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Assessing risks and benefits of floral supplements in conservation biological control

Content Provider	Springer Nature Link
Author	Winkler, Karin Wäckers, Felix L. Termorshuizen, Aad J. Lenteren, Joop C.
Copyright Year	2010
Abstract	The use of flowering field margins is often proposed as a method to support biological control in agro-ecosystems. In addition to beneficial insects, many herbivores depend on floral food as well. The indiscriminate use of flowering species in field margins can therefore lead to higher pest numbers. Based on results from field observations and laboratory experiments we assessed risks as well as benefits associated with the provision of nectar plants in field margins, using Brussels sprouts as a model system. Results show that Brussels sprouts bordered by nectar plants suitable for the cabbage white Pieris rapae L., suffered higher infestation levels by this herbivore. In contrast, nectar plants providing accessible nectar for the diamondback moth Plutella xylostella L., did not raise densities of P. xylostella larvae in the Brassica crop. Margins with Anethum graveolens L., selected on the basis of its suitability as nectar plant for parasitoids, significantly increased the number of adult Diadegma semiclausum Hellén in the crop. This didn’t translate into enhanced parasitism rates, as parasitism of P. xylostella by D. semiclausum exceeded 65 % in all treatments, irrespective of the plants in the field margin. Our findings emphasize the importance of taking a multitrophic approach when choosing flowering field margin plants for biocontrol or other ecosystem services.
Starting Page	719
Ending Page	727
Page Count	9
File Format	PDF
ISSN	13866141
Journal	BioControl
Volume Number	55
Issue Number	6
e-ISSN	15738248
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-06-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nectar Pieris rapae Plutella xylostella Diadegma semiclausum Herbivore Parasitoid Multitrophic interactions Indirect trophic interactions Biological control Ecosystem services Behavioural Sciences Animal Biochemistry Animal Ecology Agriculture Plant Pathology Entomology
Content Type	Text
Resource Type	Article
Subject	Insect Science Agronomy and Crop Science

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Feeding status of the parasitoid Diadegma semiclausum affects biological control of Plutella xylostella: a simulation study

Density suppression of Plutella xylostella (Lepidoptera:Yponomeutidae) by multiple releases of Diadegma semiclausum (Hymenoptera:Ichneumonidae) in cabbage fields in Iwate, northern Japan

Plutella xylostella ( diamondback moth ) and its parasitoid Diadegma semiclausum show different gustatory and longevity responses to a range of nectar and honeydew sugars

Identification of Two Diamondback Moth Parasitoids, Diadegma fenestrale and Diadegma semiclausum, Using LAMP for Application in Biological Control

Performance of Generalist and Specialist Herbivores and their Endoparasitoids Differs on Cultivated and Wild Brassica Populations

Performance of Generalist and Specialist Herbivores and their Endoparasitoids Differs on Cultivated and Wild Brassica Populations

Data from: Experimental evidence that the effectiveness of conservation biological control depends on landscape complexity (Dataset)

Diadegma semiclausum as a Possible Factor for the Horizontal Transmission of Microsporidial Disease of Diamondback Moth, Plutella xylostella L.

Potential Impact of Metarhizium Anisopliae on the Diamondback Moth (Lepidoptera: Plutellidae) and Its Parasitoid Diadegma Semiclausum (Hymenoptera: Ichneumonidae)

Assessing risks and benefits of floral supplements in conservation biological control

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Feeding status of the parasitoid Diadegma semiclausum affects biological control of Plutella xylostella: a simulation study

Density suppression of Plutella xylostella (Lepidoptera:Yponomeutidae) by multiple releases of Diadegma semiclausum (Hymenoptera:Ichneumonidae) in cabbage fields in Iwate, northern Japan

Plutella xylostella ( diamondback moth ) and its parasitoid Diadegma semiclausum show different gustatory and longevity responses to a range of nectar and honeydew sugars

Identification of Two Diamondback Moth Parasitoids, Diadegma fenestrale and Diadegma semiclausum, Using LAMP for Application in Biological Control

Performance of Generalist and Specialist Herbivores and their Endoparasitoids Differs on Cultivated and Wild Brassica Populations

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Diadegma semiclausum as a Possible Factor for the Horizontal Transmission of Microsporidial Disease of Diamondback Moth, Plutella xylostella L.

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Assessing risks and benefits of floral supplements in conservation biological control