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Funded Project |
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Funding Program:
Critical Issues |
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Project Title:
IPM for soybean gall midge: understanding pest ecology and identifying management practices |
Project Directors (PDs):
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Lead State: NE Lead Organization: University of Nebraska-Lincoln |
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Cooperating State(s):
Iowa, South Dakota |
| Undesignated Funding: $50,000 |
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Start Date: Mar-01-2019 End Date: Feb-29-2020 |
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Pests Involved: soybean gall midge |
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Site/Commodity: soybean |
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Area of Emphasis: Strategic planning to address new or emerging pest management issue |
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Summary:
In June of 2018, entomologists in Nebraska, Iowa and South Dakota received reports of soybean fields with visible signs of dead or dying plants associated with soybean gall midge. Surveys initiated in these states and neighboring Minnesota found that 65 counties had some presence of soybean gall midge. Fields with significant damage had clear signs of gradient of dead or dying plants that dissipated with distance from the field edge. Historically, this insect has been of little concern with its presence being linked to soybean plants that had been previously damaged by hail or infected by a plant pathogen. The sudden widespread detection of soybean gall midge and its association with damaged or dying plants is of great concern to growers. Soybean gall midge is being considered as a new species, therefore, no ecological information is available on this pest. With limited knowledge, growers are likely to resort to calendar insecticide spray applications in an attempt to reduce pest pressure. This proposal would track adult soybean gall midge activity during the spring to provide growers with knowledge on when management practices might be warranted. Adult activity cages would be accompanied by multiple small plot planting dates of soybeans to determine if such cultural strategies can be used to mitigate losses. Due to the rapid expansion of this pest, a concentrated effort will be made to communicate adult soybean gall midge activity and organize field days to create a dialogue for future research objectives to address clientele needs with this pest. The impacts of this research would be evident in the spring through a reduction in unnecessary insecticide applications. Establishing this early network of clientele and researchers would help direct future research efforts and identify sustainable practices for soybean gall midge.
Objectives: 1) Expand effort to determine the emergence timing and source of adult soybean gall midge 2) Evaluate the risk for soybean gall midge infestation and damage across different planting date of soybeans. 3) Disseminate information on soybean gall midge and create dialogue with clientele to prioritize future research and develop practical pest management strategies. |
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