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ARS Home » Southeast Area » Tifton, Georgia » Crop Protection and Management Research » Research » Publications at this Location » Publication #288517
Title: Evaluation of phytotoxicity of quinoxyfen on fresh market tomatoes, 2012

Author
item Fraelich, Benjamin - Ben
item Scully, Brian

Submitted to: Plant Disease Management Reports
Publication Type: Research Technical Update
Publication Acceptance Date: 1/29/2013
Publication Date: N/A
Citation: N/A

Interpretive Summary: This experiment was conducted inTifton, Georgia to evaluate the phytotoxicity of quinoxyfen on fresh market tomatoes in 2012 for the control of bacterial spot and powdery mildew. Four directed foliar applications were applied on a 6-8 day schedule beginning on 2 May and ending on 24 May 2012 at rates of 8.0 fl oz/A (1x) and 16.1 fl oz/A (2x). Phytotoxicity was evaluated on 31 May and 7 and 14 Jun 2012 using a scale of 0-5 (0 = no injury and 5 = dead plants). Fruits were harvested from randomly chosen plants on 14 and 24 Jun 2012 with the number and weight of marketable fruits determined. No phytotoxicity was observed on the plants for any of the treatment rates (0 for all ratings). No stunting, fruit finish injury, or foliage injury was observed. There were no differences among the treatments or the control in yield of fruit according to weight or number.

Technical Abstract: This experiment was conducted inTifton, Georgia to evaluate the phytotoxicity of quinoxyfen on fresh market tomatoes in 2012 for the control of bacterial spot and powdery mildew. Four directed foliar applications were applied on a 6-8 day schedule beginning on 2 May and ending on 24 May 2012 at rates of 8.0 fl oz/A (1x) and 16.1 fl oz/A (2x). Phytotoxicity was evaluated on 31 May and 7 and 14 Jun 2012 using a scale of 0-5 (0 = no injury and 5 = dead plants). Fruits were harvested from randomly chosen plants on 14 and 24 Jun 2012 with the number and weight of marketable fruits determined. No phytotoxicity was observed on the plants for any of the treatment rates (0 for all ratings). No stunting, fruit finish injury, or foliage injury was observed. There were no differences among the treatments or the control in yield of fruit according to weight or number.