Evaluation of Treatments in 2011 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  Jonathan Crossroads           NC    Granville      MD     6g       1198     1.00     ---    0.02   9
 2  Leasburg North                NC    Caswell        MD     15g      3439     0.99     ---    0.24   7
 3  Leasburg South                NC    Caswell        MD     6g       5672     0.99     ---    0.24   7
 4  Ruffin                        NC    Rockingham     MD     6g       1251    -4.24     ---   41.70   3
 5  Yanceyville North             NC    Caswell        MD     6g       2885     1.00     ---    0.01   6
 6  Yanceyville South             NC    Caswell        MD     6g        958     1.00     ---    0.00   6
 7  Austinville                   VA    Carroll        MD     15g       763     0.90     ---    0.61   47
 8  Cedar Springs                 VA    Grayson        MD     6g        495     0.69     ---    2.65   82
 9  Ingram                        VA    Pittsylvania   MD     6g        644     0.99     ---    0.02   110
10  Konnarock                     VA    Washington     MD     6g       2159     0.99     ---    0.08   41
11  Konnarock A                   VA    Washington     MD     6g        973     0.93     ---    1.90   41
12  Meadows of Dan                VA    Patrick        MD     15g      1605     0.99     ---    0.15   52
13  Meadows of Dan_Btk            VA    Patrick        Btk-MD 24BIUx1   439     1.00     ---    0.07   52
14  Oak Level                     VA    Halifax        MD     6g        448     0.81     ---    0.37   29
15  Pounding Mill                 VA    Tazewell       MD     6g       1382     1.00     ---    0.14   61
16  Pounding Mill BTK             VA    Tazewell       Btk-MD 24BIUx1   144     1.00     ---    0.80   61
17  Pounding Mill_2               VA    Tazewell       MD     6g       1035     0.98     ---    0.17   61
18  Ringgold BTK                  VA    Pittsylvania   Btk    24BIUx2    56      ---     ---     ---   108
19  Rural Retreat                 VA    Bland          MD     15g      2494     0.96     ---    0.04   38
20  South Boston                  VA    Halifax        MD     6g        737     0.99     ---    0.02   30
21  Spring Garden                 VA    Pittsylvania   Btk    24BIUx1   528     0.99     ---    0.02   109
22  Stuart                        VA    Patrick        MD     6g        931     0.97     ---    0.13   52
23  Whitmell                      VA    Pittsylvania   MD     6g        471     0.84     ---    0.71   98
24  Whitmell BTK                  VA    Pittsylvania   Btk    24BIUx2   519     1.00     ---    0.08   100

Blocks outside of STS action zone

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
25  Hubert                        NC    Onslow         Npv    5x10^12   398     0.76     ---    2.32   2
26  SPLAT 1                       VA    Augusta        MD     6g         62      ---     ---     ---   140
27  SPLAT 2                       VA    Augusta        MD     6g         62      ---     ---     ---   139
28  SPLAT Organic 1               VA    Augusta        MD     6g         62      ---     ---     ---   140
29  SPLAT Organic-2               VA    Augusta        MD     6g         62      ---     ---     ---   139

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