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Leaching Behavior of Two Pendimethalin Formulations in a Soilless Growing Medium

Published online by Cambridge University Press:  20 January 2017

Jeffrey Derr ,
Lori Robertson  and
Elizabeth Watson
Jeffrey Derr*
Affiliation:
Virginia Tech, Hampton Roads AREC, 1444 Diamond Springs Rd., Virginia Beach, VA 23455
Lori Robertson
Affiliation:
Virginia Tech, Department of Plant Pathology, Physiology, and Weed Science, Price Hall, Blacksburg, VA 24061
Elizabeth Watson
Affiliation:
Virginia Tech, Department of Biochemistry, 350 Litton Reaves Hall, Blacksburg, VA 24061
*
Corresponding author's E-mail: jderr@vt.edu
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Abstract

Pendimethalin is commonly applied for PRE weed control in container nursery production. Field and laboratory trials were conducted to determine herbicide effectiveness and leaching of two pendimethalin formulations in pine bark, the primary component used in the growing medium of container-grown plants in the South. The microencapsulated (ME) formulation of pendimethalin gave lower control of southern crabgrass and leached deeper than the emulsifiable concentrate (EC) formulation in pine bark. The EC formulation controlled southern crabgrass 93% compared with only 70% with the ME formulation at 4.48 kg ai ha−1. After applying 3.4 kg ai ha−1 pendimethalin and 17.8 cm of irrigation water, the ME formulation showed greater leaching into the 3- to 6- and 6- to 9-cm depths than the EC formulation on the basis of a southern crabgrass bioassay. Using a microwave extraction method, only 0.91 mg kg−1 pendimethalin was found in the 3- to 6-cm pine bark depth compared with 4.0 mg kg−1 for the ME formulation. Below the 6-cm depth, no pendimethalin was detected when the EC formulation was applied, but 0.5 ppm was found for the ME formulation. No pendimethalin was detected in effluent collected from irrigation water for the EC; however, 3.0 mg kg−1 was collected from leachate for the ME formulation. Pendimethalin ME is leaching much deeper than the EC formulation in the pine bark profile, which results in lower weed control. This extensive leaching of ME formulation may be due to capsule movement with the irrigation water, combined with a delayed release of pendimethalin, which then binds to the pine bark much lower in the container profile.

Keywords

Pendimethalinsouthern crabgrass, Digitaria ciliaris (Retz.) Koel.Bioassaydinitroanilineemulsifiable concentrate formulation (EC)leachingmicroencapsulated formulation (ME)soilless media
Type
Soil/Air/Water
Information
Weed Science , Volume 63 , Issue 2 , June 2015 , pp. 555 - 560
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Armstrong, SD (1999) Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material. Ph.D Dissertation. Blacksburg, VA Virginia Tech. 129 pGoogle Scholar
Cobb, JM, Mattice, JD, Senseman, SA, Dumas, JA, Mersie, W, Riley, MB, Potter, TL, Mueller, TC, Watson, EB (2006) Stability of pesticides on solid-phase extraction disks after incubation at various temperatures and time intervals. J AOAC Int. 89:903–912 Google Scholar
Chopra, I, Kumari, B, Sharma, SK (2010) Evaluation of leaching behavior of pendimethalin sandy loam soil. Environ Monit Assess. 160:123–126 Google Scholar
Derr, JF, Salihu, S (1996) Preemergence herbicide effects on nursery crop root and shoot growth. J Environ Hort. 14:210–213 Google Scholar
Derr, JF, Simmons, LD (2006) Pendimethalin influence on azalea shoot and root growth. J Environ Hort. 24:221–225 Google Scholar
Doub, JP, Wilson, HP, Hines, TE, Hatzios, KK (1988) Consecutive annual applications of alachlor and metolachlor to continuous no-till corn (Zea mays). Weed Sci. 36:340–344 Google Scholar
Hatzinikolaou, AS, Eleftherohorinos, IG, Vasilakoglou, IB (2004) Influence of formulation on the activity and persistence of pendimethalin. Weed Technol. 18:397–403 Google Scholar
Heinz, M (2005) BASF Dedicated Marketing Strategies for the Global AgChem Markets. http://www.basf.com/group/corporate/en_GB/function/conversions:/publish/content/investor-relations/calendar/images/050831/Presentation_Heinz.pdf. Accessed August 19, 2014Google Scholar
Krausz, RF, Young, BG, Kapusta, G, Mathews, JL (2000) Application timing determines giant foxtail (Setaria faberi) and barnyardgrass (Echinochloa crus-galli) control in no-till corn (Zea mays). Weed Technol. 14:161–166 Google Scholar
Lee, YD, Kim, HJ, Chung, JB, Jeong, BR (2000) Loss of pendimethalin in runoff and leaching from turfgrass land under simulated rainfall. J Agric Food Chem. 481:5376–5382 Google Scholar
Mueller, TC, Hayes, RM (1997) Effect of tillage and soil-applied herbicides on broadleaf signalgrass (Brachiaria platyphylla) control in corn (Zea mays). Weed Technol. 11:698–703 CrossRefGoogle Scholar
Shaner, DL, ed (2014) Herbicide Handbook. Lawrence, KS Weed Science Society of America. Pp 343–345 Google Scholar
Shen, G, Lee, HK (2003) Determination of triazines in soil by microwave-assisted extraction followed by solid-phase microextraction and gas chromatography-mass spectrometry. J Chromatogr A. 985:167–174 Google Scholar
Simmons, DL, Derr, J (2007) Pendimethalin movement through pine bark compared to field soil. Weed Technol. 21:873–876 Google Scholar
Singh, M, Glaze, NC, Phatak, SC (1981) Herbicidal response of container-grown rhododendron species. HortScience. 16:213–215 Google Scholar
Skroch, WA, Warren, SL, Gallitano, LB (1991) Herbicide tolerance of selected ericaceous species. J Env Hort. 9:196–198 Google Scholar
Stamps, RH, Neal, CA (1990) Evaluation fo dinitroaniline herbicides for weed control in container landscape plant production. J Env Hort. 8:52–57 Google Scholar
Thetford, M, Gilliam, CH (1991) Herbicide use in propagation: effects on rooting and root growth of stem cuttings. J Environ Hort. 9:21–23 Google Scholar
Young-Deuk, HK, Chung, J, Jeong, B (2000) Loss of pendimethalin in runoff and leaching from turfgrass land under simulated rainfall. J Agric Food Chem. 48:5376–5382 Google Scholar
Vasilakoglou, IB, Eleftherohorinos, IG (2003) Persistence, efficacy and selectivity of amid herbicides in corn. Weed Technol. 17:381–388 Google Scholar
Weber, JB (1990) Behavior of dinitroaniline herbicides in soils. Weed Technol. 4:394–406 Google Scholar
White, SA, Klingeman, WE, eds (2014) IPM for Shrubs in Southeastern U.S. Nursery Production, Vol. 1. Clemson, SC Southern IPM working group. Pp 161–175 Google Scholar