Sweetcorn IPM Scouting in Virginia – Week ending July 13, 2018

We are monitoring corn earworm and fall armyworm moth activity levels on sweet corn farms in 17 different counties in Virginia. Moth Trap Catch Data are being recorded by: Kuhar Vegetable Entomology lab (Montgomery Co.); Phil Blevins (Washington Co.); Chris Brown (Franklin Co.); Jason Cooper (Rockingham Co.); Ursula Deitch (Northampton Co.); Helene Doughty (Accomack Co.); Roy Flanagan (VA Beach); Bob Jones (Charlotte Co.); Kenner Love (Page and Rappahannock Co.); Laura Maxey Nay (Hanover Co.); Steve Pottorff (Carrol Co.); Stephanie Romelczyk (Westmoreland Co.); Beth Sastre-Flores (Loudoun Co.); Laura Siegle (Amelia Co.); Rebekah Slabach (Halifax Co.); and Mark Sutphin (Frederick Co.). Data are posted weekly.
Below are some trap catch results (moths per night) for some of the locations around Virginia for this week (note we do not have data for all locations yet).  In summary, we are observing the highest corn earworm activity in the eastern portion of the state including Virginia Beach and Exmore on the Eastern Shore.  Pest pressure is considered high in those locations.  Above threshold trap catch of corn earworm is also being observed on some farms in the southwest region of the state (Franklin County and Montgomery County).  Very little fall armyworm activity has been observed at this point.

Region County        Field                      CEW/night     FAW/night
Eastern Accomack Painter
Eastern Accomack Painter
Eastern Virginia Beach Northridge    3.4                       2.9
Eastern Virginia Beach Pungo            4.3                          0
Eastern Virginia Beach Creeds           5.9                       0.1
Eastern Northampton Capeville         1.0                        0
Eastern Northampton Cheriton          1.9                        0
Eastern Northampton Eastville           0.7                        0
Eastern Northampton Exmore            7.4                        0
Eastern Westmoreland Field                0.2                       0
Central Amelia Field
Central Hanover Wiblin
Central Hanover Haynes
Central Halifax
Central Halifax
Central Charlotte
Northern Loudoun Field1                    1.0                         0
Northern Loudoun Field2                    <.2                        0
Northern Loudoun Field3                    <.2                        0
Northern Rappahannock
Northern Page
Northern Frederick Field1                     0.3                      0
Northern Frederick Field2                     0                         0
Northern Rockingham
Southwest Montgomery Whitethorne   0.0                    0
Southwest Montgomery Homefield       0.0                    0
Southwest Montgomery Wall                  2.0                    0
Southwest Franklin Wirtz                         1.4                    0
Southwest Carroll
Southwest Washington Abingdon