Comparing floral nectar and aphid honeydew diets on the longevity and nutrient levels of a parasitoid wasp

Jana C. Lee, George E. Heimpel, Gary L. Leibee

Research output: Contribution to journalArticle

140 Citations (Scopus)

Abstract

We compared the effects of floral nectar from buckwheat, Fagopyrum esculentum Moench, and honeydew produced by the soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae), on longevity, nutrient levels, and egg loads of the parasitoid Diadegma insulare Cresson (Hymenoptera: Ichneumonidae). Diadegma insulare lived for 2 days in control treatments of water or clean soybean leaves, for 6-7 days with honeydew, and in excess of 2 weeks with buckwheat nectar. Potential reasons for the superiority of buckwheat nectar over soybean aphid honeydew for extending the longevity of parasitoids include: (i) parasitoids ingest more sugars from floral sources, (ii) oligosaccharides in honeydew have a lower nutritional value than nectar sugars, and (iii) honeydew has antagonistic compounds. Overall sugar levels were lower in honeydew- vs. nectar-fed female wasps, suggesting a lower feeding rate, but other explanations cannot be excluded. Diadegma insulare eclosed with high levels of lipids and glycogen, and low levels of gut and storage sugars. All carbohydrates increased over the life of both nectar- and honeydew-fed wasps, but remained low or decreased in starved wasps. Lipid levels declined over the lifespan of female wasps, but females fed floral nectar showed the slowest rate of lipid decline. Diet did not affect egg load, probably because the females were not given hosts in the experiment.

Original languageEnglish (US)
Pages (from-to)189-199
Number of pages11
JournalEntomologia Experimentalis et Applicata
Volume111
Issue number3
DOIs
StatePublished - Jun 1 2004

Fingerprint

honeydew
nectar
wasp
aphid
parasitoid
Aphidoidea
diet
Diadegma insulare
Aphis glycines
nutrient
nutrients
buckwheat
sugar
sugars
soybean
lipid
parasitoids
lipids
egg
Fagopyrum esculentum

Keywords

  • Anthrone test
  • Diadegma insulare
  • Egg load
  • Fructose
  • Glycogen
  • Hymenoptera
  • Ichneumonidae
  • Lipid
  • Sugar feeding

Cite this

Comparing floral nectar and aphid honeydew diets on the longevity and nutrient levels of a parasitoid wasp. / Lee, Jana C.; Heimpel, George E.; Leibee, Gary L.

In: Entomologia Experimentalis et Applicata, Vol. 111, No. 3, 01.06.2004, p. 189-199.

Research output: Contribution to journalArticle

@article{db1562b479d14161948a4b578491293a,
title = "Comparing floral nectar and aphid honeydew diets on the longevity and nutrient levels of a parasitoid wasp",
abstract = "We compared the effects of floral nectar from buckwheat, Fagopyrum esculentum Moench, and honeydew produced by the soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae), on longevity, nutrient levels, and egg loads of the parasitoid Diadegma insulare Cresson (Hymenoptera: Ichneumonidae). Diadegma insulare lived for 2 days in control treatments of water or clean soybean leaves, for 6-7 days with honeydew, and in excess of 2 weeks with buckwheat nectar. Potential reasons for the superiority of buckwheat nectar over soybean aphid honeydew for extending the longevity of parasitoids include: (i) parasitoids ingest more sugars from floral sources, (ii) oligosaccharides in honeydew have a lower nutritional value than nectar sugars, and (iii) honeydew has antagonistic compounds. Overall sugar levels were lower in honeydew- vs. nectar-fed female wasps, suggesting a lower feeding rate, but other explanations cannot be excluded. Diadegma insulare eclosed with high levels of lipids and glycogen, and low levels of gut and storage sugars. All carbohydrates increased over the life of both nectar- and honeydew-fed wasps, but remained low or decreased in starved wasps. Lipid levels declined over the lifespan of female wasps, but females fed floral nectar showed the slowest rate of lipid decline. Diet did not affect egg load, probably because the females were not given hosts in the experiment.",
keywords = "Anthrone test, Diadegma insulare, Egg load, Fructose, Glycogen, Hymenoptera, Ichneumonidae, Lipid, Sugar feeding",
author = "Lee, {Jana C.} and Heimpel, {George E.} and Leibee, {Gary L.}",
year = "2004",
month = "6",
day = "1",
doi = "10.1111/j.0013-8703.2004.00165.x",
language = "English (US)",
volume = "111",
pages = "189--199",
journal = "Entomologia Experimentalis et Applicata",
issn = "0013-8703",
publisher = "Wiley-Blackwell",
number = "3",

}

TY - JOUR

T1 - Comparing floral nectar and aphid honeydew diets on the longevity and nutrient levels of a parasitoid wasp

AU - Lee, Jana C.

AU - Heimpel, George E.

AU - Leibee, Gary L.

PY - 2004/6/1

Y1 - 2004/6/1

N2 - We compared the effects of floral nectar from buckwheat, Fagopyrum esculentum Moench, and honeydew produced by the soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae), on longevity, nutrient levels, and egg loads of the parasitoid Diadegma insulare Cresson (Hymenoptera: Ichneumonidae). Diadegma insulare lived for 2 days in control treatments of water or clean soybean leaves, for 6-7 days with honeydew, and in excess of 2 weeks with buckwheat nectar. Potential reasons for the superiority of buckwheat nectar over soybean aphid honeydew for extending the longevity of parasitoids include: (i) parasitoids ingest more sugars from floral sources, (ii) oligosaccharides in honeydew have a lower nutritional value than nectar sugars, and (iii) honeydew has antagonistic compounds. Overall sugar levels were lower in honeydew- vs. nectar-fed female wasps, suggesting a lower feeding rate, but other explanations cannot be excluded. Diadegma insulare eclosed with high levels of lipids and glycogen, and low levels of gut and storage sugars. All carbohydrates increased over the life of both nectar- and honeydew-fed wasps, but remained low or decreased in starved wasps. Lipid levels declined over the lifespan of female wasps, but females fed floral nectar showed the slowest rate of lipid decline. Diet did not affect egg load, probably because the females were not given hosts in the experiment.

AB - We compared the effects of floral nectar from buckwheat, Fagopyrum esculentum Moench, and honeydew produced by the soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae), on longevity, nutrient levels, and egg loads of the parasitoid Diadegma insulare Cresson (Hymenoptera: Ichneumonidae). Diadegma insulare lived for 2 days in control treatments of water or clean soybean leaves, for 6-7 days with honeydew, and in excess of 2 weeks with buckwheat nectar. Potential reasons for the superiority of buckwheat nectar over soybean aphid honeydew for extending the longevity of parasitoids include: (i) parasitoids ingest more sugars from floral sources, (ii) oligosaccharides in honeydew have a lower nutritional value than nectar sugars, and (iii) honeydew has antagonistic compounds. Overall sugar levels were lower in honeydew- vs. nectar-fed female wasps, suggesting a lower feeding rate, but other explanations cannot be excluded. Diadegma insulare eclosed with high levels of lipids and glycogen, and low levels of gut and storage sugars. All carbohydrates increased over the life of both nectar- and honeydew-fed wasps, but remained low or decreased in starved wasps. Lipid levels declined over the lifespan of female wasps, but females fed floral nectar showed the slowest rate of lipid decline. Diet did not affect egg load, probably because the females were not given hosts in the experiment.

KW - Anthrone test

KW - Diadegma insulare

KW - Egg load

KW - Fructose

KW - Glycogen

KW - Hymenoptera

KW - Ichneumonidae

KW - Lipid

KW - Sugar feeding

UR - http://www.scopus.com/inward/record.url?scp=3042569618&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3042569618&partnerID=8YFLogxK

U2 - 10.1111/j.0013-8703.2004.00165.x

DO - 10.1111/j.0013-8703.2004.00165.x

M3 - Article

AN - SCOPUS:3042569618

VL - 111

SP - 189

EP - 199

JO - Entomologia Experimentalis et Applicata

JF - Entomologia Experimentalis et Applicata

SN - 0013-8703

IS - 3

ER -