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United States Department of Agriculture

Agricultural Research Service

Research Project: Wild Hosts and Biological Control of the Invasive Spotted Wing Drosophila

Location: Horticultural Crops Research

Project Number: 2072-22000-037-08
Project Type: Specific Cooperative Agreement

Start Date: Sep 28, 2010
End Date: Aug 31, 2014

Objective:
1. Identify wild and ornamental hosts of spotted wing Drosophila (SWD) that serve as population reservoirs for infesting crop fields. 2. Test the effectiveness of predators for biological control of SWD. 3. Test the effectiveness of entomopathogenic nematodes for biological control of SWD.

Approach:
Wild and ornamental fruit will be picked weekly from residential areas, roadsides, growers’ fields in the Mid-Willamette Valley. A subset will be exposed to SWD in 5 replicated lab cages under no-choice conditions to determine if SWD lays eggs and successfully develops on various fruits. SWD-infested potted fruit plants will be placed outdoors in sets of five and spaced at least 50 m apart among a larger agricultural field. Orius will be released at a zero (control), medium and high rate within potted plant sites, with ten replicate sites per treatment. After one week, the infested fruit will be dissected and reared out to determine survivorship of SWD. SWD larvae and pupae (loose within dirt or within fruit) will be exposed to nematodes to determine infection rates. Documents SCA with Oregon State University.

Last Modified: 11/23/2014
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