SS-AGR-103 Recrop Intervals for Herbicides Used in Cotton, Corn and Peanut in Florida1 J.A. Ferrell, G.E. MacDonald, B. J. Brecke, and J. Tredaway Ducar2 1. This document is SS-AGR-103, one of a series of the Agronomy Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Revised January 2005. Reviewed November 2006. Please visit the EDIS Web site at http://edis.ifas.ufl.edu. 2. J.A. Ferell, assistant professor, Agronomy Department; G. E. MacDonald, assistant professor, Agronomy Department; and B. J. Brecke, professor, Agronomy Department, West Florida Research and Education Center-Milton, FL; J. Tredaway Ducar, former assistant professor, Agronomy Department; Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, 32611. The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication does not signify our approval to the exclusion of other products of suitable composition. Use herbicides safely. Read and follow directions on the manufacturer's label. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean Herbicides will often have rotational restrictions stating the amount of time that should be waited before planting a new crop after a herbicide is applied. This "recrop interval" has been determined by research to be enough time from the herbicide application to planting, in order to prevent injury from occurring to the new crop. If a crop is planted in a shorter time than the suggested recrop interval time, injury or crop death can occur. If herbicides are applied in mixture or in a sequential program, use the recrop interval that is most restrictive. Soil type, pH, temperatures, and rainfall may affect the recrop interval. The following tables are minimum intervals between herbicide application (at recommended rates) and recropping. Unless otherwise stated, recrop interval is listed in months. Always read the label prior to any herbicide use to determine if any other restrictions may alter the given recrop intervals.
Recrop Intervals for Herbicides Used in Cotton, Corn and Peanut in Florida 2 Table 1. Recrop interval (months) for herbicides used in cotton. Cotton Herbicide Applied Rotate to Peanut Rotate to Corn Rotate to Soybeans Assure II 4 4 0 Command 3 ME 9 9 0 Envoke 7 7 7 ET 1 0 0 Fusilade DX 0 2 0 Goal 2 10 2 Karmex, Direx 24 6 24 Staple 10 10 10 Suprend 7 7 7 Zorial 1 16 45 days Table 2. Recrop interval (months) for herbicides used in peanut. Peanut Herbicide Applied Rotate to Cotton Rotate to Corn Rotate to Soybean Cadre DG 18 9 9 Classic 8 7 0 Pursuit 18 8.5 0 Strongarm 10 18 0 Tough 1 0 1 Valor 2 2 0 Zorial 16 45 days Table 3. Recrop interval (months) for herbicides used in corn. Corn Herbicide Applied Rotate to Cotton Rotate to Peanut Rotate to Soybean Accent 10 10 0.5 Aatrex 12 12 12 Clarity 4 4 4 Lightning 9 1/2 9 1/2 9 Permit 4 6 9 Python 18 4 0