dynamics in 1998, 1999 and 2000 ( Figs 2, 3 ) showed typical and consistent population dynamics for the Bordeaux region ( Decante & van Helden, 2006 ). Abundance in 1998 systematically exceeded that recorded in 1999 and 2000.…”

Section: Population Dynamicsmentioning

confidence: 86%

“…Within plots, E. vitis aggregations are observed ( Decante & van Helden, 2006 ). Moreover, growers indicate that hopperburn symptoms are located in the same area of the plot every year.…”

Section: Introductionmentioning

confidence: 96%

“…At plot scale, population levels of successive generations show large fluctuations that can be attributed to summer migrations (Decante & van Helden, 2003), but inter-plot redistribution of migrating adults and of their offspring have not been connected to plot characteristics (varieties, age, surrounding vegetation; Decante & van Helden, 2006 ). Within plots, E. vitis aggregations are observed ( Decante & van Helden, 2006 ).…”

Section: Introductionmentioning

confidence: 96%

“…Before spring immigration into (and after autumn emigration out of) vine plots, adults can be observed on a wide range of deciduous plants present in the vineyard vicinity: the intermediate host plants ( Cerutti et al , 1991;van Helden et al , 2003 ). Two to four sexual generations develop in vineyards ( Cerutti et al , 1991;Bosco et al , 1996;Genini, 2000;Boell & Hermann, 2004 ), and recurrent inter-plot summer migrations are assumed (Decante & van Helden, 2003, 2006. Adults and nymphs feed on phloem sap, and punctures provoke leaf necrosis (hopperburn: Backus et al , 2005 ) that result in delayed maturity and reduced sugar content ( Vidano et al , 1987;Candolfi et al , 1993;Delbac et al , 1996 ).…”

Section: Introductionmentioning

confidence: 98%

“…These migrations have to be taken into account for adequate Integrated Pest Management strategies ( Lamp & Zhao, 1993;Holt et al , 1996 ;Ishii-Eitman et al , 1997;Irwin, 1999;Jeger, 1999 ;Matsumura & Suzuki, 2003 ;Orenstein et al , 2003;Emmen et al , 2004;Decante & van Helden, 2006 ).…”

Section: Introductionmentioning

confidence: 99%

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Spatial and temporal distribution of Empoasca vitis within a vineyard

Decante¹,

Helden²

2008

Agri and Forest Entomology

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1 The intra-plot spatial distribution of the green leafhopper Empoasca vitis (Goethe) (Cicadellidae, Empoascini) was assessed over three successive growing seasons in a Bordeaux vineyard. Weekly measurements of adult trappings and nymphal counts were performed in a 1.7-ha plot on 130 sampling points. 2 Statistical and geostatistical analyses revealed inconsistent spatial distributions of adults and nymphs in spring, but consistent spatial distributions in summer, which were identical every year. 3 Similarities between spatial distributions of the mobile adults and the sedentary and aggregated nymphs strongly suggest that adults disperse inside the plot to areas preferred for egg deposition. 4 The similarity of summer populations among years suggests that this insects distribution is based on (perennial) differences in plot characteristics. Figure 5Average spatial distribution (AspD) distribution maps. Spatial distributions of summer adults (A1 -2) and nymphs (N2) ASpDs are mapped using the Kriging method. D. Decante and M. van Helden

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Section: Population Dynamicsmentioning

confidence: 86%

“…Within plots, E. vitis aggregations are observed ( Decante & van Helden, 2006 ). Moreover, growers indicate that hopperburn symptoms are located in the same area of the plot every year.…”

Section: Introductionmentioning

confidence: 96%