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IS# Priority Commodity (Crop Group) Pest Project Status Discipline Use Site IS00002 X BERRY & SMALL FRUIT (13-07 = BERRY AND SMALL FRUIT GROUP) Weeds, Annual (General) Research Completed Weed Science/PGR Field Only

Problem Code: Resis Requesting State(s): Legacy,Request (NJ) ; Sosnoskie,Lynn (NY) Potential Products: Reason for Need - Comments: Number of conventional projects. Which crops? (8/28/2020) Sosnoskie,Lynn: Glyphosate-resistant weeds can be difficult to manage in perennial tree fruit and grape vine production environments where physical disturbance is limited because of concerns regarding crop damage/safety.

Trial Detail   ( Records counts: 4 )

Trial Number Trial Year Trial State Institution Coordinator Researcher Protocol Report Data To MFG Performance Results and Comments IS00002-21-NJ01 2021 NJ Rutgers University Roger Batts Thierry Besancon IS00002-21 Yes 02/2022 LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISON GUIDED SPOT SPRAYER. YEAR 1 OF 2, EVALUATING GLUFOSINATE, FLORPYRAUXIFEN, 2,4-D CHOLINE, FLUROXYPYR AND DIQUAT. NO BLUEBERRY CANOPY INJURY OBSERVED FROM ANY TRT. VARIABLE YIELDS; NO DIFFERENCE BETWEEN TRTS. GLUFOSINATE: RELY APPLIED AT 82 FL OZ/A (1.5 LB AI/A) MAY 27, JUNE 28 AND JULY 29. MAXIMUM NEW SHOOT INJURY 15% AND GONE BY LATE AUG. INJURY LOWER WITH VISION-GUIDED SPRAYER. GOOD TO EXCELLENT BROADLEAF WEED CONTROL WITH SEQUENTAL SPRAYS. MODERATE GRASS CONTROL REGARDLESS OF APPLICATION METHOD. FLORPYRAUXIFEN: GF-3206 APPLIED AT 16 OR 32 FL OZ/A (0.026 OR 0.053 LB AI/A) MAY 27 AND JUNE 28. MAXIMUM NEW SHOOT INJURY 20% 14 DAYS AFTER SECOND APPLICATION (DAT-2). INJURY FROM VISION GUIDED METHOD LOWER THAN BANDED, BUT STILL GREATER THAN NONTREATED 14 DAT-2. MODERATE PURSLANE CONTROL FROM SEQUENTIAL SPRAYS. SECOND SPRAY INCREASED GROUNDSEL CONTROL FROM <20% TO 95%. NO DIFFERENCE IN WEED CONTROL BETWEEN APPLICATION METHODS. 2,4-D CHOLINE: EMBED EXTRA APPLIED AT 3 PT/A (1.425 LB AI/A) MAY 27 AND JUNE 28. MAXIMUM NEW SHOOT INJURY 20%, NEARLY GONE BY LATE AUG. INJURY LOWER WITH VISION-GUIDED SPRAYER. MODERATE PURSLANE CONTROL FROM SEQUENTIAL SPRAYS. GROUNDSEL CONTROL AVERAGED 94% 28 DAT-2. NO DIFFERENCE IN WEED CONTROL BETWEEN APPLICATION METHODS. FLUORXYPYR: STARANE ULTRA APPLIED 0.7 OR 1.4 PT/A (0.45 OR 0.49 LB AI/A) MAY 27 AND JUNE 28. MAXIMUM NEW SHOOT INJURY WAS 8%, SIGNIFICANTLY HIGHER THAN NONTREATED AT MOST EVALUATIONS. SEQUENTIAL SPRAYS NEEDED FOR GOOD AND EXCELLENT PURSLANE AND GROUNDSEL CONTROL, RESPECTIVELY. DIQUAT: REGLONE APPLIED AT 2 OR 4 PT/A (0.5 OR 1.0 LB AI/A) MAY 27 AND JUNE 14. LITTLE TO NO NEW SHOOT INJURY. MODERATE PURSLANE CONTROL FROM SEQUENTIAL SPRAYS. COMMON GROUNDSEL CONTROL AVERAGED 83% 28 DAT-2. ONLY TEMPORARY FOLIAR BURN OF GRASS WEEDS. IS00002-21-NY01 2021 NY Cornell University Roger Batts Lynn Sosnoskie IS00002-21 Yes 01/2022 PART OF LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISION GUIDED SPOT SPRAYER. OTHER PRODUCTS INCLUDED 2,4-D CHOLINE, CARPYLIC + CAPRIC ACID, DIQUAT, GLUFOSINATE, MESOTRIONE. AXXE APPLIED JUNE 9, JUNE 28 AND AUG 5 AS 15% V/V SOLUTION. NO CROP INJURY REGARDLESS OF APPLICATION METHOD. GOOD, TEMPORARY REDUCTION IN % WEED COVER AFTER EACH APPLICATION. YIELD SIMILAR TO ALL OTHER TREATMENTS. PART OF LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISION GUIDED SPOT SPRAYER. OTHER PRODUCTS INCLUDED AMMONIUM NONANOATE, CARPYLIC + CAPRIC ACID, DIQUAT, GLUFOSINATE, MESOTRIONE. EMBED EXTRA APPLIED AT 2 OR 4 PT/A (0.95 OR 1.9 LB AI/A) JUNE 9 AND JULY 7. BANDED APPLICATION CAUSED SIGNIFICANT, PERSISTENT CROP INJURY (11-21%) AFTER MID-SEASON. LITTLE TO NO INJURY FROM VISION GUIDED APPLICATION. REGARDLESS OF APPLICATION TYPE OR RATE. GOOD REDUCTION OF % BROADLEAF WEED COVER FROM BANDED APPLICATION; NOT AS GOOD WITH VISION GUIDED APPLICATION. YIELD SIMILAR TO ALL OTHER TREATMENTS. PART OF LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISION GUIDED SPOT SPRAYER. OTHER PRODUCTS INCLUDED 2,4-D CHOLINE, AMMONIUM NONANOATE, DIQUAT, GLUFOSINATE, MESOTRIONE. AXXE APPLIED JUNE 9, JUNE 28 AND AUG 5 AS 6% V/V SOLUTION. NO CROP INJURY REGARDLESS OF APPLICATION METHOD. GOOD, TEMPORARY REDUCTION IN % WEED COVER AFTER EACH APPLICATION. YIELD SIMILAR TO ALL OTHER TREATMENTS. IS00002-22-NJ01 2022 NJ Rutgers University Roger Batts Thierry Besancon IS00002-22 Yes 04/2023 LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISON GUIDED SPOT SPRAYER. YEAR 2 OF 2, EVALUATING GLUFOSINATE, FLORPYRAUXIFEN, 2,4-D CHOLINE, FLUROXYPYR AND DIQUAT. NO BLUEBERRY UPPER CANOPY INJURY OBSERVED FROM ANY TRT. NO SIGNIFICANT IMPACT ON BERRY YIELD OR BERRY WEIGHT SEEN WITH ANY TREATMENT. GLUFOSINATE: RELY APPLIED AT 82 FL OZ/A (1.5 LB AI/A) MAY 25, JULY 11 AND AUG 11. MAXIMUM NEW SHOOT INJURY 15% BUT ALMOST GONE 28 DAYS AFTER APPLICATION (DAT) REGARDLESS OF TIMING. NO STUNTING OF NEW CANES OCCURRED. EXCELLENT GROUNDSEL AND PURSLANE CONTROL. GOOD INITIAL GRASSS CONTROL BUT DECLINED. FLORPYRAUXIFEN: GF-3206 APPLIED AT 16 OR 32 FL OZ/A (0.026 OR 0.053 LB AI/A) MAY 25 AND JULY 11. MAXIMUM NEW SHOOT INJURY 12% AT 14 DAT-1 AND 28 DAT-2. POOR TO FAIR GROUNDSEL CONTROL BUT GOOD TO EXCELLENT PURSLANE AND EARLY-SEASON CRABGRASS CONTROL. 2,4-D CHOLINE: EMBED EXTRA APPLIED AT 3 PT/A (1.425 LB AI/A) MAY 25 AND JULY 11. MAXIMUM NEW SHOOT INJURY 10% AT 28 DAT-2. EXCELLENT GROUNDSELAND PURSLANE CONTROL. CRABGRASS CONTROL ONLY FAIR. FLUORXYPYR: STARANE ULTRA APPLIED 0.7 OR 1.4 PT/A (0.45 OR 0.49 LB AI/A) MAY 25 AND JULY 11. MAXIMUM NEW SHOOT INJURY WAS 11% AT 28 DAT-2. EXCELLENT GROUNDSEL AND PURSLANE CONTROL. UNEXPECTEDLY HIGH LARGE CRABGRASS CONTROL SEEN. DIQUAT: REGLONE APPLIED AT 2 OR 4 PT/A (0.5 OR 1.0 LB AI/A) MAY 25 AND JUNE 10. MAXIMUM NEW SHOOT INJURY 16% 7 DAT-1. LITTLE TO NO NEW SHOOT INJURY FROM SECOND APPLICATION. EXCELLENT GROUNSEL CONTROL BUT <80% PURSLANE AND LARGE CRABGRASS CONTROL. LITLE TO NO GRASS CONTROL 28 DAT-2. IS00002-22-NY01 2022 NY Cornell University Roger Batts Lynn Sosnoskie IS00002-22 Yes 04/2023 LARGE SCREENING PROJECT INVESTIGATING BANDED SPRAYER VS. VISON GUIDED SPOT SPRAYER. YEAR 2 OF 2, EVALUATING GLUFOSINATE, 2,4-D CHOLINE, DIQUAT, AMMONIUM NONANOATE, CAPRIC+CAPRILIC ACID, AND MESOTRIONE. REPORT INCLUDES BOTH YEARS. NO TRUNK, VINE OR FRUIT INJURY SEEN FROM ANY TRT. NO FOLIAR INJURY ABOVE 4% SEEN FROM ANY TRT. NO SIGNIFICANT YIELD DIFFERENCE ACROSS HERBICIDES OR APPLICATION METHOD IN 2022. GLUFOSINATE: RELY APPLIED AT 82 FL OZ/A (1.5 LB AI/A) JUNE 9. ORCHARD FLOOR WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 BUT NOT DIFFERENT SEPT 1. BROADLEAF WEED CONTROL 87% NINE DAYS AFTER APPLICATION BUT DECLINED STEADILY TO 15% SEPT 1. 2,4-D CHOLINE: EMBED EXTRA APPLIED AT 2 OR 4 PT/A (0.95 OR 1.9 LB AI/A) JUNE 9 AND JUNE 30. WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 (12%). THOUGH STILL DIFFERENT SEPT 1, WEED COVERAGE FROM BOTH RATES WAS >50%. BROADLEAF WEED CONTROL JULY 29 WAS NEARLY 80% FROM BOTH RATES BUT DECLINED TO <40% SEPT 1. DIQUAT: REGLONE APPLIED AT 4 PT/A (1.0 LB AI/A) JUNE 9 AND JUNE 30. WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 (14%). THOUGH STILL DIFFERENT SEPT 1, WEED COVERAGE WAS >66%. GOOD TO EXCELLENT BROADLEAF WEED CONTROL 2-3 WEEKS AFTER EACH APPLICATION, DECLINING TO <25% SEPT 1. AMMONIOUM NONANOATE: AXXE APPLIED AT 15% V/V JUNE 9 AND JUNE 30. WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 (18%). THOUGH STILL DIFFERENT SEPT 1, WEED COVERAGE WAS >61%. GOOD TO EXCELLENT BROADLEAF WEED CONTROL 2-3 WEEKS AFTER EACH APPLICATION, DECLINING TO <30% SEPT 1. CAPRIC+CARPILIC ACID: HOMEPLATE APPLIED AT 6% V/V JUNE 9 AND JUNE 30. WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 (15%). THOUGH STILL DIFFERENT SEPT 1, WEED COVERAGE WAS >64%. GOOD TO EXCELLENT BROADLEAF WEED CONTROL 2-3 WEEKS AFTER EACH APPLICATION, DECLINING TO 26% SEPT 1. MESOTRIONE: TENACITY APPLIED AT 0.4 OR 0.8 PT/A (0.2 OR 0.4 LB AI/A) JUNE 9. WEED COVERAGE SIGNIFICANTLY LESS THAN UNTREATED THROUGH JULY 29 BUT NOT DIFFERENT SEPT 1. BROADLEAF WEED CONTROL >85% NINE DAYS AFTER APPLICATION BUT DECLINED STEADILY TO <45% SEPT 1.