Plant Health Progress · 2016 · 39 citations · 34 references
AgricultureAgricultural EconomicsEntomologyAgricultural EntomologyCrop ProductionCrop ProtectionAgricultural Production EconomicsCrop Pest InsectsEconomic ThresholdsEconomic Thresholds For Pest ManagementPest ControlPest SuppressionAgricultural Input CostsEconomic Threshold AnalysisEconomic Threshold DeterminationInsect Pest ControlInsect Pest ManagementSoybean Insect PestsSoybean PestsThreshold-based Pest Management
Soybean aphid, Aphis glycines Matsumura, remains the key insect pest of soybean, Glycine max (L.) Merrill, in the north-central United States. Management of this pest has relied primarily on scouting and application of foliar insecticides based on an economic threshold (ET) of 250 aphids per plant. This review explains why this ET remains valid for soybean aphid management, despite changes in crop value and input costs. In particular, we review how soybean aphid impacts soybean yield, the role of biology and economics in recommendations for soybean aphid management, and the short- and long-term consequences of inappropriately timed insecticide applications. Accepted for publication 13 December 2016.
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