Effects of squash leaf trichome exudates and honey on adult feeding, survival, and fecundity of the squash bug (Heteroptera: Coreidae) egg parasitoid Gryon pennsylvanicum (Hymenoptera: Scelionidae)

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dc.contributor.author Nechols, James R.
dc.contributor.author Olson, D. L.
dc.date.accessioned 2013-03-25T20:39:49Z
dc.date.available 2013-03-25T20:39:49Z
dc.date.issued 1995-04-01
dc.identifier.uri http://hdl.handle.net/2097/15408
dc.description Citation: Olson, D., & Nechols, J. Effects of Squash Leaf Trichome Exudates and Honey on Adult Feeding, Survival, and Fecundity of the Squash Bug (Heteroptera: Coreidae) Egg Parasitoid Gryon pennsylvanicum (Hymenoptera: Scelionidae). Environmental Entomology, 24(2), 454-458. https://doi.org/10.1093/ee/24.2.454
dc.description.abstract A laboratory experiment was conducted to determine whether leaf exudates could be used as a source of adult nutrition for the squash bug, Auasa tristis (De Geer), egg parasitoid, Gryon pennsylvanicum (Ashmead), and to compare adult and progeny fitness traits when female Wasps were provided with squash leaves, a standard honey diet, a combination of leaves and honey, or water only Results showed that fecundity, progeny developmental rates, and progeny survival did not differ significantly when females were exposed to different dietary sources. Adult longevity was shorter on squash leaves without honey than on leaves with honey or the honey-only diet. However, reproductive fitness was not reduced because oviposition had been completed before death of the adult females. When only water was provided, parasitoid females lived only a few days. Observations showed that squash leaves have two kinds of trichomes (hair-like and peg-like), both of which produce droplets that are fed on by both sexes of G. pennsylvanicum. Nutrient analyses revealed that exudates from the hair-like trichomes are composed predominantly of monosaccharides (mainly glucose and galactose), and that the peg-like trichomes produce glucose and some protein. Thus, these trichomes appear to serve as extrafloral nectaries and may provide an important energy source for augmentatively released G. pennsylvanicum. en_US
dc.language.iso en_US en_US
dc.relation.uri https://doi.org/10.1093/ee/24.2.454 en_US
dc.rights Permission to archive granted by the Entomological Society of America, March 7, 2013. This article is the copyright property of the Entomological Society of America and may not be used for any commercial or other private purpose without specific written permission of the Entomological Society of America. en_US
dc.rights.uri https://academic.oup.com/journals/pages/self_archiving_policy_b
dc.subject Gryon pennsylvanicum en_US
dc.subject Egg parasitoid en_US
dc.subject Adult diet en_US
dc.subject Squash bug en_US
dc.title Effects of squash leaf trichome exudates and honey on adult feeding, survival, and fecundity of the squash bug (Heteroptera: Coreidae) egg parasitoid Gryon pennsylvanicum (Hymenoptera: Scelionidae) en_US
dc.type Text en_US
dc.date.published 1995 en_US
dc.citation.doi 10.1093/ee/24.2.454
dc.citation.epage 458 en_US
dc.citation.issn 1938-2936
dc.citation.issue 2 en_US
dc.citation.jtitle Environmental Entomology en_US
dc.citation.spage 454 en_US
dc.citation.volume 24 en_US
dc.citation Olson, D., & Nechols, J. Effects of Squash Leaf Trichome Exudates and Honey on Adult Feeding, Survival, and Fecundity of the Squash Bug (Heteroptera: Coreidae) Egg Parasitoid Gryon pennsylvanicum (Hymenoptera: Scelionidae). Environmental Entomology, 24(2), 454-458. https://doi.org/10.1093/ee/24.2.454
dc.contributor.authoreid jnechols en_US
dc.description.version Article: Publisher version


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