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Funded Project |
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Funding Program:
Regional IPM Grants (S-RIPM) |
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Project Title:
Dispersal and Life History of Megacopta cribraria from kudzu and implications for management in soybean |
Project Directors (PDs):
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Lead State: NC Lead Organization: North Carolina State University |
| Research Funding: $168,644 |
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Start Date: Sep-01-2013 End Date: Aug-31-2016 |
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Summary:
Megacopta cribraria was inadvertently introduced into the U.S. in 2009 and has since spread from a nine county area to 392 southeastern US counties. Kudzu and soybeans are its only known reproductive hosts, with yield losses of up to 76% reported from untreated soybean. The three objectives of this research are to determine the effect of generation, condition, and developmental host on life history characteristics, to determine what environmental, host quality, and/or physiological factors affect M. cribraria dispersal in the spring and fall, and to investigate the potential emigration of M. cribraria into soybeans planted at various dates and their potential impact on yield. For the first objective, manipulative experiments will be performed examining the role of generation, host choice, and crowding on adult performance (daily fecundity and flight capacity) to contextualize field experiment results. For the second objective, kudzu bug dispersal will identified using mark-recapture techniques from three kudzu patches with soybean nearby (1 km radius) will be chosen in NC, SC, and GA. For the third objective, small plot experiments from the same states will be planted once weekly beginning in mid-May and ending in mid-June, for four total planting dates, and will be further split using an insecticide spray. This proposal directly targets the first priority listing of the SRIPM. Specifically, we seek to address changes in pest complexes due to invasive pests and to address critical and emerging issues , including management of sucking insect pests of crops and new/important pests .
Objectives: Objective 1. Determine the effect of generation, condition, and developmental host on life history characteristics. Objective 2. Determine what environmental, host quality, and/or physiological factors affect M. cribraria dispersal from kudzu in the spring and fall, as well as the spatial distribution of the dispersal. Objective 3. Determine the potential immigration of M. cribraria into soybeans planted at various dates and their potential impact on yield. |
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