Wild bees: enhancing pollination efficiency in sweet cherry orchards

25 Jul 2024
1208

Recent studies conducted in Belgium and Germany have highlighted the crucial role of wild bees, such as bumblebees and mason bees, in enhancing the pollination efficiency of honeybees in sweet cherry orchards. This research reveals that wild bees are not only excellent pollinators but also significantly improve the pollination performance of honeybees, thus providing a double benefit.

In orchards, particularly in sweet cherry orchards, cross-pollination is essential for fruit production. This process requires pollen transfer between compatible cultivars, often planted in different rows. Insects that frequently move between the rows increase the chances of successful cross-pollination.

Honeybees, known for their methodical foraging habits, tend to visit flowers on the same tree, which limits their effectiveness in cross-pollination. In contrast, wild bees such as bumblebees and mason bees exhibit more erratic foraging patterns, often changing trees and rows, thereby improving pollination.

The Belgian study focused on sweet cherry trees and observed the interaction between bumblebees and honeybees. The presence of bumblebees, particularly wild queens, was found to significantly influence honeybees’ behavior; they increased the row-switching frequency by ten times. Additionally, honeybees' flower visitation rate per minute also rose with the number of bumblebees around.

This behavior modification can potentially increase the pollination efficiency of honeybees, leading to greater fruit set. Similarly, research conducted in Germany examined the relationship between honeybee numbers and cherry fruit set in orchards with varying populations of mason bees.

Image 1.

The study found a positive correlation between the number of honeybees and fruit set, but only in orchards with high mason bee populations. In orchards with fewer mason bees, this positive relationship was absent. The results suggest that mason bees, like bumblebees, alter honeybee behavior, enhancing their pollination efficiency.

These studies underscore the importance of conserving wild bee populations in and around orchards. Wild bees not only contribute directly to pollination but also amplify the contribution of honeybees. This dual role underscores the value of conservation and implementation of measures to support wild bee populations.

Strategies such as planting mixed hedgerows and allowing wild herbaceous plants to bloom at field margins provide nesting opportunities for mason bees and other wild bees. By creating a favorable environment for wild bees, growers can reduce their reliance on honeybees alone, ensuring more stable and effective pollination services.

The synergistic effect of wild bees on the pollination performance of honeybees has profound implications for agricultural practices and fruit production. Promoting wild bees conservation and management can lead to improvements in yield and quality. Integrating wild bee support into agricultural landscapes represents a promising strategy for enhancing pollination services and ensuring the sustainability of orchards.

Source: Eeraerts, Maxime & Osterman, Julia. (2024). Wild bees improve honeybees' pollination contribution.
Image: Orto da coltivare

Andrea Giovannini
University of Bologna (IT)


Cherry Times - All rights reserved

What to read next

Somercotes (Tasmania) cherries ready for a promising season

Production

04 Nov 2024

The Somercotes farm was founded in 1823 and currently produces around 20 varieties of cherries on 50 hectares, With the Tasmanian cherry harvest season now imminent, the Somercotes team is very excited about this year's prospects.

Rivermaid: efficiency and quality with artificial intelligence

Post-harvest​

29 Oct 2024

"This artificial intelligence-driven cherry sorting machine represents more than just a new machine; it is a key component in our expansion strategy, improving the capabilities and flexibility of our business."

In evidenza

Little Cherry Disease threatens cherry orchards in Washington State: growers speak out

Crop protection

22 Aug 2025

Little Cherry Disease (LCD) is damaging cherry orchards across Washington State, with growers reporting severe losses. Tree removals and bitter, undersized fruit are symptoms of this threat—comparable to citrus greening (HLB) in Florida’s citrus industry.

Organic fertilizers and compost: sustainable growth in organic orchards in Puglia

Tech management

22 Aug 2025

In Puglia, research on organic orchards highlights how compost and organic fertilizers boost yield, improve soil health, and enhance plant resilience. A sustainable approach that supports Mediterranean organic farming while delivering environmental and agronomic benefits.

Tag Popolari