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Nesting boxes: Improve tree pollination with wild bees (BIOFRUITNET Practice Abstract)

{Tool} Nesting boxes: Improve tree pollination with wild bees (BIOFRUITNET Practice Abstract). Creator(s): Jacquot, Maxime and Parveaud, Claude-Eric. Issuing Organisation(s): GRAB - Groupe de Recherche en Agriculture Biologique. Biofruitnet Practice Abstract, no. 033. (2022)

[thumbnail of Nesting boxes: Improve tree pollination with wild bees] PDF - Published Version - English (Nesting boxes: Improve tree pollination with wild bees)
[thumbnail of Nichoirs : Améliorer la pollinisation des arbres par les abeilles sauvages] PDF - Published Version - French/Francais (Nichoirs : Améliorer la pollinisation des arbres par les abeilles sauvages)
[thumbnail of Nistkästen: Verbesserung der Bestäubung von Obstbäumen durch Wildbienen] PDF - Published Version - German/Deutsch (Nistkästen: Verbesserung der Bestäubung von Obstbäumen durch Wildbienen)

Document available online at: https://orgprints.org/44721


Wild bees visit more flowers than honeybees; some can be active at lower temperatures (Picture 1). Thanks to these two advantages, they increase fruit yields.
Practical recommendation
• To make wild bee nesting logs, drill horizontal holes 2 to 10 mm in diameter and 9 cm deep in a piece of wood without bark of about 30 x 15 x 10 cm. Place the logs high up in the orchard or its immediate vicinity.
• To make a bundle of hollow sticks (Picture 2), cut hollow stems 20 cm long with an internal diameter of 2 to 10 cm (bamboo, reeds, elderberry). Assemble the stems into a bundle and place them in a tube made of waterproof material. Place the bundles in the plots with the stems horizontal.
• Many types of bee boxes are also available from specialist manufacturers (Picture 3).
Best combine these structures with the following measures:
• Sow flower strips in the orchard alleys and see that they start flowering when the apple blossom ends. This allows the wild bees active on apple blossoms to have pollen sources after apple blossoming has fin-ished (see Further reading).
• Mow weeds not simultaneously in all the alleys (e.g., only half or third of the alleys) to always keep some areas with flowers.
• During the flowering period of trees, weeds, or plant cover, avoid applying products that are toxic to bees and favour night spraying when bees are less active.
• Plant mixed hedgerows around orchards with early flowering species such as hazel, dogwood, alder, and wild cherries.

EPrint Type:Practice tool
What problem does the tool address?:Wild bee pollination is essential to produce fruits of good quality and quantity. However, few habitats and resources are available in orchards to accommodate these wild bees.
What solution does the tool offer?:To support wild bees in orchards, it is necessary to: set up melliferous plant cover (i.e., producing nectar and pollen), install artificial nesting boxes and not apply insecticide treatments during the flowering period of fruit trees.
Type of Practice Tool:Practice abstracts
Keywords:Pollinators, Ecosystem services
Agrovoc keywords:
ecosystem services
Subjects: Environmental aspects > Biodiversity and ecosystem services
Crop husbandry > Production systems > Fruit and berries
Research affiliation: European Union > Horizon 2020 > Biofruitnet
France > GRAB - Groupe de Recherche en Agriculture biologique
Horizon Europe or H2020 Grant Agreement Number:862850
Related Links:https://organic-farmknowledge.org/tool/44721, https://biofruitnet.eu
Project ID:ofk
Deposited By: Basler, Andreas
ID Code:44721
Deposited On:09 Dec 2022 16:45
Last Modified:28 Apr 2023 08:29
Document Language:English, German/Deutsch, French/Francais

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