Between 1994 and 2002 we authorised experimental trials of GM crop plants to take place at various sites in Hertfordshire, as set out in the following table. No trials have taken place in Hertfordshire since 2003.
Town or village Ordnance Survey grid reference Crop type Piccotts End TL 048 098 Oilseed rape Piccotts End TL 049 095 Oilseed rape Piccotts End TL 049 101 Oilseed rape Piccotts End TL 05 101 Oilseed rape Piccotts End TL 051 050 Oilseed rape Piccotts End TL 051 102 Oilseed rape Piccotts End TL 051 103 Oilseed rape Piccotts End TL 052 101 Oilseed rape Piccotts End TL 052 105 Oilseed rape Piccotts End TL 053 100 Oilseed rape Piccotts End TL054 104 Oilseed rape Piccotts End TL 055 103 Oilseed rape Piccotts End TL 066 114 Oilseed rape Piccotts End TL 067 117 Oilseed rape Piccotts End TL 068 115 Oilseed rape Piccotts End TL 069 118 Oilseed rape Redbourn TL 105 132 Oilseed rape Redbourn TL 110 129 Fodder beet Albury TL 422 233 Oilseed rape Albury TL 422 234 Oilseed rape Albury TL 431 232 Oilseed rape Patmore Heath TL 46 251 Oilseed rape Northchurch SP 97 111 Oilseed rape Harpenden TL 121 620 Wheat Harpenden TL 122 131 Wheat Harpenden TL 124 136 Wheat Harpenden TL 124 137 Wheat Harpenden TL 125 137 Wheat Harpenden TL 118 130 Maize Harpenden TL 121 140 Tobacco Harpenden TL 13 131 Potato 1 Best available information