Grape Pest Survey – 2nd Week of August

— Written By and last updated by

Our first vinifera location, in Rowan Co., began harvest this past week, and as the fruit were gone, we captured the grape berry moth again. This suggests that perhaps our traps have become more attractive as fruit is harvested or that this generation is not a threat to fruit. Regardless, this vineyard did not experience fruit damage from grape berry moth, so the densities present are not economically significant.

At both our Northeast locations, Perquimans and Currituck Co., we again caught glassy winged sharpshooters, although in very low numbers.

Graphocephla versuta seems to be slightly increasing its numbers  in those  locations where it is  present.

Southwest Field 1

Rowan County (Muscadine grapes)
15 April 22 April 29  April 7 May 14 May 20 May 30 May 4 June
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0 3 1
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0
Graphocephala versuta 0.3 0.2 0.2 0.7 0.2 0.2 0.2 2.7
Oncometopia orbona∗ 0 0 0 0 0 0 0.2 0.2
Grape berry moth 0 0 0 0 0.2 0 0.3 0
Spotted lanternfly eggs 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs 0 0 0 0 0 0 0 0
Spotted lanternfly adults 0 0 0 0 0 0 0 0

 ∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Rowan County (Muscadine grapes)
14 June 20 June 27 June 3 July 11 July 18 July 25 July 1 August 6 August 15 August
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0.3 0.2 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 1 2 4 0 2 3 1 21 5
Three cornered alfalfa hopper (field edge) 8 6 2 5 1 6 3 3 1 7
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0.2 0 0
Graphocephala versuta 47.5 50.7 51.3 24.3 19.3 8.3 12.5 13 3.5 10
Oncometopia orbona∗ 0 0 0.2 0.2 0.3 0.2 0.2 0 0 0
Grape berry moth 0 0 0 0 0.3 0.3 0.1 0 0 0
Spotted lanternfly eggs 0 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs 0 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults 0 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Southwest Field 2

 Rowan County (Vinifera grapes)
30 May 4 June 14 June 20 June 27 June 3 July 11 July 18 July 25 July
Three cornered alfalfa hopper (sticky traps) 0.2 0.2 1.7 0.3 1.2 0.8 1 0 0.3
Three cornered alfalfa hopper (within field) 0 0 1 2 1 1 0 1 0
Three cornered alfalfa hopper (field edge) 0 1 3 0 5 1 1 0 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0.3 0 0.2 0
Phera insolita 0 0 0 0 0 0 0 0.2 0.2
Graphocephala versuta 0.7 8.2 11.3 46 18.8 39.5 13.5 16.3 4.2
Graphocephala prob. coccinea 0 0 0.2 0 0 0.2 0 0 0
Oncometopia orbona∗ 0.5 0.2 0 0 0 0 0 0 0
Grape berry moth 0.1 0 0 0 0 0 0 0 0.3
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

 Rowan County (Vinifera grapes)
1 August 6 August 15 August
Three cornered alfalfa hopper (sticky traps) 0.2 0.3 0
Three cornered alfalfa hopper (within field) 0 0 0
Three cornered alfalfa hopper (field edge) 0 1 0
Glassy -winged sharpshooter∗ 0 0 0
Phera insolita 0 0 0
Graphocephala versuta 7 5.5 10.7
Graphocephala prob. coccinea 0 0 0
Oncometopia orbona∗ 0 0 0
Grape berry moth 0.1 0 0.4
Spotted lanternfly eggs♦ 0 0 0
Spotted lanternfly nymphs♦ 0 0 0
Spotted lanternfly adults♦ 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Northwest  Field 1

Wilkes County (Vinifera grapes)
18 April 26 April 1  May 7 May 13 May 21 May 29 May 3 June  11 June 
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0 0 1 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0 0
Graphocephala versuta 0.2 3.3 8 21.6 8.2 19 26.7 3.5 1.2
Graphocephala prob. coccinea 0 0 0 0 0 0 0.3 0.3 0.5
Oncometopia orbona∗ 0 0 0 0.3 0.7 0.3 1.5 1.3 0.7
Grape berry moth 0 0 0 0 0 0 0.7 1.4 0.3
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Wilkes County (Vinifera grapes)
19 June 25 June 3 July 9 July 15 July 22 July 29 July 7 August 12 August
Three cornered alfalfa hopper (sticky traps) 0.3 0 1.2 0.2 0 0 0 0 0
Three cornered alfalfa hopper (within field) 3 3 0 0 1 0 0 1 0
Three cornered alfalfa hopper (field edge) 0 0 2 0 1 0 0 2 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0 0
Graphocephala versuta 4.3 8.8 8.3 3.3 0 0.2 0 0 0.3
Graphocephala prob. coccinea 0 0 0.2 0 0 0 0 0 0
Oncometopia orbona∗ 0 0.2 0 0 0 0 0 0 0
Grape berry moth 0 0.7 0.4 0 0.1 0.3 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Northwest  Field 2

Surry County (Vinifera grapes)
18 April 26 April 1  May 7 May 13 May 21 May 29 May 3 June
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0.2
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0
Graphocephala versuta 0.5 0.3 1.2 4.5 0.3 0.3 1 0
Graphocephala prob. coccinea 0 0 0 0 0 0 0 0
Oncometopia orbona∗ 0 0 0 0 0 0.3 0.2 0.2
Grape berry moth 0 0 0 0 0 0 0.1 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Surry County (Vinifera grapes)
11 June 19 June 25 June 3 July 9 July 15 July 22 July 29 July 7   August 12 August
Three cornered alfalfa hopper (sticky traps) 0 0.3 0 1 0.3 0 0 0 0.3 1.7
Three cornered alfalfa hopper (within field) 0 1 2 1 1 0 0 3 0 0
Three cornered alfalfa hopper (field edge) 0 4 2 2 4 1 1 2 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0 0 0
Graphocephala versuta 0.5 6.2 18.5 31.8 15.5 6 4 0.8 2.5 1.2
Graphocephala prob. coccinea 0 0.2 0.2 0.2 0 0 0 0 0 0
Oncometopia orbona∗ 0.2 0.3 0.3 0.2 0 0 0 0 0 0
Grape berry moth 0 0 0 0 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Northeast  Field 1

Perquimans County (Muscadine grapes)
8 May 15 May 22 May 28 May 5 June 12 June 18 June 26 June 1 July
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0.2 0
Three cornered alfalfa hopper (within field) 0 0 1 1 0 0 2 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0.5 1.2 1.3 0.7
Phera insolita 0 0 0 0 0 0 0 0 0
Graphocephala versuta 2.3 0.5 0.3 4.2 39.3 41.8 21.5 18 4.3
Graphocephala prob. coccinea 0 0 0 0 0 0 0 0.2 0
Oncometopia orbona∗ 0 0.2 0.7 0 0 0 0 0.2 0
Grape berry moth 0 0 0 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0

∗ Average number per sticky trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Perquimans County (Muscadine grapes)
10 July 17 July 24 July 30 July 8 August 14 August
Three cornered alfalfa hopper (sticky traps) 0 0 0 0.2 0.3 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.8 0.5 0.7 0 0 0.3
Phera insolita 0 0 0 0 0.2 0
Graphocephala versuta 2.7 1.8 1.2 0.7 0.7 0.8
Graphocephala prob. coccinea 0 0 0 0 0 0
Oncometopia orbona∗ 0 0 0 0 0 0
Grape berry moth 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Northeast  Field 2

Currituck County (Vinifera grapes)
8 May 15 May 22 May 28 May 5 June 12 June 18 June 26 June 1 July
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0.2 0.5 0.2
Phera insolita 0 0 0 0 0 0 0 0 0
Graphocephala versuta 0.2 0 0 0 0 0 0 0 0
Oncometopia orbona∗ 0.5 0.5 0.2 1 1.2 0 0 0 0
Grape berry moth 0 0 0 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Currituck County (Vinifera grapes)
10 July 17 July 24 July 30 July 8 August 14 August
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.5 0.3 0.2 0.2 0 0.2
Phera insolita 0 0 0 0 0 0
Graphocephala versuta 0 0 0 0 0 0
Graphocephala prob. coccinea 0 0 0 0 0 0
Oncometopia orbona∗ 0 0 0 0 0 0
Grape berry moth 0 0.1 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Southeast Field 1

 Johnston County (Muscadine grapes)
16 May 23 May 30 May 6 June 13 June 20 June 27 June 2 July
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 2 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 1 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0.5 0.8
Phera insolita 0 0 0 0 0 0 0 0
Graphocephala versuta 0.2 0 0 0 2.7 0.3 0.2 0
Oncometopia orbona∗ 0 0.2 0.2 0 0 0 0 0
Grape berry moth 0 0 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

 Johnston County (Muscadine grapes)
11 July 16 July 25 July 31 July 5 August 13 August
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0
Graphocephala versuta 0 0 0.2 0 0 0
Graphocephala prob. coccinea 0 0 0 0 0 0
Oncometopia orbona∗ 0 0.2 0 0 0 0
Grape berry moth 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

Southeast Field 2

 New Hanover County (Muscadine grapes)
16 May 23 May 30 May 6 June 13 June 20 June 27 June 2 July
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 3 1 1 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0.2 0.3 0.3 0.2
Phera insolita 0 0 0 0 0.2 0 0 0
Graphocephala versuta 0 0 0 0.8 3.8 3.8 2.2 0.3
Graphocephala prob. coccinea 0 0 0 0 0.3 0.2 0 0.3
Oncometopia orbona∗ 0 0 0 0 0 0 0 0
Grape berry moth 0 0 0 0 0 0 0 0
Spotted lanternfly eggs 0 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m

 Number  of Spotted Lanternfly per 2 transects of 100 m

 New Hanover County (Muscadine grapes)
8 July 16 July 25 July 31 July 5 August 13 August
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.2 0 0.3 0.2 0 0
Phera insolita 0 0 0 0 0 0
Graphocephala versuta 0.2 0.7 2.2 0 0.2 0.2
Graphocephala prob. coccinea 0.5 0.5 0.2 0 0 0
Oncometopia orbona∗ 0 0 0 0 0 0
Grape berry moth 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m