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Efficacy of Insecticide Seed Treatments and Foliar Insecticides on Aphid Control in Wheat, 2013 (Test 1)

Efficacy of Insecticide Seed Treatments and Foliar Insecticides on Aphid Control in Wheat, 2013... applyparastyle "fig//caption/p[1]" parastyle "FigCapt" applyparastyle "fig" parastyle "Figure" Arthropod Management T ests, 46(1), 2021, 1–1 doi: 10.1093/amt/tsaa113 Section F: Field & Cereal Crops WINTER WHEAT: Triticum aestivum, L., ‘Variety Unknown’ HeadA=HeadB=HeadA=HeadB/HeadA Efficacy of Insecticide Seed Treatments and Foliar HeadB=HeadC=HeadB=HeadC/HeadB Insecticides on Aphid Control in Wheat, 2013 (Test 1) HeadC=HeadD=HeadC=HeadD/HeadC 1 1 1 2,3 Extract3=HeadA=Extract1=HeadA Adam Whalen, Angus L. Catchot, Dung Bao, and Whitney D. Crow History=Text=History=Text_First Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi EDI_HeadA=EDI_HeadB=EDI_HeadA=EDI_HeadB/HeadA 2 State, MS 39762, Delta Mississippi Research and Extension Center, Mississippi State University, Stoneville, MS 38776, and Corresponding author, e-mail: wdc165@msstate.edu EDI_HeadB=EDI_HeadC=EDI_HeadB=EDI_HeadC/HeadB EDI_HeadC=EDI_HeadD=EDI_HeadC=EDI_HeadD/HeadC Section Editor: Donald Cook EDI_Extract3=EDI_HeadA=EDI_Extract1=EDI_HeadA Wheat | Triticum aestivum ERR_HeadA=ERR_HeadB=ERR_HeadA=ERR_HeadB/HeadA Green Bug Aphid | Schizaphis graminum (Rondani) ERR_HeadB=ERR_HeadC=ERR_HeadB=ERR_HeadC/HeadB ERR_HeadC=ERR_HeadD=ERR_HeadC=ERR_HeadD/HeadC On 25 Oct 2012, an insecticide seed treatment trial was initiated on psi using TX-6 Hollow Cone nozzles (2 per row). Green bug aphid ERR_Extract3=ERR_HeadA=ERR_Extract1=ERR_HeadA the R.R. Foil Plant Science Research Center in Starkville, MS. Two populations were evaluated at four sample timings of 17, 27, 37, and insecticidal seed treatments, Poncho and Cruiser, were evaluated 52 days after treatment (DAT). Plots were sampled by counting all against an untreated check and a foliar insecticide, Karate Z, for con- aphids present per five row feet. All means were log10 transformed. trol of green bug aphids. Plot size was four rows by 40 feet long on Data was analyzed with ANOVA and means were separated using 38-inch centers. Statistical design was implemented as a randomized Fisher’s Protected LSD (P ≤ 0.05). complete block with four replications. Wheat seed was treated at At 17, 27, and 37 DAT, there were no statistical differences experimental rates by respective companies prior to planting. Foliar among treatments for numbers of aphids per five row feet. At 52 insecticide applications were made on 15 Feb 2013, when wheat was DAT, Karate Z significantly reduced aphid densities compared to approximately at the tillering stage. Foliar applications were applied the untreated check, Poncho, or Cruiser. There were no significant with a tractor-mounted sprayer calibrated to deliver 10.0 gpa at 60 differences among treatments for yield. Table 1. Rate/acre Average Aphids per five row feet Yield c c c c Treatment/Form. oz form 17 DAT 27 DAT 37 DAT 52 DAT bu/acre a a a a a Untreated Check — 20.3 9.0 3.4 15.9 32 a a a a b a Karate Z 2.08CS 1.5 oz 2.8 2.5 4.0 2.7 37 b a a a a a Poncho 600FS 0.8 fl oz/cwt 15.3 16.3 11.2 34.4 43 b a a a a a Cruiser 5FS 1.0 fl oz/cwt 17.0 16.3 13.3 34.7 39 P>F <0.0088 0.15 0.66 0.19 0.22 Means within a column sharing the same letter are not significantly different (LSD; P > 0.50). Foliar application at tillering, 15 Feb. Seed Treatment. Log10 (x+1) transformed data used for analysis, but actual means are reported. This study was supported by industry gifts of products and/or research funding. © The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. 1 This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/ licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Efficacy of Insecticide Seed Treatments and Foliar Insecticides on Aphid Control in Wheat, 2013 (Test 1)

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Publisher
Oxford University Press
Copyright
© The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/tsaa113
Publisher site
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Abstract

applyparastyle "fig//caption/p[1]" parastyle "FigCapt" applyparastyle "fig" parastyle "Figure" Arthropod Management T ests, 46(1), 2021, 1–1 doi: 10.1093/amt/tsaa113 Section F: Field & Cereal Crops WINTER WHEAT: Triticum aestivum, L., ‘Variety Unknown’ HeadA=HeadB=HeadA=HeadB/HeadA Efficacy of Insecticide Seed Treatments and Foliar HeadB=HeadC=HeadB=HeadC/HeadB Insecticides on Aphid Control in Wheat, 2013 (Test 1) HeadC=HeadD=HeadC=HeadD/HeadC 1 1 1 2,3 Extract3=HeadA=Extract1=HeadA Adam Whalen, Angus L. Catchot, Dung Bao, and Whitney D. Crow History=Text=History=Text_First Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi EDI_HeadA=EDI_HeadB=EDI_HeadA=EDI_HeadB/HeadA 2 State, MS 39762, Delta Mississippi Research and Extension Center, Mississippi State University, Stoneville, MS 38776, and Corresponding author, e-mail: wdc165@msstate.edu EDI_HeadB=EDI_HeadC=EDI_HeadB=EDI_HeadC/HeadB EDI_HeadC=EDI_HeadD=EDI_HeadC=EDI_HeadD/HeadC Section Editor: Donald Cook EDI_Extract3=EDI_HeadA=EDI_Extract1=EDI_HeadA Wheat | Triticum aestivum ERR_HeadA=ERR_HeadB=ERR_HeadA=ERR_HeadB/HeadA Green Bug Aphid | Schizaphis graminum (Rondani) ERR_HeadB=ERR_HeadC=ERR_HeadB=ERR_HeadC/HeadB ERR_HeadC=ERR_HeadD=ERR_HeadC=ERR_HeadD/HeadC On 25 Oct 2012, an insecticide seed treatment trial was initiated on psi using TX-6 Hollow Cone nozzles (2 per row). Green bug aphid ERR_Extract3=ERR_HeadA=ERR_Extract1=ERR_HeadA the R.R. Foil Plant Science Research Center in Starkville, MS. Two populations were evaluated at four sample timings of 17, 27, 37, and insecticidal seed treatments, Poncho and Cruiser, were evaluated 52 days after treatment (DAT). Plots were sampled by counting all against an untreated check and a foliar insecticide, Karate Z, for con- aphids present per five row feet. All means were log10 transformed. trol of green bug aphids. Plot size was four rows by 40 feet long on Data was analyzed with ANOVA and means were separated using 38-inch centers. Statistical design was implemented as a randomized Fisher’s Protected LSD (P ≤ 0.05). complete block with four replications. Wheat seed was treated at At 17, 27, and 37 DAT, there were no statistical differences experimental rates by respective companies prior to planting. Foliar among treatments for numbers of aphids per five row feet. At 52 insecticide applications were made on 15 Feb 2013, when wheat was DAT, Karate Z significantly reduced aphid densities compared to approximately at the tillering stage. Foliar applications were applied the untreated check, Poncho, or Cruiser. There were no significant with a tractor-mounted sprayer calibrated to deliver 10.0 gpa at 60 differences among treatments for yield. Table 1. Rate/acre Average Aphids per five row feet Yield c c c c Treatment/Form. oz form 17 DAT 27 DAT 37 DAT 52 DAT bu/acre a a a a a Untreated Check — 20.3 9.0 3.4 15.9 32 a a a a b a Karate Z 2.08CS 1.5 oz 2.8 2.5 4.0 2.7 37 b a a a a a Poncho 600FS 0.8 fl oz/cwt 15.3 16.3 11.2 34.4 43 b a a a a a Cruiser 5FS 1.0 fl oz/cwt 17.0 16.3 13.3 34.7 39 P>F <0.0088 0.15 0.66 0.19 0.22 Means within a column sharing the same letter are not significantly different (LSD; P > 0.50). Foliar application at tillering, 15 Feb. Seed Treatment. Log10 (x+1) transformed data used for analysis, but actual means are reported. This study was supported by industry gifts of products and/or research funding. © The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. 1 This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/ licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com.

Journal

Arthropod Management TestsOxford University Press

Published: Feb 16, 2021

Keywords: Wheat | Triticum aestivum; Green Bug Aphid | Schizaphis graminum (Rondani); lambda-cyhalothrin; clothianidin; thiamethoxam

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