Table 2.
The 20 most abundant leafhopper species out of 85 morphospecies collected in geographically extensive survey of 27 vineyards across Virginia, North Carolina ,and Pennsylvania, 30 May to 24 Sep 2013
| Leafhopper | Within vineyard | In vegetation adjacent to vineyard | |||
|---|---|---|---|---|---|
| Cardsa | Ground sweepsb | Canopy sweepsb | Cardsa | Canopy sweepsb | |
| Graphocephala versuta | 13.08 | 0.29 | 0.49 | 10.99 | 0.83 |
| Empoasca fabae | 3.18 | 0.21 | 0.44 | 1.20 | 0.38 |
| Agallia constricta | 1.24 | 21.73 | 0.30 | 0.15 | 0.03 |
| Paraphlepsius irroratus | 0.39 | 0.25 | 0.00 | 0.41 | 0.03 |
| Oncometopia orbona | 0.39 | 0.00 | 0.00 | 0.23 | 0.04 |
| Xestocephalus desertorum | 0.28 | 0.07 | 0.00 | 0.28 | 0.00 |
| Erasmoneura vulnerata | 0.21 | 0.01 | 0.04 | 1.11 | 0.36 |
| Scaphytopius nigrifrons | 0.18 | 0.00 | 0.00 | 0.55 | 0.06 |
| Forcipata loca | 0.16 | 1.23 | 0.01 | 0.07 | 0.01 |
| Agalliopsis novella | 0.09 | 0.01 | 0.00 | 0.41 | 0.02 |
| Erythroneura curvata | 0.08 | 0.00 | 0.00 | 0.10 | 0.01 |
| Erythroneura sp. | 0.08 | 0.01 | 0.00 | 0.51 | 0.09 |
| Graphocephala coccinea | 0.06 | 0.00 | 0.01 | 0.48 | 0.04 |
| Jikradia olitoria | 0.05 | 0.00 | 0.00 | 0.48 | 0.09 |
| Graminella nigrifrons | 0.05 | 3.41 | 0.01 | 0.01 | 0.02 |
| Ossiannilssonola sp. | 0.04 | 0.00 | 0.00 | 0.01 | 0.00 |
| Scaphytopius acutus | 0.04 | 0.01 | 0.01 | 0.55 | 0.01 |
| Scaphoideus sp. (probably S. minor) | 0.04 | 0.00 | 0.00 | 0.20 | 0.02 |
| Erythroneura comes | 0.03 | 0.01 | 0.03 | 0.24 | 0.08 |
| Erythroneura tricincta | 0.02 | 0.00 | 0.01 | 0.24 | 0.18 |
Jikradia olitoria is in bold. Vineyard cultivars for ‘Within vineyard’ samples include V. vinifera cvs. Chardonnay, Cabernet Sauvignon, Merlot, and Riesling, and Vitis interspecific hybrid cv. Traminette. Adjacent vineyard vegetation included a mix of herbaceous and woody plants, the latter primarily wild grape (V. vulpina L.), and black cherry (Prunus serotina Ehrh.).
aRank order is based on within vineyard sticky trap card samples. Numbers for cards are the number of specimens collected per sampling method, averaged over the entire sampling period and across vineyards. Specifically, N = 71 cards in vegetation adjacent to vineyard and N = 496 cards in the vineyard canopy.
bNumbers for sweeps are the number of specimens collected per 100 sweeps, averaged across samples and vineyards. Specifically, N =157 within vineyard ground sweeps; N = 152 within vineyard canopy sweeps, and N = 159 adjacent vegetation sweeps.