Grape Pest Survey- 2nd Week of June

— Written By Rocio Davila and last updated by Hannah Burrack
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We are starting to catch the glassy winged sharpshooter, a vector of Pierce’s diseases(PD) in one of our northeast fields. Also, another vector of PD, the leaf hopper Graphocephala versuta is abundant in some of our fields.

Grapes are less than pea size in most fields.Grape berry moth has been observed in a few locations was when caught was in very low numbers.

We have also found three cornered alfalfa hopper in both of our scouting methods, sweeping and sticky traps, for both of our southwestern fields.

For our previous scouting report, please check out Grape Pest Survey  1st Week of June

Southwest Field 1

Rowan County (Muscadine grapes)
15 April 22 April 29  May 7 May 14 May 20 May 30 May 4 June 14 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 3 1 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0 0 1 8
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 0.3 0.2 0.2 0.7 0.2 0.2 0.2 2.7 47.5
Oncometopia orbona∗ 0 0 0 0 0 0 0.2 0.2 0
Grape berry moth 0 0 0 0 0.2 0 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

Southwest Field 2

 Rowan County (Vinfera grapes)
30 May 4 June 14 June
Three cornered alfalfa hopper (sticky traps) 0.2 0.2 1.7
Three cornered alfalfa hopper (within field) 0 0 1
Three cornered alfalfa hopper (field edge) 0 1 3
Glassy -winged sharpshooter∗ 0 0 0
Phera insolita 0 0 0
Graphocephala versuta 0.7 8.2 11.3
Graphocephala prob. coccinea 0 0 0.2
Oncometopia orbona∗ 0.5 0.2 0
Grape berry moth 0.1 0 0
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

Northwest  Field 2

Surry 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 0.2 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 0 0
Phera insolita 0 0 0 0 0 0 0 0 0
Graphocephala versuta 0.5 0.3 1.2 4.5 0.3 0.3 1 0 0.5
Oncometopia orbona∗ 0 0 0 0 0 0.3 0.2 0.2 0.2
Grape berry moth 0 0 0 0 0 0 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

Northeast  Field 1

Perquimans County (Muscadine grapes)
8 May 15 May 22 May 28 May 5 June 12 June
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 1 1 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 0 0
Glassy -winged sharpshooter∗ 0 0 0 0 0 0.5
Phera insolita 0 0 0 0 0 0
Graphocephala versuta 2.3 0.5 0.3 4.2 39.3 41.8
Oncometopia orbona∗ 0 0.2 0.7 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 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
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 0.2 0 0 0 0 0
Oncometopia orbona∗ 0.5 0.5 0.2 1 1.2 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 1

 Johnston County (Muscadine grapes)
16 May 23 May 30 May 6 June 13 June
Three cornered alfalfa hopper (sticky traps) 0 0 0 0 0
Three cornered alfalfa hopper (within field) 0 0 2 0 0
Three cornered alfalfa hopper (field edge) 0 0 0 0 1
Glassy -winged sharpshooter∗ 0 0 0 0 0
Phera insolita 0 0 0 0 0
Graphocephala versuta 0.2 0 0 0 2.7
Oncometopia orbona∗ 0 0.2 0.2 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
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 3 1 1 0
Glassy -winged sharpshooter∗ 0 0 0 0 0.2
Phera insolita 0 0 0 0 0.2
Graphocephala versuta 0 0 0 0.8 3.8
Graphocephala prob. coccinea 0 0 0 0 0.3
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