Proposed Treatments in 2013 in VA, WV, and NC

  
Index of treatment success
T = 1 - [Nt/Nt -1]*[nt -1/nt]
Index of colony presence
C = Nt/nt

Map of treatment blocks

Table with full information

(view with Excel, see legend)
Treatment Evaluation
Explained
 		Nt and nt are average moth counts in pheromone traps in year t in the treatment block and in the control area around it, respectively. Treatment is done in year t. In the case of mating disruption or intensive trapping, evaluation is performed in year t +1. Thus, Nt and nt in equations for T and C are replaced by Nt+1 and nt+1. If values of nt-1 or nt are less than 0.05, then they are replaced by the value of 0.05 for estimating of T. Treatment is successful if T > 0.67; partially successful if 0.33 < T < 0.67; and unsuccessful if T < 0.33. If C is much >1, then the colony is still present and may require additional treatments.

List grouped by state and treatment; download shapefiles 

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
 1  Carova                        NC    Currituck      MD     15g       514      ---     ---     ---   91
 2  Inez                          NC    Warren         Btk    24BIUx2  1285      ---     ---     ---   7
 3  Northwest Eden                NC    Rockingham     MD     15g       466      ---     ---     ---   85
 4  Ringgold                      NC    Caswell        MD     15g      2036      ---     ---     ---   86
 5  Ruffin                        NC    Rockingham     Btk    24BIUx2   422      ---     ---     ---   17
 6  Satterwhite                   NC    Granville      Btk    24BIUx2   922      ---     ---     ---   13
 7  False Cape                    VA    Virginia Beach MD     15g      3769      ---     ---     ---   91
 8  Hayters Gap                   VA    Washington     MD     6g        301      ---     ---     ---   98
 9  Middle Fox Creek              VA    Grayson        MD     6g       1025      ---     ---     ---   101
10  Poor Valley                   VA    Washington     MD     6g        387      ---     ---     ---   98
11  Saltville                     VA    Smyth          MD     6g        267      ---     ---     ---   99
12  Stuart                        VA    Patrick        MD     6g       4131      ---     ---     ---   108

Blocks outside of STS action zone

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
13  Cluster Springs               VA    Halifax        MD     6g       1803      ---     ---     ---   123
14  Garden Mountain               VA    Tazewell       MD     6g      32602      ---     ---     ---   100
15  Ringgold                      VA    Pittsylvania   MD     6g       5638      ---     ---     ---   119

PPA = Potential Problem Area, detected by the Decision Algorithm from previous year data.
Treatment agents: Btk (or Bt, BT) = Bacillus thuringiensis var. kurstaki;
MD (or PF) = Mating disruption with pheromone flakes containing disparlure;
NPV = virus, preparation Gypchek;
DIM = Dimilin (=diflubenzuron);
Trap = Mass trapping;

Back to the STS Decision-Support system

    For more information, please contact Patrick Tobin or Andy Roberts
    Maintained By Jiang Wu