Simulated herbicide drift alters native plant flowering phenology.

ABSTRACT: Data for herbicide effects on plant flowering are needed to determine potential impacts on plant reproduction. Thus, flowering phenology was determined for up to 12 weeks after herbicide treatment for native Willamette Valley plants growing in small plots on two Oregon State University experimental farms. Six perennial species were evaluated: Camassia leichtlinii (CALE), Elymus glaucus (ELGL), Eriophyllum lanatum (ERLA), Festuca idahoensis subsp. roemeri (FEID), Iris tenax (IRTE), and Prunella vulgaris var. lanceolata (PRVU). Effects of glyphosate and dicamba, alone and in combination, were determined using simulated drift rates of 0.1 or 0.2 x field application rates (FAR) of 1119 g ha^-1 active ingredient (a.i.) (830 g ha^-1 acid glyphosate) for glyphosate and 560 g h

SUBMITTER: Olszyk D 

PROVIDER: S-EPMC11559356 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature