| Reduced Risk Status: |
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| IPM Compatibility: |
Per Requester: Very Good Fit; GLufosinate is used in many other cucurbits, and I believe glufosinate-p has a good fit for pumpkin production:06/26;
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| Reasons for need: |
broadleaf weeds such as morningglory, amaranth, and others. Primary: Palmer amaranth. There are currently very limited options for growers to manage weeds preplant or in row middles. Current tech used: Paraquat, carfentrazone, & glyphosate for preplant applications. Carfentrazone & glyphosate for row-middle applications:06/26; AR: desperate need of addl products for post emergence weed control in pumpkins. A lot of pigweed issues that outstrip preemergent herbicides & need answers to help mitigate these issues:07/26; IN: Needed in conservation tillage pumpkin to control glyphosate-resistant weeds incl marestail. The post-directed apps of glufosinate is safer & more eff than current options. The use pattern should be adjusted to remove "over mulch" as most pumpkins are not planted into plastic:07/26; OH:Burndown control of winter annual weeds which are difficult to control with glyphosate & carfentrazone incl glyphosate-resistant marestail in no-till pumpkin production:08/26; MD:Safer alternatives needed:08/26; DE:good fit for resistance mgmt for burndown control in no-till pumpkins. We have data studies with the 280SL formulation & have not seen an issue for these uses:09/26; NY:few effective options for managing difficult broadleaf weeds & annual grasses. This would provide a valuable preplant & directed-use tool while supporting resistance mgmt (glyphosate resistant horseweed, other spp) & sustainable vegetable production:09/26; NJ: limited postemergence options for pigweeds, ragweed and other broadleaf weeds:09/26;
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| Requesting State(s): |
AR:Cato, A ; DE:VanGessel, M ; GA:Culpepper, S ; IN:Meyers, S ; MD:Vollmer, K ; MS:Henn, A ; NJ:Besancon, T ; NM:Robbins, C ; NY:Sosnoskie, L ; OH:Yadav, R ; PA:Lingenfelter, D ; SC:Cutulle, M ; TN:Wright-Smith, H* ;
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| PCR Use Pattern: |
Make 1 or 2 applications of Liberty Ultra as a preplant burndown over mulch before planting plus a maximum of 2 hooded applications, not to exceed 3 applications in total. Do not apply more than 1.17 lb ai/a in a single application; RTI 14 days; PHI 14 days. BASF only requires phytotoxicity data and supports 29 fl oz/A per application, maximum 2 applications per crop cycle, with a maximum seasonal total of 58 fl oz/A (0.80 lb ai Glu-P/A); all other directions for use (i.e., PHI, RTI, application timing, preplant interval, etc.) remain exactly the same as the market-released Liberty 280 SL Herbicide label:08/26/sb;.
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| EPA Default Residue Trials: |
1 2 5 6 10
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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: |
BASF only requires phytotoxicity data and supports 29 fl oz/A per application, maximum 2 applications per crop cycle, with a maximum seasonal total of 58 fl oz/A (0.80 lb ai Glu-P/A); all other directions for use (i.e., PHI, RTI, application timing, preplant interval, etc.) remain exactly the same as the market-released Liberty 280 SL Herbicide label.
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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: |
Green:08/26;
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| EPA Status: |
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| EPA PRIA Date: |
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| MRID: |
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| Comments: |
BASF supports as Needs E/CS Data Only and no residue data is needed for this project since tolerances are already established for glufosinate in cucurbits subgroup 09B (which includes pumpkin) and therefore the crop group tolerances for glufosinate can be bridged to glufosinate-P:08/26;
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| International Status: |
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