Footprints and Ootheca of Lycorma delicatula Influence Host-Searching and -Acceptance of the Egg-Parasitoid Anastatus orientalis.

Autor:	Malek R; Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, TN, Italy.; Research and Innovation Center, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy., Kaser JM; Beneficial Insects Introduction Research Unit, USDA Agricultural Research Service, Newark, DE., Broadley HJ; Animal and Plant Health Inspection Service, USDA, Plant Protection and Quarantine, Science and Technology, Buzzards Bay, MA.; Department of Environmental Conservation, University of Massachusetts, Amherst, MA., Gould J; Animal and Plant Health Inspection Service, USDA, Plant Protection and Quarantine, Science and Technology, Buzzards Bay, MA., Ciolli M; Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, TN, Italy.; Center for Agriculture, Food and Environment (C3A), University of Trento, San Michele all'Adige, TN, Italy., Anfora G; Research and Innovation Center, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy.; Center for Agriculture, Food and Environment (C3A), University of Trento, San Michele all'Adige, TN, Italy., Hoelmer KA; Beneficial Insects Introduction Research Unit, USDA Agricultural Research Service, Newark, DE.
Jazyk:	angličtina
Zdroj:	Environmental entomology [Environ Entomol] 2019 Dec 02; Vol. 48 (6), pp. 1270-1276.
DOI:	10.1093/ee/nvz110
Abstrakt:	The spotted lanternfly, Lycorma delicatula White (1845) (Hemiptera: Fulgoridae), is an invasive insect that was first reported in North America in Berks County, Pennsylvania, in 2014. It is a polyphagous phloem feeder that attacks over 70 plant species, threatening the agricultural, lumber, and ornamental industries of North America. Infestations of the pest have been reported in several U.S. counties, and a lack of endemic predators and parasitoids feeding on L. delicatula suggests a release from natural enemies in the invaded range. An egg-parasitoid Anastatus orientalis (Hymenoptera: Eupelmidae) was reported attacking L. delicatula at high rates in its native range and may play a key role in reducing its populations there. To better understand the foraging behavior of A. orientalis, a series of behavioral experiments were conducted to determine successful parasitism and behavioral responses to traces left by adult L. delicatula and to the oothecae which cover their eggs. Our results suggest that wasps detected chemical traces left by L. delicatula adults while walking on surfaces and exhibited a strong arrestment response. Moreover, wasps preferred to oviposit in egg masses with intact oothecae. The implications of these findings are herein discussed with regard to the exploitation of host kairomones by foraging wasps, as well as to its ability to overcome host structural defenses. (Published by Oxford University Press on behalf of Entomological Society of America 2019.)
Databáze:	MEDLINE
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