Comparing different floral resources on the longevity of a parasitic wasp

1 The effects of floral resources of several important non-crop host plants of Lygus lineolaris on the longevity of Anaphes iole, one of its natural enemies, was studied. 2 Median longevity of A. iole wasps provisioned with floral resources (Erigeron annuus, Oenothera speciosa, Lamium amplexicaule,...

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Bibliographic Details
Published in:Agricultural and forest entomology 2008-02, Vol.10 (1), p.23-28
Main Authors: Williams, Livy III, Hendrix, Donald L
Format: Article
Language:English
Subjects:
Anaphes
Anaphes iole
biological control
biological control agents
carbohydrates
chemical composition
Comparative studies
dietary carbohydrate
Entomology
floral resources
flowers
Flowers & plants
high-performance anion-exchange chromatography
host plants
Insects
Life expectancy
longevity
Lygus
Lygus lineolaris
nectar
nutritive value
parasitoids
pollen
Predation
sugars
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Summary:1 The effects of floral resources of several important non-crop host plants of Lygus lineolaris on the longevity of Anaphes iole, one of its natural enemies, was studied. 2 Median longevity of A. iole wasps provisioned with floral resources (Erigeron annuus, Oenothera speciosa, Lamium amplexicaule, and Capsella bursa-pastoris) was in the range 1.27-3.24 days, and did not differ from wasps in the distilled water only control (1.46-2.81 days), but was less than median longevity of wasps provisioned with distilled water + sucrose (5.30-12.46 days). No difference in longevity was observed between gender, although females usually lived slightly longer than males. 3 High-performance anion-exchange chromatography analyses of O. speciosa floral nectar revealed that the major carbohydrate components were sucrose, glucose, and fructose. 4 The results indicate that the floral resources of some non-crop plants that serve as important reproductive hosts for L. lineolaris offer little or no benefit to A. iole.
ISSN:1461-9555
1461-9563
DOI:10.1111/j.1461-9563.2007.00355.x