We need to stop pests eating our food. Richard Pywell and Ben Woodcock argue that supporting native wildlife on farms is part of the answer.
Farmers have always been in a running battle with pests. We estimate using Defra statistics that in 2010, UK crops worth £715M were lost to insect pests. Chemical pesticides are crucial to controlling them, but the development of pest resistance, and key products being withdrawn amid fears about human and environmental health mean that alternative methods are increasingly important.
One solution is to promote native biodiversity that will kill pests within crops. Many native species have the potential to increase crop yields, so supporting biodiversity on farmland has more to offer than simply beautifying the countryside. For example, bees pollinate crops and predatory beetles eat pest aphids. In any case, the UK has signed the Convention on Biological Diversity, which requires that “by 2020 areas under agriculture, aquaculture and forestry are managed sustainably, ensuring conservation of biodiversity”.
Continue reading Protecting nature’s harvest