Olfactory attractiveness of flowering plants to the parasitoid Microplitis mediator: potential implications for biological control

@article{Belz2012OlfactoryAO,
  title={Olfactory attractiveness of flowering plants to the parasitoid Microplitis mediator: potential implications for biological control},
  author={Elodie Belz and Mathias K{\"o}lliker and Oliver Balmer},
  journal={BioControl},
  year={2012},
  volume={58},
  pages={163-173}
}
In agricultural landscapes, the lack of floral nectar can be a major difficulty for nectar feeding parasitoids. This problem can be reduced by the addition of suitable wildflowers. To date, flowers have mainly been studied in terms of effects on parasitoid fitness, not taking into account the essential role of flower attractiveness for foraging parasitoids. This study experimentally tested the olfactory attractiveness of five wildflowers (bishop’s weed, cornflower, buckwheat, candytuft, and… 

Figures from this paper

Contrasting olfactory responses of two egg parasitoids to buckwheat floral scent are reflected in field parasitism rates
TLDR
It is concluded that buckwheat strips can influence intraguild competition and hypothesize that the effect was mediated by floral volatiles.
Chemical ecology meets conservation biological control: identifying plant volatiles as predictors of floral resource suitability for an egg parasitoid of stink bugs
TLDR
The authors' results showed that access to buckwheat and basil flowers increased the parasitoid offspring, and integrating chemo-ecological methods into conservation biological control allowed us to identify a potential resource plant and attractive compounds for field studies.
Innate and learned olfactory attraction to flowering plants by the parasitoid Cotesia rubecula (Marshall, 1885) (Hymenoptera: Braconidae): Potential impacts on conservation biological control
TLDR
Not every flower offering accessible nectar is also innately attractive, it can still be suitable for conservation biological control purposes as feeding experience can change this attraction, and the application of mixtures containing attractive and rewarding flowers could help increase the success of such programs.
Floral Odors Can Interfere With the Foraging Behavior of Parasitoids Searching for Hosts
TLDR
Floral odors can act as background pollutants decreasing the attractiveness of chemical blends used by natural enemies to locate their hosts.
Effects of extrafloral and floral nectar of Centaurea cyanus on the parasitoid wasp Microplitis mediator : olfactory attractiveness and parasitization rates
TLDR
Results indicate that M. mediator may require the floral signals of open flowers to actually locate and exploit the plant’s extrafloral nectaries, demonstrating that accessible nectar sources may be insufficiently exploited if they are not attractive to parasitoids.
Color, odor, and species preferences of Copidosoma bakeri to prospective cover crops to enhance control of cutworms
Cutworms (Lepidoptera: Noctuidae) are economically important pests of multiple field crops, but are difficult to control with insecticides. Biological control with native parasitoids may offer a
Olfactory information use for foraging in "Microplitis mediator", a parasitoid of the cabbage moth "Mamestra brassicae"
TLDR
This study has shown that cornflower is a very promising floral subsidy, and indicates that M. mediator is able to use olfactory cues to identify potential food sources and has evolved preferences that could be exploited in biological control.
Biodiversity enhancement and utilization – Pest control in brassicas
TLDR
Experiments were conducted to test the olfactory attractiveness of different flowers as well as the influence of their nectar on the regulation of the cabbage moth and on the lifespan and parasitation performance of its antagonists (egg and larval parasitoids).
Interactions Between Flowering Plants and Arthropods in Organic Agroecosystems
TLDR
The value of using flowering plants as a conservation biological control tool to encourage pest parasitoids in organic farming is confirmed.
Alyssum (Lobularia maritima) selectively attracts and enhances the performance of Cotesia vestalis, a parasitoid of Plutella xylostella
TLDR
The suitability of three candidate nectar plants for use in brassica vegetables to suppress the globally significant pest, Plutella xylostella L. vestalis, and the contrasting effects of this set of plants illustrate the need to test multiple response variables and effects on both pest and natural enemy when seeking optimal nectar plant species forUse in a novel conservation biological control system.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 58 REFERENCES
Effects of flower attractiveness and nectar availability in field margins on biological control by parasitoids
TLDR
It is implied that tailoring nectar supply to the requirements of parasitoids holds potential to increase their effectiveness as biological control agents.
Assessing the suitability of flowering herbs as parasitoid food sources: flower attractiveness and nectar accessibility
TLDR
The results show that the mere presence of flowering plants in an agroecosystem is not sufficient to guarantee nectar supply for parasitoids, and underscores that mechanistic investigations can be a valuable tool in helping to tailor agroECosystems to the requirements of biological control agents.
Selective flowers to enhance biological control of cabbage pests by parasitoids
TLDR
The results stress the importance of plant screening to achieve plant selectivity and to maximize biological control of pests.
Nectar exploitation by herbivores and their parasitoids is a function of flower species and relative humidity.
TLDR
The results from the accessibility bioassay suggest that flowers where nectar is not accessible can have a negative impact on insect survival presumably by stimulating foraging without providing accessible nectar.
The Sweet Tooth of Adult Parasitoid Cotesia rubecula: Ignoring Hosts for Nectar?
TLDR
This work investigated the tendency of flowers and hosts to attract 1-day-old female Cotesia rubecula Marshall (Hymenoptera: Braconidae) with different feeding histories in a wind tunnel and found that well-fed wasps exhibited a preference for hosts and unfed wasps visited hosts and flowers in equal proportions.
Flower color affects tri-trophic-level biocontrol interactions
TLDR
Flight cage experiments showed that the adults of an egg parasitoid benefited from alyssum bearing white flowers to a greater extent than was the case for light pink, dark pink or purple flowered cultivars, despite all cultivars producing nectar.
Measuring parasitoid movement from floral resources in a vineyard
TLDR
It is indicated that RbCl can be used to mark parasitoids to measure their movement from floral resources and may be use to inform decisions on the deployment of appropriate flowering plant species in conservation biological control.
Attractiveness of common insectary and harvestable floral resources to beneficial insects
TLDR
Sweet alyssum consistently attracted the most hoverflies and the least bees, while potentially harvestable plants attracted few hoverflies, suggesting that plants should be screened for their attractiveness to not only the target biological control agent, but also to other potential competitors for floral resources.
Floral resources impact longevity and oviposition rate of a parasitoid in the field.
TLDR
The longevity and per capita fecundity of naturally occurring Diadegma insulare foraging in cabbage plots with and without borders of flowering buckwheat, Fagopyrum esculentum, as well as relationships between longevity, fecundy, sugar feeding and parasitism rates on larvae of the diamondback moth, Plutella xylostella are studied.
Orientation of the parasitic wasp, Cotesia vestalis (Haliday) (Hymenoptera: Braconidae), to visual and olfactory cues of field mustard flowers, Brassica rapa L. (Brassicaceae), to exploit food sources
TLDR
Results indicate that parasitoids orientate to flowers using visual and olfactory cues, respectively, depending on their own dietary state, as well as how they find and exploit food sources.
...
1
2
3
4
5
...