Evaluation of Treatments in 2010 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.

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
 1  Corolla                       NC    Currituck      MD     6g       3461     0.23   -7.32    0.33   -1
 2  False Cape                    NC    Currituck      Npv    5x10^12   240    -1.00     ---   19.02   513
 3  Jarvisburg                    NC    Currituck      Btk    25BIUx2  1491     0.80     ---    1.56   11
 4  Macon                         NC    Warren         Btk    25BIUx2   522     0.68     ---    2.46   7
 5  Ringgold                      NC    Caswell        Btk    25BIUx2  1863     0.99     ---    0.04   508
 6  Big A Mountain                VA    Buchanan       MD     6g       2019     0.98    1.00    0.64   1
 7  Blairs                        VA    Pittsylvania   MD     6g       2535     0.99    0.93    0.04   48
 8  Brushy  Mtn.                  VA    Tazewell       MD     15g      1601     0.80    0.99    3.66   7
 9  Buck Mtn.                     VA    Grayson        MD     15g      1414     1.00    1.00    0.08   20
10  Cascade                       VA    Pittsylvania   MD     15g       727     1.00    0.99    0.00   34
11  Chilhowie                     VA    Smyth          MD     6g        623     1.00    1.00    0.00   8
12  Cluster Springs               VA    Halifax        MD     6g        914     1.00    0.98    0.00   63
13  False Cape                    VA    Virginia Beach Npv    5x10^12  2383    -1.73     ---  143.03   513
14  Flat Top Mtn.                 VA    Tazewell       MD     6g       1246     0.86    1.00    5.41   7
15  Keen Mountain                 VA    Buchanan       MD     6g        957     1.00    1.00    0.00   3
16  Marion                        VA    Smyth          MD     6g       1363     1.00    0.98    0.00   9
17  Point Lookout Mtn.            VA    Grayson        MD     6g       1109     0.99    1.00    0.37   22
18  Big Jiggly                    WV    Boone          MD     6g      54595     0.99    0.94    0.02   16
19  Little Jiggly                 WV    Wyoming        MD     6g       5182     1.00    0.99    0.00   15
20  Madison                       WV    Boone          MD     6g       2403     0.96    0.89    0.62   7
21  Sylvester                     WV    Boone          MD     6g        426     1.00    1.00    0.00   20

Blocks outside of STS action zone

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
22  Hubert                        NC    Onslow         Npv    5x10^12   399     0.21     ---    9.38   10
23  Southeast Goldsboro           NC    Wayne          Btk    25BIUx2   297     1.00     ---    0.00   8
24  BSA1                          VA    Rockbridge     MD     6g         62      ---     ---     ---   125
25  DAR1                          VA    Rockbridge     MD     6g         62      ---     ---     ---   125
26  DAR2                          VA    Rockbridge     MD     6g         61      ---     ---     ---   125
27  GR3                           VA    Rockbridge     MD     6g         62      ---     ---     ---   103
28  GR4                           VA    Rockbridge     MD     6g         62      ---     ---     ---   123
29  GR5                           VA    Rockbridge     MD     6g         62      ---     ---     ---   122
30  GR8                           VA    Rockbridge     MD     6g         62      ---     ---     ---   124
31  PGA1                          VA    Augusta        MD     6g         62      ---     ---     ---   126

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;

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