Grape Pest Survey – 3rd Week of July

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— Written By Rocio Davila and last updated by Hannah Burrack
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Grapes are starting to ripen, including those at our location in Currituck Co.

Vinifera grapes, Currituck Co.

Vinifera grapes in Currituck Co. Photo: Rocio Davila

This week we continue to catch grape berry moth in Rowan Co. but also, in Wilkes and Currituck Co. Their presence is still in very low numbers, but as the berries start to ripen, we expect to see an increase in its presence.

The leaf hopper, Graphocephala versuta, where present, continues to decrease in numbers. Glassy winged sharpshooter are still present in our two locations at the Northeast, Perquimans and Currituck Co., and also at one of our locations in Rowan Co.

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

Southwest Field 2

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

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0.3 0 1.2 0.2 0
Three cornered alfalfa hopper (within field) 0 3 3 0 0 1
Three cornered alfalfa hopper (field edge) 0 0 0 2 0 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0
Phera insolita∗ 0 0 0 0 0 0
Graphocephala versuta∗ 1.2 4.3 8.8 8.3 3.3 0
Graphocephala prob. coccinea 0.5 0 0 0.2 0 0
Oncometopia orbona∗ 0.7 0 0.2 0 0 0
Grape berry moth∗ 0.3 0 0.7 0.4 0 0.1
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

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0.3 0 1 0.3 0
Three cornered alfalfa hopper (within field) 0 1 2 1 1 0
Three cornered alfalfa hopper (field edge) 0 4 2 2 4 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0
Phera insolita∗ 0 0 0 0 0 0
Graphocephala versuta∗ 0.5 6.2 18.5 31.8 15.5 6
Graphocephala prob. coccinea 0 0.2 0.2 0.2 0 0
Oncometopia orbona∗ 0.2 0.3 0.3 0.2 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 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
Three cornered alfalfa hopper (sticky traps)∗ 0 0
Three cornered alfalfa hopper (within field) 0 0
Three cornered alfalfa hopper (field edge) 0 0
Glassy -winged sharpshooter∗ 0.8 0.5
Phera insolita∗ 0 0
Graphocephala versuta∗ 2.7 1.8
Graphocephala prob. coccinea 0 0
Oncometopia orbona∗ 0 0
Grape berry moth∗ 0 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

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0
Three cornered alfalfa hopper (within field) 0 0
Three cornered alfalfa hopper (field edge) 0 0
Glassy -winged sharpshooter∗ 0.5 0.3
Phera insolita∗ 0 0
Graphocephala versuta∗ 0 0
Graphocephala prob. coccinea 0 0
Oncometopia orbona∗ 0 0
Grape berry moth∗ 0 0.1
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

Southeast Field 1

 Johnston County (Muscadine grapes)
16 May 23 May 30 May 6 June 13 June 20 June 27 June 2 July 11 July 16 July
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 2 0 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 1 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0.5 0.8 0 0
Phera insolita∗ 0 0 0 0 0 0 0 0 0 0
Graphocephala versuta∗ 0.2 0 0 0 2.7 0.3 0.2 0 0 0
Oncometopia orbona∗ 0 0.2 0.2 0 0 0 0 0 0 0.2
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

 Johnston County (Muscadine grapes)
11 July 16 July
Three cornered alfalfa hopper (sticky traps)∗ 0 0
Three cornered alfalfa hopper (within field) 0 0
Three cornered alfalfa hopper (field edge) 0 0
Glassy -winged sharpshooter∗ 0 0
Phera insolita∗ 0 0
Graphocephala versuta∗ 0 0
Graphocephala prob. coccinea 0 0
Oncometopia orbona∗ 0 0.2
Grape berry moth∗ 0 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

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0
Three cornered alfalfa hopper (within field) 0 0
Three cornered alfalfa hopper (field edge) 0 0
Glassy -winged sharpshooter∗ 0.2 0
Phera insolita∗ 0 0
Graphocephala versuta∗ 0.2 0.7
Graphocephala prob. coccinea 0.5 0.5
Oncometopia orbona∗ 0 0
Grape berry moth∗ 0 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

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