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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 13709 + FLUROXYPYR CORTEVA,LOVLND BLUEBERRY (13-07B = BUSHBERRY SUBGROUP) E/CS DATA ON-GOING (03G) Reasons for need: Dogbane, horsetail, bindweed, buckwheat, common mallow, Difficult to control weeds in highbush blueberries fit nicely.:08/23; NJ/ Excellent crop tolerance based on trial conducted in NJ in 2021 and 2022. Alternative to reluctantly used 2,4-D and glyphosate:08/23 Efficacy/Crop Safety (E/CS) Data Required: Mfg requires 'only CS data are needed from major blueberry growing states such as Michigan E/CS Research Comments: PER THE 2024 PERFORMANCE PROTOCOL: TESTING THE STARANE ULTRA PRODUCT AT 3 RATES (0.14, 0.245, 0.49 LB AI/A), AT MULTIPLE TIMINGS, AND WITH DIFFERENT PLACEMENT OF SPRAYS, ALL IN AT LEAST 8 GPA; SEE PROTOCOL FOR DETAILED APPLIC REQUIREMENTS; COMPARE VS A WEED-FREE UNTREATED; EACH TRIAL WILL LAST 2 YEARS, WITH THE TRTS APPLIED TO THE SAME PLOTS EACH YEAR; TRIALS SHOULD BE PLACED ON PLANTS THAT HAVE BEEN ESTABLISHED AT LEAST 4 YEARS; AND AT LEAST 1 TRIAL NEEDS TO BE PLACED ON HIGHBUSH BLUEBERRY GROWN ON A COARSE TEXTURE SOIL; EVALUATE CROP INJURY AND YIELD; NO APPLIC WILL BE MADE IN YEAR 3, BUT CROP RESPONSE DATA WILL BE COLLECTED; 2025 PERFORMANCE PROTOCOL IS FOR YEAR 2 OF 3 ON THE SAME PLOTS AS THE 2024 TRIALS Comments: This new request is for spot spray or banded spray. Although PR# 08324 covers the spot spray, it has a Mfg Will Not Support status from 2002. This new request for both use patterns will be forwarded to the mfg for a current review:08/23; Mfg supports as "Potential, E/CS data before approval for Residue:08/23; Status changed to "ECS ongoing" and will be changed to "Residue ongoing, E/CS ongoing" once residue protocol is signed 02/24/DRS; this was initially a "Potential" status, so there will be no res protocol until mfg approves and project prioritized for residue:11/24/sb; Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Besancon, Thierry 25-NJP01 Meyers, Stephen L (NCR) 25-INP01 Moretti, Marcelo 25-ORP01 Besancon, Thierry 22-NJ-DMP RECD 5612.pdf 8/23 Two-year trial with treatments applied to the same pots both years. Starane Ultra applied as a banded spray along ‘Draper’ blueberries established in a Downer loamy sand 6 years prior to trial establishment. Starane Ultra was applied twice per year, 30 to 45 days apart, at 11.2 or 22.4 fl oz/a (0.245 or 0.49 lb ai/a). Both rates controlled common grounsel significantly better than the glufosinate standard 14 and 28 days after first application (DAA). Fluroxypyr also provided significantly greater common purslane control at 7, 14 and 28 after the second application (DAB). Injury to new canes was similar or lower than glufosinate, regardless of fluroxypyr rate or evaluation timing. Little to no foliar injury occurred with fluroxypyr (3% or less). Berry yield, weight per berry and % commercial yield was not different between glufosinate and fluroxypyr treatments. Meyers, Stephen L (NCR) 24-INP02 RECD 5894.pdf 02/25 Year 1 of 2 with treatments applied to the same plots each year. Starane Ultra was applied at 0.4, 0.7, or 1.4 pt/a (0.14, 0.245, or 0.49 lb ai/a) once or twice as post-directed sprays along and across the lower portion of ‘Rubel’ blueberries growing in a Watseka loamy sand. Single applications of each rate were made to dormant crop, while two sequential applications were applied at green fruit stage and 45 days later. All rates were also applied as shielded bands along the crop rows at green fruit stage and 45 days later. Treatments also included the high rate applied post-directed at all three timings. Dormant applications did not injure blueberry, but also provided little weed control; ≤ 13% at 30 days after treatment (DAT). Little crop injury (≤ 10%) was seen from two in-season sprays, regardless of rate or application method. In-season applications also provided excellent weed control through 30 days after second spray. Fluroxypyr did not negatively impact fruit yield, regardless of application timing, rate or method. Besancon, Thierry 24-NJP01 RECD 5899.pdf 03/25 Year 1 of 2 with treatments applied to the same plots each year. Starane Ultra was applied at 0.4, 0.7, or 1.4 pt/a (0.14, 0.245, or 0.49 lb ai/a) once or twice as post-directed sprays along and across the lower portion of ‘Duke’ blueberries growing in a Lakehurst sand. Single applications of each rate were made to dormant crop, while two sequential applications were applied at green fruit stage and 45 days later. All rates were also applied as shielded bands along the crop rows at green fruit stage and 45 days later. The third application timing was approximately 12 days after harvest data was collected. Dormant applications did not injure blueberry. Fluroxypyr applied in-season caused significant necrosis, chlorosis and stunting of new canes. Shielded applications caused noticeably, and sometimes significantly, less injury than the unshielded applications. Injury levels lessened over time and did not influence blueberry yield. Little to no injury (≤ 5%) seen from fluroxypyr 30 days after the third application timing regardless of fluroxypyr rate or a timing. Moretti, Marcelo 24-ORP06 RECD 5903.pdf 03/25 Year 1 of 2 with treatments applied to the same plots each year. Starane Ultra was applied at 0.4, 0.7, or 1.4 pt/a (0.14, 0.245, or 0.49 lb ai/a) once or twice as post-directed sprays along and across the lower portion of ‘Duke’ blueberries growing in a Cloquato silt loam. Single applications of each rate were made to dormant crop, while two sequential applications were applied at green fruit stage and 45 days later. All rates were also applied as shielded bands along the crop rows at green fruit stage and 45 days later. The final treatment consisted of the high rate applied at all three timings. The third application timing was made 3 days after harvest data was collected. Fluroxypyr caused no crop injury, regardless of rates, timings, or application method and no significant differences if yield or individual fruit weight occurred between treatments. Field bindweed control did not rach 50% from any treatment but sequential applications of the higher rates provided the best levels of control. Compared to the nontreated, two in-season applications at the higher two rates provided significantly less ground cover from weeds 2 weeks after the third application timing (4%).