Tolerance of plasticulture strawberry to 2,4-D choline applied to row middles
2022
Sims, Kira C. | Jennings, Katherine M. | Monks, David W. | Jordan, David L. | Hoffmann, Mark | Mitchem, Wayne E.
Field studies in strawberry grown on polyethylene-mulched raised beds were conducted from 2018 to 2019 and 2019 to 2020 in Clayton, NC, to determine ‘Camarosa’ and ‘Chandler’ strawberry tolerance to 2,4-D directed to the row middle between beds. Treatments included 2,4-D at 0, 0.53, 1.06, 1.60, and 2.13 kg ae ha–¹ applied alone and sequential treatments (0.53 followed by [fb] 0.53 or 1.06 fb 1.06 kg ae ha–¹). Initial treatments were applied in winter (December 2018 or January 2020) during vegetative growth, and sequential applications were applied in spring (April 2019 or March 2020) during reproductive growth. No differences among treatments were observed for visual foliage injury, strawberry crop canopy, fruit yield, and fruit quality (pH, titratable acidity, and soluble solid content). Nomenclature: strawberry, Fragaria ×ananassa (Weston) Duchesne ex Rozier (pro nm.) ‘Camarosa’ ‘Chandler’; 2,4-D
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