Application techniques alter uniconazole efficacy on chrysanthemums
1994
Barrett, J.E. | Bartuska, C.A. | Nell, T.A.
Four experiments using container-grown Dendranthema X grandiflorum (Ramat.) Kitamura 'Nob Hill' or 'Tara' were conducted to determine effects of application site and spray volume on uniconazole efficacy. Uniconazole applied only to mature leaves was less effective in controlling stem elongation than were stem applications, whole-plant sprays, or medium drenches. Spray volume altered efficacy more for uniconazole than for daminozide. Also, the effect of uniconazole spray volume was greater when the medium was not covered than when covered to prevent spray solution entering medium. Results from these studies showed the efficacy of uniconazole increased with increased stem coverage and with amount of chemical reaching the medium, which was achieved with high spray volumes.
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