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Critical Period for Palmer Amaranth (Amaranthus palmeri) Control in Pickling Cucumber

Published online by Cambridge University Press:  09 November 2018

Samuel J. McGowen ,
Katherine M. Jennings ,
Sushila Chaudhari ,
David W. Monks ,
Jonathan R. Schultheis  and
Chris Reberg-Horton
Samuel J. McGowen
Affiliation:
Graduate Research Assistant, Department of Horticultural Science, North Carolina State University, Raleigh, NC, USA
Katherine M. Jennings
Affiliation:
Associate Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC, USA
Sushila Chaudhari*
Affiliation:
Postdoctoral Research Scholar, Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, USA
David W. Monks
Affiliation:
Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC, USA
Jonathan R. Schultheis
Affiliation:
Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC, USA
Chris Reberg-Horton
Affiliation:
Associate Professor, Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, USA
*
*Author for correspondence: Sushila Chaudhari, Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695. (Email: schaudh@ncsu.edu)
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Abstract

Field studies were conducted in North Carolina to determine the critical period for Palmer amaranth control (CPPAC) in pickling cucumber. In removal treatments (REM), emerged Palmer amaranth were allowed to compete with cucumber for 14, 21, 28, or 35 d after sowing (DAS) in 2014 and 14, 21, 35, or 42 DAS in 2015, and cucumber was kept weed-free for the remainder of the season. In the establishment treatments (EST), cucumber was maintained free of Palmer amaranth by hand removal until 14, 21, 28, or 35 DAS in 2014 and until 14, 21, 35, or 42 DAS in 2015; after this, Palmer amaranth was allowed to establish and compete with the cucumber for the remainder of the season. The beginning and end of the CPPAC, based on 5% loss of marketable yield, was determined by fitting log-logistic and Gompertz equations to the relative yield data representing REM and EST, respectively. Season-long competition by Palmer amaranth reduced pickling cucumber yield by 45% to 98% and 88% to 98% during 2014 and 2015, respectively. When cucumber was planted on April 25, 2015, the CPPAC ranged from 570 to 1,002 heat units (HU), which corresponded to 32 to 49 DAS. However, when cucumber planting was delayed 2 to 4 wk (May 7 and May 21, 2014 and May 4, 2015), the CPPAC lasted from 100 to 918 HU (7 to 44 DAS). This research suggested that planting pickling cucumber as early as possible during the season may help to reduce competition by Palmer amaranth and delay the beginning of the CPPAC.

Keywords

Peter J. Dittmar, University of FloridaPalmer amaranth, Amaranthus palmeri S. Wats. AMAPAcucumber, Cucumis sativus L.Establishmentheat unitsremovalweed competition
Type
Research Article
Information
Weed Technology , Volume 32 , Issue 5 , October 2018 , pp. 586 - 591
Copyright
© Weed Science Society of America, 2018 

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References

Berry, AD, Stall, WM, Rathinasabapathi, B, Macdonald, GE, Charudattan, R (2006) Smooth pigweed (Amaranthus hybridus L.) and livid amaranth (Amaranthus lividus) interference with cucumber (Cucumis sativus). Weed Technol 20:227–231 Google Scholar
Chaudhari, S, Jennings, KM, Monks, DW, Jordan, DL, Gunter, CC, McGowen, SL, Louws, FJ (2016) Critical period for weed control in grafted and nongrafted fresh market tomato. Weed Sci 64:523–530 Google Scholar
Chaudhari, S, Jordan, DL, York, AC, Jennings, KM, Cahoon, CW, Chandi, A, Inman, MD (2017) Biology and management of glyphosate-resistant and -susceptible Palmer amaranth (Amaranthus palmeri) phenotypes from a segregating population. Weed Sci 65:755–768 Google Scholar
Everman, WJ, Clewis, SB, Thomas, WE, Burke, IC, Wilcut, JW (2008) Critical period of weed interference in peanut. Weed Technol 22:63–67 Google Scholar
Friesen, GH (1978) Weed interference in pickling cucumbers (Cucumis sativus). Weed Sci 26:626–628 Google Scholar
Guo, P, Al-Khatib, K (2003) Temperature effects on germination and growth of redroot pigweed (Amaranthus retroflexus), Palmer amaranth (A. palmeri), and common waterhemp (A. rudis). Weed Sci 51:869–875 Google Scholar
Holmes, GJ, Monks, DW, Schultheis, JR, Sorensen, KA, Thornton, AC, Toth, SJ (2005) Crop profile for cucumbers in North Carolina. https://ipm.ces.ncsu.edu/ipm-crop-profiles/ Accessed: December 17, 2015Google Scholar
Horak, MJ, Loughin, TM (2000) Growth analysis of four Amaranthus species. Weed Sci 48:347–355 Google Scholar
Jha, P, Norsworthy, JK (2009) Soybean canopy and tillage effects on emergence of Palmer amaranth (Amaranthus palmeri) from a natural seed bank. Weed Sci 57:644–651 Google Scholar
Kemble, JM (2017) Southeastern U.S. Vegetable Crop Handbook. Lincolnshire IL: Vance. p 286Google Scholar
Knezevic, SZ, Evans, SP, Blankenship, EE, Van Acker, RC, Lindquist, JL (2002) Critical period for weed control: the concept and data analysis. Weed Sci 50:773–786 Google Scholar
Martin, SG, Friesen, LF, Van Acker, RC (2001) Critical period of weed control in spring canola. Weed Sci 49:326–333 Google Scholar
Meyers, SL, Monks, DW, Schultheis, JR, Jennings, KM (2010) Interference of Palmer amaranth (Amaranthus palmeri) in sweetpotato. Weed Sci 58:199–203 Google Scholar
Motis, TN, JPSJ, Locascio, Gilreath, JP (2004) Critical yellow nutsedge-free period for polyethylene-mulched bell pepper. Hortscience 39:1045–1049 Google Scholar
Norsworthy, JK, Buckelew, JK, Jennings, KM, Monks, DW, Oliveira, MJ, Jha, P, Malik, M (2008) Palmer amaranth and large crabgrass growth with plasticulture-grown bell pepper. Weed Technol 22:296–302 Google Scholar
Perry, KB, Wehner, TC, Johnson, TL (1986) Comparison of 14 methods to determine heat unit requirements for cucumber harvest. Hort Sci 21:419–423 Google Scholar
Schultheis, J, Averre, C, Boyette, M, Estes, E, Holmes, G, Monks, D, Sorensen, K (2000) Commercial production of pickling and slicing cucumbers in North Carolina. http://content.ces.ncsu.edu/commercial-production-of-pickling-and-slicing-cucumbers-in-north-carolina Accessed: December 17, 2015Google Scholar
Seem, JE, Creamer, NG, Monks, DW (2003) Critical weed-free period for ‘Beauregard’ sweet potato (Ipomoea batatas). Weed Technol 17:686–695 Google Scholar
Swanton, CJ, O’Sullivan, J, Robinson, DE (2010) The critical weed-free period in carrot. Weed Sci 58:229–233 Google Scholar
Trader, BW, Wilson, HP, Hines, TE (2007) Halosulfuron helps control several broadleaf weeds in cucumber and pumpkin. Weed Technol 21:966–971 Google Scholar
Weaver, SE (1984) Critical period of weed competition in three vegetable crops in relation to management practices. Weed Research 24:317–325 Google Scholar
Webster, TM (2010) Weed survey–southern states: vegetable, fruit, and nut crops subsection. Proc South Weed Sci Soc 63:246–257 Google Scholar
Wells, HF, Thornsbury, S, Bond, J (2014) Vegetables and Pulses Yearbook Data. Washington, DC: Economic Research Service, US Department of Agriculture. p 90 Google Scholar
Williams, MM II (2006) Planting date influences critical period of weed control in sweet corn. Weed Sci 54:928–933 Google Scholar