EARLY findings of a £1million study launched last year have revealed that flying predators such as hoverflies, ladybirds and parasitic wasps are a vital component in the campaign to reduce pesticides on arable land.

Scientists from The Game Conservancy Trust carried out field trials during the summer to determine how effective predatory insects were at reducing aphid numbers, a process known as biocontrol.

The results of the experiment were revealing and showed that while all natural predators were effective at eliminating aphids, flying predators were the best.

Dr John Holland, head of entomology with the trust, said: "Next season we will investigate the proportion of the farm that needs to be devoted to insect-rich habitat and are looking for farmers to participate."

The findings of the study will be used to provide practical guidance to farmers on biological control through habitat manipulation.

For information please contact Dr John Holland on 01425 651035 or email jholland@gct.org.uk