Evaluation of Treatments in 2007 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  Granite Falls                 NC    Caldwell       Btk    25BIUx2   596     1.00     ---    0.00   53
 2  Brosville NC                  NC    Caswell        MD     6g        672     1.00    0.61    0.00   41
 3  Knotts Island                 NC    Currituck      MD     15g       600     0.85    0.88    0.02   -1
 4  Berea                         NC    Granville      MD     6g        933     1.00    1.00    0.00   20
 5  Oxford-ground                 NC    Granville      Dim    1oz         8     0.98     ---    2.24   5
 6  Weldon                        NC    Halifax        Btk    25BIUx2   350     0.98     ---    0.52   6
 7  Ruffin                        NC    Rockingham     MD     6g        500     1.00    0.59    0.00   19
 8  Macon East                    NC    Warren         Btk    25BIUx2   361     0.99     ---    0.39   47
 9  Macon West                    NC    Warren         Btk    25BIUx2   413     0.99     ---    0.13   46
10  F1                            VA    Augusta        MD     6g         62      ---     ---     ---   -1
11  F2                            VA    Augusta        MD     6g         62      ---     ---     ---   -1
12  SP1                           VA    Augusta        MD     6g         62      ---     ---     ---   -1
13  SP2                           VA    Augusta        MD     6g         62      ---     ---     ---   -1
14  Big Bend                      VA    Bland          Btk    25BIUx2   644     1.00     ---    0.30   95
15  Bland                         VA    Bland          Btk    25BIUx2  1434     0.97     ---    0.19   58
16  Mechanicsburg2                VA    Bland          Btk    25BIUx2   965     0.97     ---    0.13   132
17  Rocky Gap core                VA    Bland          Btk    25BIUx1  1376     0.99     ---    0.10   96
18  Rocky Gap MD                  VA    Bland          MD     15W      6562     1.00    1.00    0.02   96
19  South Gap                     VA    Bland          Btk    25BIUx2   453     1.00     ---    0.04   96
20  Hillsville                    VA    Carroll        MD     15W      1773     0.98    0.86    0.06   178
21  Laurel Fork                   VA    Carroll        MD     15g      2405     0.97    0.98    0.14   163
22  Willis                        VA    Floyd          MD     15W      5401     0.92    0.21    0.29   168
23  Big Mtn B                     VA    Giles          Btk    25BIUx2   296      ---     ---     ---   -1
24  Fork Ridge                    VA    Giles          Btk    25BIUx2   959     0.15     ---    1.28   -1
25  Nettle Hollow A               VA    Giles          Btk    25BIUx2   823      ---     ---     ---   -1
26  Nettle Hollow B               VA    Giles          Btk    25BIUx2   441      ---     ---     ---   -1
27  Olean A                       VA    Giles          Btk    25BIUx2   293     0.18     ---    1.26   -1
28  Olean B                       VA    Giles          Btk    25BIUx2   849     0.16     ---    1.20   -1
29  Rocky Mountain                VA    Giles          Btk    25BIUx2   309      ---     ---     ---   -1
30  Barley                        VA    Greensville    MD     6g       1773     1.00    0.89    0.00   128
31  Alton                         VA    Halifax        MD     6g        783     0.93    0.89    0.48   51
32  Virgilina                     VA    Halifax        MD     15g      4382     0.94    0.87    0.41   53
33  Baskerville                   VA    Mecklenburg    MD     6g        977     1.00    0.84    0.00   120
34  Bracey                        VA    Mecklenburg    MD     6g        537     1.00    0.26    0.00   141
35  John H Kerr Dam               VA    Mecklenburg    MD     15g      1735     0.90    0.97    1.07   21
36  South Hill                    VA    Mecklenburg    MD     6g       4063     1.00    0.85    0.00   182
37  South Hill SE                 VA    Mecklenburg    MD     6g       1051     1.00    0.94    0.00   143
38  Meadows of Dan                VA    Patrick        MD     6g       5431     0.94    0.80    0.22   144
39  Mount Hermon                  VA    Pittsylvania   MD     6g       1456     0.99    0.96    0.17   48
40  Whitmell core                 VA    Pittsylvania   Btk    25BIUx1   385     1.00     ---    0.36   47
41  Whitmell MD                   VA    Pittsylvania   MD     6g       2806     1.00    0.98    0.16   47
42  Pulaski                       VA    Pulaski        Btk    25BIUx1   389     0.99     ---    0.14   60
43  Pulaski MD                    VA    Pulaski        MD     6g       3736     0.98    0.94    0.14   60
44  Nebo                          VA    Smyth          MD     15g      2565     0.57   -1.13    0.82   122
45  Bramwell                      VA    Tazewell       MD     15g       722     1.00    1.00    0.03   222
46  Rural Retreat                 VA    Wythe          Btk    25BIUx2   480     0.99     ---    0.12   211
47  Speedwell                     VA    Wythe          MD     6g      26652     0.82    0.94    0.84   124

Blocks outside of STS action zone

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
48  Corapeake                     NC    Gates          MD     15g      1035     1.00    0.97    0.02   2
49  Omega                         VA    Halifax        MD     15g      1631     0.99    0.78    0.04   20

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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