Soil residual activity and plantback periods for the herbicides saflufenacil and topramezone

Authors

  • A. Rahman
  • C.A. Dowsett
  • M.R. Trolove
  • T.K. James

DOI:

https://doi.org/10.30843/nzpp.2014.67.5729

Abstract

To quantify soil residual activity and plantback periods for two maize herbicides saflufenacil and topramezone different rates were applied to a cultivated soil and samples (05 cm) collected at regular intervals for glasshouse bioassays Phytotoxic residues of saflufenacil applied at 17 g ai/ha the rate used for conservation tillage and pasture renovation persisted in the soil for lt; 2 weeks for the susceptible species viz white clover onion carrot and radish Residual activity from 102 g ai/ha the rate recommended for maize dissipated within 4 weeks for all species Wheat ryegrass carrot squash onions and tomato were not affected by topramezone residues from rates up to 202 g ai/ha in soil collected 2 weeks after treatment (WAT) However peas white clover and radish all suffered damage in samples collected 2 WAT By 4 WAT only white clover and peas exhibited minor phytotoxicity

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Published

2014-01-08

How to Cite

Rahman, A., Dowsett, C., Trolove, M., & James, T. (2014). Soil residual activity and plantback periods for the herbicides saflufenacil and topramezone. New Zealand Plant Protection, 67, 298-303. https://doi.org/10.30843/nzpp.2014.67.5729

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