New! Sign up for our free email newsletter.
Science News
from research organizations

Creepy crawlies protect apples when flowers are planted on farms

Date:
February 28, 2024
Source:
University of Reading
Summary:
Bugs including hoverflies, lacewings and ladybirds play an important role in keeping Britain's apples healthy, a new study has shown.
Share:
FULL STORY

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.

In 2020, 200,000 tonnes of dessert apples worth £158 million were produced in the United Kingdom. The two-year study, published today (Wednesday, 28 February) 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.

Lead author Charlotte Howard, from the University of Reading, said: "By looking after our creepy crawlies, we 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. We will get more good bugs on farms and better British food in supermarkets as more flower strips are added next to orchards."

Good margins for better harvests

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. Apples near flower borders had over a third less chance of fruit damage even during peak aphid outbreaks. Significant reductions in damaged crop extended up to 50 meters into orchards from the floral habitat.

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.

The research team, led by the University of Reading, included NIAB East Malling, Cranfield University and Syngenta. Flower margins were established on orchards in the UK by Avalon Produce, Worldwide Fruit and the UK Centre for Ecology and Hydrology.


Story Source:

Materials provided by University of Reading. Note: Content may be edited for style and length.


Journal Reference:

  1. Charlotte Howard, Michelle T. Fountain, Claire Brittain, Paul J. Burgess, Michael P. D. Garratt. Perennial flower margins reduce orchard fruit damage by rosy apple aphid, Dysaphis plantaginea (Homoptera: Aphididae). Journal of Applied Ecology, 2024; DOI: 10.1111/1365-2664.14598

Cite This Page:

University of Reading. "Creepy crawlies protect apples when flowers are planted on farms." ScienceDaily. ScienceDaily, 28 February 2024. <www.sciencedaily.com/releases/2024/02/240228115354.htm>.
University of Reading. (2024, February 28). Creepy crawlies protect apples when flowers are planted on farms. ScienceDaily. Retrieved April 15, 2024 from www.sciencedaily.com/releases/2024/02/240228115354.htm
University of Reading. "Creepy crawlies protect apples when flowers are planted on farms." ScienceDaily. www.sciencedaily.com/releases/2024/02/240228115354.htm (accessed April 15, 2024).

Explore More

from ScienceDaily

RELATED STORIES