Effectiveness of managed populations of wild and honey bees as supplemental pollinators of sour cherry (<i>Prunus cerasus</i>L.) under different climatic conditions

Hansted, Lise; Grout, B. W. W.; Toldam‐Andersen, Torben Bo; Eilenberg, Jørgen

doi:10.1080/09064710.2014.971051

Cited by 6 publications

(5 citation statements)

References 54 publications

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“…However, higher quality of strawberry yield was recorded from on-farm site due to frequent pollination by solitary bees. That is in contrary to the findings revealed by Hansted et al (2015) that showed a rise in fruit set and yield when bees were kept close or within an orchard.…”

Section: Discussioncontrasting

confidence: 99%

Managed bees as pollinators and vectors of bio control agent against grey mold disease in strawberry plantations

Macharia¹,

Gikungu²,

Karanja³

et al. 2020

Afr. J. Agric. Res.

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Section: Discussioncontrasting

confidence: 99%

Managed bees as pollinators and vectors of bio control agent against grey mold disease in strawberry plantations

Macharia¹,

Gikungu²,

Karanja³

et al. 2020

Afr. J. Agric. Res.

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“…Second, colonies can be very different in terms of quality and quantity of bees and can vary during the flowering season. For example, the size of a colony can vary greatly from 10,000 and 40,000 individuals across studies (10,000 in Hansted, Grout, Toldam‐Andersen, & Eilenberg, ; 20,000 in Stern et al., ; 25,000 in Walters, ; 30,000 in Aras, De Oliveira, & Savoie, ; 40,000 in Quinet et al., ). Another point concerns the plasticity of the working organization in the colony to respond to environmental changes.…”

Section: Discussionmentioning

confidence: 99%

Impacts of honeybee density on crop yield: A meta‐analysis

Rollin

Garibaldi

2019

Journal of Applied Ecology

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1. There is increasing recognition that pollination deficits are limiting crop yields world-wide. However, management strategies for optimal insect pollination are still unclear for most crops. Current management focuses on providing high densities of honeybees, but recommended densities are highly variable, even within single crops and cultivars.2. We performed an extensive literature search to record honeybee densities (colony density and/or flower visitation rates) and crop productivity (fruit set, seed set, fruit weight and/or yield). Effect sizes were represented as the difference in crop productivity between the two most extreme levels of honeybee densities.3. Out of 795 reviewed studies, only 22 analysed the effect of at least two levels of honeybee densities on crop productivity (reporting 60 resulting effect sizes in total). Moreover, few recommendations for crop pollination management are based on results from controlled experimental designs, and with comparable methodology.4. We found that both colony density and visitation rates increased all the productivity variables. However, effects were nonlinear for visitation rates, suggesting that there is an optimum (mean of 8-10 visits per flower) beyond which more honeybees are not beneficial (and can even be detrimental) for crop productivity. 5. Effect sizes for visitation rates were greater than that for colony densities, suggesting that visitation rates are a more direct measure of the pollination process.Data on the relation between colony density and visitation rates are lacking.Interestingly, effect sizes for visitation rates were greater for crops with separate sexes than those with hermaphroditic flowers; therefore, the benefits of honeybee pollination vary according to the crop biology.6. Synthesis and applications. Current practices for crop pollination assume that more honeybees are always better for crop yield, even if the effect of this management on crop production still unclear. In contrast, our analyses suggest that there is an optimum for honeybee densities. Despite the importance of honeybees and pollinator-dependent crops world-wide, there is a lack of studies designed for finding such an optimal level of crop pollination. Our analyses further suggest that visitation rates could be used as a proxy to guide management recommendations such as colony density and spatial arrangement.

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“…Bumble bees are more efficient than honey bees for some crops, such as tomatoes, strawberries and peppers (Ahmad et al, ; Kwon & Saeed, ; Trillo et al, ); thus, bumble bees deposit more pollen grains on the stigmas of flowers (Willmer et al, ). Moreover, bumble bees are also used for species of the genus Prunus as almond (Dag, Zipori, & Pleser, ; Kodad & Socias i Company, ), plum tree (Calzoni & Speranza, ) and cherry tree (Hansted, Grout, Toldam‐Andersen, & Eilenberg, ) to improve the fruit set in these crops. For the almond crop, bumble bees seem to be particularly suitable as pollinators, as they can forage in unfavourable conditions (low temperatures and even on rainy days) (Ahmad et al, ; Goulson, ; Sheikh et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Bumble bees are more efficient than honey bees for some crops, such as tomatoes, strawberries and peppers (Ahmad et al, 2015;Kwon & Saeed, 2003;Trillo et al, 2018); thus, bumble bees deposit more pollen grains on the stigmas of flowers (Willmer et al, 1994). Moreover, bumble bees are also used for species of the genus Prunus as almond (Dag, Zipori, & Pleser, 2006;, plum tree (Calzoni & Speranza, 1998) and cherry tree (Hansted, Grout, Toldam-Andersen, & Eilenberg, 2015) to improve the fruit set in these crops.…”

mentioning

confidence: 99%

Improvement of almond production usingBombus terrestris(Hymenoptera: Apidae) in Mediterranean conditions

Marqués

Juan

Ruiz³

et al. 2019

J Applied Entomology

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Almond trees are one of the most important crops in the Balearic Islands. The pollination of almonds is limited to the activity of insects, and cross‐pollination is necessary for fruit development. Currently, honey bees and wild bee populations are declining considerably due to multiple causes, such as the use of pesticides, diseases and habitat loss. An alternative to increase the almond production is the use of commercial pollinators. In this long‐term (3 years) study, the effect of the introduction of Bombus terrestris colonies on almond production was evaluated in two orchards. Two experimental designs were carried out to study the best management of this pollinator. For 2 years, all bumble bee colonies were placed in the middle of the plot and during the last year, the bumble bee colonies were distributed homogenously in the plot. Fruit set and the foraging behaviour of bumble bees during the blossoming period was determined, and the effect of different environmental variables on the visitation rate of bumble bees was assessed by means of a generalized linear mixed model (GLMM). Moreover, for the first time, the spatial distribution of fruit set was evaluated. Our results show that fruit set was significantly higher in the fields where B. terrestris had been introduced than in the control plots. This increased production resulted in a positive economic balance for the farmer. Moreover, bumble bees showed to prefer trees in a southwest orientation that were close to their colony. The activity of bumble bees showed to be significantly influenced by wind speed (the higher the speed the more flowers are visited by B. terrestris) and time after flowering (visitation rate decreased with days after flowering). In order to improve its management and obtain the highest possible almond production, it is important to understand the activity and behaviour of this pollinator.

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Effectiveness of managed populations of wild and honey bees as supplemental pollinators of sour cherry (Prunus cerasusL.) under different climatic conditions

Cited by 6 publications

References 54 publications

Managed bees as pollinators and vectors of bio control agent against grey mold disease in strawberry plantations

Managed bees as pollinators and vectors of bio control agent against grey mold disease in strawberry plantations

Impacts of honeybee density on crop yield: A meta‐analysis

Improvement of almond production usingBombus terrestris(Hymenoptera: Apidae) in Mediterranean conditions

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