Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, Diabrotica barberi) by a Soil-Dwelling Mite (Acari: Laelapidae: Stratiolaelaps scimitus)

Landscape diversification with flowering plants can benefit pollinators and natural enemies, although insect pests can also use floral resources for nutrition and chemoprotection. Corn rootworms (Coleoptera: Chrysomelidae, Diabrotica spp.) are major pests of corn (Zea may...

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Autores principales:	Deirdre A. Prischmann-Voldseth, Stephanie J. Swenson, Robert Brenner
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sunflower <i>Helianthus</i> pollenivory oophagy Science Q
Acceso en línea:	https://doaj.org/article/d818034852fe45af8d0977f787afd781
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spelling	oai:doaj.org-article:d818034852fe45af8d0977f787afd7812021-11-25T17:59:14ZPollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)10.3390/insects121109792075-4450https://doaj.org/article/d818034852fe45af8d0977f787afd7812021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4450/12/11/979https://doaj.org/toc/2075-4450Landscape diversification with flowering plants can benefit pollinators and natural enemies, although insect pests can also use floral resources for nutrition and chemoprotection. Corn rootworms (Coleoptera: Chrysomelidae, <i>Diabrotica</i> spp.) are major pests of corn (<i>Zea mays</i> L.), and while subterranean larvae primarily feed on corn roots, adult rootworms commonly consume floral resources from other plant species. We quantified the species, density, and sex of adult corn Diabroticite rootworm beetles on wild and cultivated sunflower, corn, and squash, quantified pollen within the bodies of adult northern corn rootworms [NCR, <i>D. barberi</i> (Smith & Lawrence)], and investigated how consumption of sunflower and corn pollen by NCR adults impacted predation of their eggs by two soil-dwelling mites with different feeding specialization. NCR were the most common Diabroticite species on sunflower inflorescences and western corn rootworm (WCR, <i>D. v. virgifera</i> LeConte) were more abundant in corn and squash blossoms. Pollen feeding by NCR adults did not impact egg predation by omnivorous <i>Tyrophagus</i> <i>putrescentiae</i> (Schrank) (Acari: Sarcoptiformes, Acaridae), but predatory <i>Stratiolaelaps</i> <i>scimitus</i> (Womersley) (Acari: Mesostigmata, Laelapidae) ate eggs less frequently and took longer to feed on eggs from NCR females that had fed on sunflower pollen. This research suggests pollen feeding by adult NCR can impact predation of their eggs. While increasing plant diversity can benefit natural enemies and pest control within agroecosystems, it is important to consider how floral resources alter dietary preferences of biocontrol agents.Deirdre A. Prischmann-VoldsethStephanie J. SwensonRobert BrennerMDPI AGarticlesunflower<i>Helianthus</i>pollenivoryoophagyScienceQENInsects, Vol 12, Iss 979, p 979 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sunflower <i>Helianthus</i> pollenivory oophagy Science Q
spellingShingle	sunflower <i>Helianthus</i> pollenivory oophagy Science Q Deirdre A. Prischmann-Voldseth Stephanie J. Swenson Robert Brenner Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
description	Landscape diversification with flowering plants can benefit pollinators and natural enemies, although insect pests can also use floral resources for nutrition and chemoprotection. Corn rootworms (Coleoptera: Chrysomelidae, <i>Diabrotica</i> spp.) are major pests of corn (<i>Zea mays</i> L.), and while subterranean larvae primarily feed on corn roots, adult rootworms commonly consume floral resources from other plant species. We quantified the species, density, and sex of adult corn Diabroticite rootworm beetles on wild and cultivated sunflower, corn, and squash, quantified pollen within the bodies of adult northern corn rootworms [NCR, <i>D. barberi</i> (Smith & Lawrence)], and investigated how consumption of sunflower and corn pollen by NCR adults impacted predation of their eggs by two soil-dwelling mites with different feeding specialization. NCR were the most common Diabroticite species on sunflower inflorescences and western corn rootworm (WCR, <i>D. v. virgifera</i> LeConte) were more abundant in corn and squash blossoms. Pollen feeding by NCR adults did not impact egg predation by omnivorous <i>Tyrophagus</i> <i>putrescentiae</i> (Schrank) (Acari: Sarcoptiformes, Acaridae), but predatory <i>Stratiolaelaps</i> <i>scimitus</i> (Womersley) (Acari: Mesostigmata, Laelapidae) ate eggs less frequently and took longer to feed on eggs from NCR females that had fed on sunflower pollen. This research suggests pollen feeding by adult NCR can impact predation of their eggs. While increasing plant diversity can benefit natural enemies and pest control within agroecosystems, it is important to consider how floral resources alter dietary preferences of biocontrol agents.
format	article
author	Deirdre A. Prischmann-Voldseth Stephanie J. Swenson Robert Brenner
author_facet	Deirdre A. Prischmann-Voldseth Stephanie J. Swenson Robert Brenner
author_sort	Deirdre A. Prischmann-Voldseth
title	Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
title_short	Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
title_full	Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
title_fullStr	Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
title_full_unstemmed	Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)
title_sort	pollen feeding reduces predation of northern corn rootworm eggs (coleoptera: chrysomelidae, <i>diabrotica barberi</i>) by a soil-dwelling mite (acari: laelapidae: <i>stratiolaelaps</i> <i>scimitus</i>)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d818034852fe45af8d0977f787afd781
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Pollen Feeding Reduces Predation of Northern Corn Rootworm Eggs (Coleoptera: Chrysomelidae, <i>Diabrotica barberi</i>) by a Soil-Dwelling Mite (Acari: Laelapidae: <i>Stratiolaelaps</i> <i>scimitus</i>)

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