| Reduced Risk Status: |
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| IPM Compatibility: |
PER REQUESTOR, GOODFIT; HALOSULFURON, A SYSTEMIC HERBICIDE ACTIVE INGREDIENT, CAN POTENTIALLY MANAGE PERENNIAL TUBEROUS SEDGES AND BROAD-LEAVED WEEDS GROWING IN THE TREE ROWS OR UNDER THE CANOPY IN FLORIDA'S (FL) CITRUS PRODUCTION. MANY BROADLEAVED WEEDS, INCLUDING SPANISH NEEDLES (BIDENS ALBA), PARTHENIUM (PARTHENIUM HYSTEROPHORUS), HORSEWEED (CONYZA CANADENSIS) ETC., WHICH ARE AMONG THE TOP WEEDS IN FL CITRUS IS SHOWING TOLERANCE TO HERBICIDE ACTIVE INGREDIENTS LIKE GLYPHOSATE IS AMONG THE WEED MANAGEMENT CHALLENGES FACED BY THE GROWERS. THE LACK OF RESPONSE OF THESE WEEDS TO GLYPHOSATE IS WELL DOCUMENTED IN THE LITERATURE. ADDITIONALLY, HALOSULFURON, DUE TO ITS SYSTEMIC ACTIVITY, CAN BE UTILIZED IN COMBINATION WITH MOWING PRACTICES TO SUPPRESS THE GROWTH OF TALL-GROWING WEEDS (ESPECIALLY GRASSES) IN THE ROW-MIDDLE AREAS IN CITRUS ORCHARDS. THIS INTEGRATED WEED MANAGEMENT STRATEGY, ALSO KNOWN AS CHEMICAL MOWING, CURRENTLY UTILIZES SUB-LETHAL DOSES OF GLYPHOSATE AND IS GAINING POPULARITY AS AN INTEGRATED APP
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| Reasons for need: |
BROADLEAVED WEEDS, YELLOW NUTSEDGE, PURPLE NUTSEDGE; CITRUS PRODUCTION IN FLORIDA (FL) ONLY HAS LIMITED BROAD-SPECTRUM POST HERBICIDE OPTIONS WITH SYSTEMIC ACTIVITY. MANY BROADLEAVED WEEDS IN FL CITRUS SHOW TOLERANCE TO APPROVED HERBICIDE ACTIVE INGREDIENTS WITH SYSTEMIC ACTIVITY (E.G., GLYPHOSATE). THIS IS A CONCERN AMONG THE GROWERS. SO THE POSSIBILITY OF ADDING NEW SYSTEMIC A.I OPTIONS LIKE HALOSULFURON FOR EFFECTIVE BROAD-LEAF AND SEDGE MANAGEMENT WOULD BE HELPFUL FOR THE GROWERS.
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| Requesting State(s): |
CA:Hanson, B ; FL:Kanissery, R* ;
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| PCR Use Pattern: |
SANDEA, WITH FOLIAR, BAND APPLICATION FROM A BOOM SPRAYER, TBD ON APPLICATION NUMBER, RETREATMENT INTERVAL, AND PHI.
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| EPA Default Residue Trials: |
3-11 6 10-4
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| IR-4 Residue Trial Plan: |
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| Residue Protocol Use Pattern: |
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| Efficacy/Crop Safety (E/CS) Data Required: |
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| E/CS Research Comments: |
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| Label Use Pattern Submitted To EPA: |
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| EPA PIF Status: |
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| EPA Status: |
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| EPA PRIA Date: |
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| MRID: |
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| Comments: |
LACK OF SUPPORT FROM MFG DUE TO CROP INJURY.
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| International Status: |
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| Archive Location: |
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| QA Archive: |
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