Grape Pest Survey- 1st Week of August

— Written By Rocio Davila and last updated by
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At our monitoring sites, grapes are ripe, and the first harvest at the Johnston Co. location started this week. During the next couple of weeks, other vineyards will start to harvest as well.

We captured no glassy-winged sharpshooters or grape berry moth in any of our locations this week.

Graphocephala versuta is in very low numbers this week as well as the Three cornered alfalfa hopper, except for one of our fields in Rowan Co. which is surrounded by soybean fields, a main host for this pest.

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0.3 0.2 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 1 2 4 0 2 3 1 21
Three cornered alfalfa hopper (field edge) 8 6 2 5 1 6 3 3 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0 0 0
Phera insolita 0 0 0 0 0 0 0 0.2 0
Graphocephala versuta 47.5 50.7 51.3 24.3 19.3 8.3 12.5 13 3.5
Oncometopia orbona∗ 0 0 0.2 0.2 0.3 0.2 0.2 0 0
Grape berry moth 0 0 0 0 0.3 0.3 0.1 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

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
Three cornered alfalfa hopper (sticky traps) 0.2 0.3
Three cornered alfalfa hopper (within field) 0 0
Three cornered alfalfa hopper (field edge) 0 1
Glassy -winged sharpshooter∗ 0 0
Phera insolita 0 0
Graphocephala versuta 7 5.5
Graphocephala prob. coccinea 0 0
Oncometopia orbona∗ 0 0
Grape berry moth 0.1 0
Spotted lanternfly eggs♦ 0 0
Spotted lanternfly nymphs♦ 0 0
Spotted lanternfly adults♦ 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 
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 1
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 0.2 3.3 8 21.6 8.2 19 26.7 3.5
Graphocephala prob. coccinea 0 0 0 0 0 0 0.3 0.3
Oncometopia orbona∗ 0 0 0 0.3 0.7 0.3 1.5 1.3
Grape berry moth 0 0 0 0 0 0 0.7 1.4
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

Wilkes County (Vinifera grapes)
11 June 19 June 25 June 3 July 9 July 15 July 22 July 29 July 7 August
Three cornered alfalfa hopper (sticky traps) 0 0.3 0 1.2 0.2 0 0 0 0
Three cornered alfalfa hopper (within field) 0 3 3 0 0 1 0 0 1
Three cornered alfalfa hopper (field edge) 0 0 0 2 0 1 0 0 2
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 1.2 4.3 8.8 8.3 3.3 0 0.2 0 0
Graphocephala prob. coccinea 0.5 0 0 0.2 0 0 0 0 0
Oncometopia orbona∗ 0.7 0 0.2 0 0 0 0 0 0
Grape berry moth 0.3 0 0.7 0.4 0 0.1 0.3 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
Three cornered alfalfa hopper (sticky traps) 0 0.3 0 1 0.3 0 0 0 0.3
Three cornered alfalfa hopper (within field) 0 1 2 1 1 0 0 3 0
Three cornered alfalfa hopper (field edge) 0 4 2 2 4 1 1 2 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 0.5 6.2 18.5 31.8 15.5 6 4 0.8 2.5
Graphocephala prob. coccinea 0 0.2 0.2 0.2 0 0 0 0 0
Oncometopia orbona∗ 0.2 0.3 0.3 0.2 0 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

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
Three cornered alfalfa hopper (sticky traps) 0 0 0 0.2 0.3
Three cornered alfalfa hopper (within field) 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.8 0.5 0.7 0 0
Phera insolita 0 0 0 0 0.2
Graphocephala versuta 2.7 1.8 1.2 0.7 0.7
Graphocephala prob. coccinea 0 0 0 0 0
Oncometopia orbona∗ 0 0 0 0 0
Grape berry moth 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0
Spotted lanternfly adults♦ 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
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.5 0.3 0.2 0.2 0
Phera insolita 0 0 0 0 0
Graphocephala versuta 0 0 0 0 0
Graphocephala prob. coccinea 0 0 0 0 0
Oncometopia orbona∗ 0 0 0 0 0
Grape berry moth 0 0.1 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0
Spotted lanternfly adults♦ 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
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0
Phera insolita 0 0 0 0 0
Graphocephala versuta 0 0 0.2 0 0
Graphocephala prob. coccinea 0 0 0 0 0
Oncometopia orbona∗ 0 0.2 0 0 0
Grape berry moth 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0
Spotted lanternfly adults♦ 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
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0
Glassy -winged sharpshooter∗ 0.2 0 0.3 0.2 0
Phera insolita 0 0 0 0 0
Graphocephala versuta 0.2 0.7 2.2 0 0.2
Graphocephala prob. coccinea 0.5 0.5 0.2 0 0
Oncometopia orbona∗ 0 0 0 0 0
Grape berry moth 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0
Spotted lanternfly adults♦ 0 0 0 0 0

∗ Average number per trap

 Number  of Spotted Lanternfly per 2 transects of 100 m