A court room battle over a 0.4 hectare vege patch began in Wellington today. GE Free NZ argued in the High Court that Crop and Food Research is not monitoring the adverse effects of a trial of genetically engineered vegetables which has already begun on a 0.4 hectare plot in the Lincoln area. The cauliflowers, cabbages, broccoli and forage kale, known as brassicas, contain genes derived from soil bacterium to counter pests.