Table 33. Sequential Sampling Table for Potato Leafhopper (PLH) on
Alfalfa for Four Height Ranges

 

  Cumulative Number of PLH Adults
Crop height (in.) Sample (site) no. Don't treat Continue Sampling Treat
<3 3 < 2 3 - 8 > 9
  4 < 4 5 - 10 > 11
  5 < 5 6 - 12 > 13
  6 < 7 8 - 14 > 15
  7 < 9 10 - 15 > 16
  8 < 11 12 - 17 > 18
  9 < 13 14 - 19 > 20
  10 < 15 16 - 21 > 22
         
3 - 6 3 < 9 10 - 19 > 20
  4 < 14 15 - 24 > 25
  5 < 18 19 - 29 > 30
  6 < 23 24 - 34 > 35
  7 < 28 29 - 39 > 40
  8 < 33 34 - 44 > 45
  9 < 38 39 - 48 > 49
  10 < 43 44 - 53 > 54
         
7 - 10 3 < 19 20 - 40 > 41
  4 < 29 30 - 49 > 50
  5 < 39 40 - 59 > 60
  6 < 49 50 - 69 > 70
  7 < 59 60 - 79 > 80
  8 < 69 70 - 89 > 90
  9 < 79 80 - 99 > 100
  10 < 89 90 - 109 > 110
         
>10 3 < 44 45 - 74 > 75
  4 < 64 65 - 94 > 95
  5 < 84 85 - 114 > 115
  6 < 104 105 - 134 > 135
  7 < 124 125 - 154 > 155
  8 < 144 145 - 174 > 175
  9 < 164 165 - 194 > 195
  10 < 184 185 - 214 > 215
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