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Christian H. Krupke
Purdue University
64Publications
21H-index
2,426Citations
Publications 65
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Agricultural use of the neonicotinoid clothianidin (CLO) as a seed treatment of corn and soybeans has been linked to contamination of waterways and irrigation water. By analyzing samples collected from field lysimeters with liquid chromatography tandem mass spectrometry (LC-MS), this study reports the highest CLO concentrations within leachate following planting, with maximum concentrations occurring 4 weeks post-planting (3370 ng L–1). This concentration is approximately 10× greater than previo...
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#1Spyridon Mourtzinis (UW: University of Wisconsin-Madison)H-Index: 9
#2Christian H. Krupke (Purdue University)H-Index: 21
Last.Shawn P. Conley (UW: University of Wisconsin-Madison)H-Index: 16
view all 23 authors...
Neonicotinoids are the most widely used insecticides worldwide and are typically deployed as seed treatments (hereafter NST) in many grain and oilseed crops, including soybeans. However, there is a surprising dearth of information regarding NST effectiveness in increasing soybean seed yield, and most published data suggest weak, or inconsistent yield benefit. The US is the key soybean-producing nation worldwide and this work includes soybean yield data from 194 randomized and replicated field st...
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#1Daniela T. Pezzini (UMN: University of Minnesota)H-Index: 2
#2Christina D. DiFonzo (MSU: Michigan State University)H-Index: 19
Last.Robert L Koch (UMN: University of Minnesota)H-Index: 20
view all 12 authors...
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#1Daniela T. Pezzini (UMN: University of Minnesota)H-Index: 2
#2Christina D. DiFonzo (MSU: Michigan State University)H-Index: 19
Last.Robert L Koch (UMN: University of Minnesota)H-Index: 20
view all 13 authors...
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#1Jocelyn L Smith (U of G: University of Guelph)H-Index: 6
#2Christina D. DiFonzo (MSU: Michigan State University)H-Index: 19
Last.Christian H. Krupke (Purdue University)H-Index: 21
view all 5 authors...
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#1Sally V. Taylor (VT: Virginia Tech)H-Index: 3
#2Christian H. Krupke (Purdue University)H-Index: 21
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#1A M Alford (Purdue University)
#2Christian H. Krupke (Purdue University)H-Index: 21
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1 CitationsSource
#1Christian H. Krupke (Purdue University)H-Index: 21
#2Jeffrey D. Holland (Purdue University)H-Index: 10
Last.Brian D. Eitzer (Connecticut Agricultural Experiment Station)H-Index: 26
view all 4 authors...
Summary Neonicotinoid insecticides are routinely used as seed treatments on most grain and oilseed crops in the USA, yet the extent and likelihood of spread of insecticide residues during planting has not previously been quantified. Honey bees, Apis mellifera, are highly mobile and highly sensitive to neonicotinoid residues, presenting an opportunity to estimate non-target exposures to neonicotinoids in mobile insects. We measured neonicotinoid dust drift during maize sowing and used sites of ma...
26 CitationsSource
#1Christian H. Krupke (Purdue University)H-Index: 21
#2Adam M. Alford (Purdue University)H-Index: 2
Last.Kelton Welch (Purdue University)H-Index: 1
view all 10 authors...
BACKGROUND A two year, multi-state study was conducted to assess the benefits of using soybean seed treated with the neonicotinoid thiamethoxam to manage soybean aphid in the upper Midwestern US and compare this approach with an integrated pest management (IPM) approach that included monitoring soybean aphids and treating with foliar-applied insecticide only when the economic threshold was reached. Concentrations of thiamethoxam in soybean foliage were also quantified throughout the growing seas...
15 CitationsSource
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