Grape Pest Survey – 2nd Week of July

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— Written By Rocio Davila and last updated by Hannah Burrack
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The grapes at our monitoring sites continue to grow and are getting close to full size.

Muscadine grapes

Muscadines grapes. Perquimans Co.

This week, we caught grape berry moth at our Rowan Co. location, although in very low numbers. In  other locations, the captures remain zero.

Graphocephala versuta catches this week show lower numbers compared to the last one which may indicate that we are in between generations.

Similar to the past week, captures of glassy winged sharpshooters are present at the east locations, in Currituck, Perquimans and New Hanover Co., but numbers are still low.

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

Southwest Field 2

 Rowan County (Vinifera grapes)
30 May 4 June 14 June 20 June 27 June 3 July 11 July
Three cornered alfalfa hopper (sticky traps)∗ 0.2 0.2 1.7 0.3 1.2 0.8 1
Three cornered alfalfa hopper (within field) 0 0 1 2 1 1 0
Three cornered alfalfa hopper (field edge) 0 1 3 0 5 1 1
Glassy -winged sharpshooter∗ 0 0 0 0 0 0.3 0
Phera insolita∗ 0 0 0 0 0 0 0
Graphocephala versuta∗ 0.7 8.2 11.3 46 18.8 39.5 13.5
Graphocephala prob. coccinea 0 0 0.2 0 0 0.2 0
Oncometopia orbona∗ 0.5 0.2 0 0 0 0 0
Grape berry moth∗ 0.1 0 0 0 0 0 0
Spotted lanternfly eggs♦ 0 0 0 0 0 0 0
Spotted lanternfly nymphs♦ 0 0 0 0 0 0 0
Spotted lanternfly adults♦ 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
Three cornered alfalfa hopper (sticky traps)∗ 0 0.3 0 1.2 0.2
Three cornered alfalfa hopper (within field) 0 3 3 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 2 0
Glassy -winged sharpshooter∗ 0 0 0 0 0
Phera insolita∗ 0 0 0 0 0
Graphocephala versuta∗ 1.2 4.3 8.8 8.3 3.3
Graphocephala prob. coccinea 0.5 0 0 0.2 0
Oncometopia orbona∗ 0.7 0 0.2 0 0
Grape berry moth∗ 0.3 0 0.7 0.4 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

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

Perquimans County (Muscadine grapes)
8 May 15 May 22 May 28 May 5 June 12 June 18 June 26 June 1 July 10 July
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0 0 0 0 0 0.2 0 0
Three cornered alfalfa hopper (within field) 0 0 1 1 0 0 2 0 0 0
Three cornered alfalfa hopper (field edge) 0 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 0.8
Phera insolita∗ 0 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 2.7
Graphocephala prob. coccinea 0 0 0 0 0 0 0 0.2 0 0
Oncometopia orbona∗ 0 0.2 0.7 0 0 0 0 0.2 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 sticky 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 10 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 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0.2 0.5 0.2 0.5
Phera insolita∗ 0 0 0 0 0 0 0 0 0 0
Graphocephala versuta∗ 0.2 0 0 0 0 0 0 0 0 0
Oncometopia orbona∗ 0.5 0.5 0.2 1 1.2 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

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
Three cornered alfalfa hopper (sticky traps)∗ 0 0 0 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 2 0 0 0 0 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 1 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0 0.5 0.8 0
Phera insolita∗ 0 0 0 0 0 0 0 0 0
Graphocephala versuta∗ 0.2 0 0 0 2.7 0.3 0.2 0 0
Oncometopia orbona∗ 0 0.2 0.2 0 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

Southeast Field 2

 New Hanover County (Muscadine grapes)
16 May 23 May 30 May 6 June 13 June 20 June 27 June 2 July 8 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 3 1 1 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0.2 0.3 0.3 0.2 0.2
Phera insolita∗ 0 0 0 0 0.2 0 0 0 0
Graphocephala versuta∗ 0 0 0 0.8 3.8 3.8 2.2 0.3 0.2
Graphocephala prob. coccinea 0 0 0 0 0.3 0.2 0 0.3 0.5
Oncometopia orbona∗ 0 0 0 0 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

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