Time to Cover a Late Planting: Colder Temperatures Ahead

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If you were late with planting, this is the time to cover your plants

In collaboration with AWIS Weather Services

Dear all,

The spill of warm air that had driven temperatures well into the 80s at the Eastern Shore has finally come to an end. We see a sharp turn of this ahead of us.

Which means: It will get cold. Currently temperatures are predicted to be in the 20s. This change is accompanied by rainfalls later this week!

That can be a problem if you – like so many this year – were running late on planting. While the past temperatures were sufficient to supply a late planting with growing degree days to improve crown development.

The use of floating row covers has shown to improve crown development in the first months after planting. Several common cultivars such as Camarosa, Ruby June or Camino Real do require more growing degree days early on to develop healthy crowns. Row covers can be a useful tool during the upcoming weather, if deployed correctly. We recommend to control pests and diseases before applying covers as well. In some areas it might be recommended to wait until after the weekend rain before deploying row covers.

Please use this article for more guidance on row cover use for GDDs in Fall.

Use this link to calculate Growing Degree Days in some areas in NC

Upcoming Weather Discussion

*** Much Colder Later Weekend, Freeze / Frost Threat Returns
*** Potentially Even Colder Later Next Week / Next Weekend

Tis the season for changing weather, and boy do we have it going
in the coming 1-2 weeks!

Start off by continued very warm temperatures early this week,
lingering over Eastern and Southern areas most of this week.

Then the remains of current Tropical storm Nicole move through
the heart of Peninsula Florida at mid week, then takes a sharp
NE turn through Northern Florida and along the Carolina Coasts
late this week/weekend.

This will spread rains and isolated heavier showers from Northern
Florida through much of the Carolinas and Mid Atlantic.

Rain totals of 1-3 inches will be common, with locally heavier
totals possible, mainly closer to the Atlantic Coast from SE GA
through the Carolinas and into New Jersey.

Most of this rain will come late this week and the first part of
this weekend.

Winds are not anticipated to be a significant issue, as the remains
of Nicole should weaken as it moves across Central Florida and then
turns back NE across North Florida during the middle and end of
this week.

Behind that it will turn much colder late this weekend and early
next week.

Freezing temperatures and/or frost will return to the Mid-Atlantic
and Northern areas of Interior Southeast.

As the upper air pattern transitions later this week, additional
cold air masses may move Southward from Canada later next week
towards next weekend.

Quick Overview of Upcoming Min Temperatures

East Coast minimum temperature forecast for Saturday 11/12/2022.East Coast Minimum Temperature forecast for Sunday 11/13/2022.

East Coast Minimum Temperature Forecast for Monday 11/14/2022.

Figure 1: Predicted min temperatures for the Region from Saturday (11/12/2022) to Monday (11/14/2022). The change will be accompanied my moderate to heavy rain falls (1-3 inches) this weekend!

Use of floating row covers to improve crown development

The use of floating row covers to improve crown development can be helpful in mitigating the negative effects of a late planting. This is especially true for cultivars that are in need of higher growing degree days (GDDs) in their early development in order to develop crowns.

Disease and pest control is crucial if row-covers are planned to use. We have developed a short guidance on row cover use to improve GDDs in fallPlease use this document for more information.

If you expect to see heavy rains and temperatures that won’t fall into the teens, it might be recommended to wait until after the rain before deploying row covers. This will help to improve pest and disease management and avoid wet row covers during freezing temperatures on top of a plant.

Regional Forecasts:

North Carolina

Ahoskie-Tri-Cou Albemarle_AP Andrews Asheboro
Asheville_Munic Beaufort-Michae Boone_NC Burlington-Burl
Cape_Hatteras_AG Chapel_Hill-Hor Charlotte Cherry_Point
Clinton_NC Concord_NC Currituck_NC Edenton-Northea
Elizabeth_City Elizabethtown_NC Erwin-Harnett_C Fayetteville_AP
Fort_Bragg/Simm Franklin/Macon_C Gastonia-Gaston Goldsboro_AFB
Goldsboro_NC Greensboro Greenville_AP_NC Hickory
Jacksonville Jacksonville_(A Jefferson_AP_NC Kenansville-Dup
Kill_Devil_Hills Kinston_AP Lexington-David Lincolnton_AP
Louisburg_NC Lumberton_AP_NC Mackall_AAF Manteo/Dare_Co
Maxton Mcalf_Bogue_Fiel Monroe_AP_NC Morganton-Morga
Mount_Airy-Moun New_Bern North_Wilkesbor Oxford_NC
Piney_Island_Bom Pope_AFB Raleigh-Durham Reidsville_AP
Roanoke_Rap_AP Roanoke_Rapids_R Rockingham_NC Rocky_Mount-Wils
Roxboro_AP Rutherfordton Salisbury-Rowan Sanford_NC
Shelby_AP_NC Smithfield_AP Southern_Pines Southport_NC
Statesville-Sta Tarboro_AP Wadesboro_AP Washington-Warr
Whiteville_NC Wilmington_AP_NC Winston-Salem

South Carolina:

Aiken_AP Anderson_Co_Air Barnwell_AP Beaufort_Cnty_AP
Beaufort_SC Bennettsville_Je Camden_AP Charleston_Exec_
Charleston_Muni Cheraw_AP Chester_SC_AP Clemson-Clemson
Columbia-Columb Columbia/McEnti Columbia_Metro Conway_AP
Darlington Florence_SC Georgetown_AP_SC Greenville_Donal
Greenville_Down Greenville-Spart Greenwood-Green Hartsville_AP
Hilton_Head_AP Kingstree_AP Lancaster-McWhir Laurens_AP
Manning_AP Marion_AP_SC Moncks_Corner_AP Mount_Pleasant_A
Myrtle_Beach Newberry_AP North_Myrtle_Be Orangeburg-Oran
Pickens_AP Rock_Hill Spartanburg_Down Summerville_AP
Sumter_AP Sumter_SC Walterboro_AP Winnsboro_AP


Albany_Municipa Alma/Bacon_Co Americus_AP Athens_Municipa
Atlanta/DeKalb Atlanta/Fulton Atlanta_Intl_Ar Atlanta_Paulding
Augusta/Bush_Fi Augusta_Daniel_F Bainbridge_GA Blakely_AP
Brunswick_GA Brunswick/Glync Canton_GA Carrollton_AP
Cartersville_AP Claxton_AP Columbus_GA Covington_GA_AP
Dalton-Dalton_M Douglas_Muni Dublin/WHBarron Fitzgerald_AP
Fort_Benning Ft_Stewart/Wrig Gainesville_AP_G Greensboro_GA
Homerville_AP Hunter_(AAF) Jesup_AP La_Grange
Lakeland Lawrenceville_AP Macon_AP Marietta
Marietta/Cobb Milledgeville_AP Moultrie_Muni_AP Newnan-Newnan_C
Peachtree_City Rome_GA Savannah Statesboro_GA
Swainsboro_AP Sylvania_AP_GA Thomaston_AP Thomasville_AP
Thomson_GA Tifton_AP Valdosta Valdosta/Moody
Vidalia Warner_Robins_A Washington_GA Waycross_AP


Abingdon Ashland_VA Charlottesville Chesapeake-Ches
Culpeper Danville Dublin/New_Riv Emporia_VA
Farmville Fentress_Naval_A Fort_Belvoir/Da Fort_Eustis/Fel
Franklin/J_B_Ro Hillsville Hot_Springs/Ing Jonesville_AP
Langley_AFB Leesburg/Godfre Louisa-Louisa_C Lynchburg
Manassas_Muni(A Marion/Wythev Martinsville Mecklenburg/Bru
Melfa/Accomack Newport_News Norfolk_Hampton_ Norfolk_NAS
Norfolk_VA Oceana Orange_VA Petersburg_(AWO
Quantico Richlands_AP Richmond Richmond_Chester
Roanoke Shannon_Arpt Stafford_AP_VA Staunton-Shenan
Suffolk-Suffolk Tappahannock_AP Virginia_Tech_A Wakefield_AP
Wallops_Island Warrenton_Fauqui Washington_Dulle West_Point_VA
Williamsburg_VA Winchester_Rgnl Wise/Lonesome_P


Aberdeen Andrews_AFB Annapolis_Naval Baltimore_Sci_Ce
Baltimore/Wash Cambridge/Dorche Camp_David_HEL College_Park_AP
Cumberland_AP Easton_MD Fort_Meade Frederick_MD
Gaithersburg_AP Hagerstown_AP Leonardtown Middle_River
Oakland_MD_AP Ocean_City_AP Patuxent_River Salisbury
Stevensville_AP St_Inigoes/Webst Washington_DC_AP Westminster_AP