Creepy Crawlies Protect Apples When Flowers are Planted on Farms
Published:15 Apr.2024    Source:University of Reading

Bugs including hoverflies, lacewings and ladybirds play an important role in keeping Britain's apples healthy, a new study has shown. Wildflower strips planted around apple orchards provide a habitat for predatory insects that prey on pests that deform and damage apples. Flower margins had been established next to five dessert apple orchards in the UK. A research team led by the University of Reading found that only 48% of trees had fruit damage compared to 80% in orchards without flowers.

 

The two-year study, published today in the Journal of Applied Ecology, suggests farmers could harvest up to an additional 2,420 kg per hectare (6.9%) of undamaged, premium apples by installing flower margins on orchards. By looking after our creepy crawlies, they can take better care of our apples. Planting flower margins near fruit trees is a sustainable way of preventing damage to crops as it reduces reliance on insecticides. They will get more good bugs on farms and better British food in supermarkets as more flower strips are added next to orchards.

 

The study utilised large, mature wildflower margins more than five meters wide and included grasses and flowers chosen to supply year-round food sources. The long-established nature of the margins gave time for diverse communities of predatory insects to build up. The research team found that flower margins reduced not only the spread of aphids on trees, but also how many fruits were attacked on infested trees. Simple conservation measures like dedicating orchard edge habitat for wildflowers could reduce reliance on pesticide sprays over the long term. Allowing pollinators and biocontrol insect species to thrive supporting sustainable food production.