Influence of Lactofen and 2,4-DB Combinations on Peanut Injury and Yield

Ferrell, J.A. and Leon , R.G. and Sellers, B. and Rowland , D. and Brecke , B. (2013) Influence of Lactofen and 2,4-DB Combinations on Peanut Injury and Yield. Peanut Science, 40 (1). pp. 62-65.

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Abstract

Lactofen plus crop oil adjuvants are increasingly being used to combat acetolactate synthase-resistant weeds in peanut production. To control a broader spectrum of weeds, it is desirable to mix 2,4-DB with lactofen. However, lactofen can be highly injurious to peanuts. It is unknown if the addition of 2,4-DB will exacerbate or prolong the injury observed by lactofen. Experiments were conducted in Citra and Jay, FL in 2011 and 2012 to examine the impact of lactofen, 2,4-DB and lactofen + 2,4-DB applied at 15, 30, and 45 days after planting (DAP) on peanut injury and yield. It was observed that 2,4-DB did not increase foliar injury or stunting (as measured by canopy width) compared to lactofen alone. Additionally, yield was not impacted by any herbicide combination or application timing. From these data, lactofen plus 2,4-DB combinations, applied with crop oil adjuvants, can be used with little concern for exacerbating effects on peanut growth or yield relative to lactofen applied alone

Item Type: Article
Uncontrolled Keywords: Peanut yield, canopy width, herbicide injury, herbicide combinations
Author Affiliation: Associate Professors, Agronomy Department, University of Florida, Gainesville, FL 32611, USA
Subjects: Plant Production
Plant Physiology and Biochemistry > Plant Physiology
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 23 Aug 2013 08:18
Last Modified: 23 Aug 2013 08:18
Official URL: http://dx.doi.org/10.3146/PS12-15R3.1
URI: http://eprints.icrisat.ac.in/id/eprint/11462

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