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Insects 2017, 8(3), 65; doi:10.3390/insects8030065

Ecosystem-Based Incorporation of Nectar-Producing Plants for Stink Bug Parasitoids

Crop Protection & Management Research Laboratory, USDA, ARS, Tifton, GA 31793, USA
Academic Editor: Brian T. Forschler
Received: 31 May 2017 / Revised: 17 June 2017 / Accepted: 20 June 2017 / Published: 24 June 2017
(This article belongs to the Special Issue Habitat Management in Agroecosystems)
View Full-Text   |   Download PDF [688 KB, uploaded 26 June 2017]   |  

Abstract

Adult parasitoids of pest insects rely on floral resources for survival and reproduction, but can be food-deprived in intensively managed agricultural systems lacking these resources. Stink bugs are serious pests for crops in southwest Georgia. Provisioning nectar-producing plants for parasitoids of stink bugs potentially can enhance biocontrol of these pests. Knowledge of spatial and temporal availability and distribution of stink bugs in host plants is necessary for appropriate timing and placement of flowering plants in agroecosystems. Stink bugs move between closely associated host plants throughout the growing season in response to deteriorating suitability of their host plants. In peanut-cotton farmscapes, stink bugs develop in peanut, and subsequently the adults disperse into adjacent cotton. Parasitism of Nezara viridula (L.) adults by Trichopoda pennipes (F.) at the peanut-cotton interface was significantly higher in cotton with a strip of milkweed or buckwheat between the two crops than in cotton alone. Milkweed and buckwheat also provided nectar to a wide range of insect pollinators. Monarch butterflies fed on milkweed. When placed between peanut and cotton, a strip of soybean was an effective trap crop for cotton, reducing economic damage. Incorporation of buckwheat near soybean enhanced parasitism of Euschistus servus (Say) eggs by Telenomus podisi Ashmead in cotton. In conclusion, nectar provision enhances biocontrol of stink bugs, acts together with other management tactics for stink bug control, and aids in conservation of natural enemies, insect pollinators, and the monarch butterfly. View Full-Text
Keywords: parasitoids; nectar-provision; biocontrol; stink bugs; pollination; conservation parasitoids; nectar-provision; biocontrol; stink bugs; pollination; conservation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Tillman, G. Ecosystem-Based Incorporation of Nectar-Producing Plants for Stink Bug Parasitoids. Insects 2017, 8, 65.

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