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The Potential of Sulfosulfuron to Control Troublesome Weeds in Tomato

  • Hanan Eizenberg (a1), Yaakov Goldwasser (a1), Gai Achdary (a1) and Joseph Hershenhorn (a1)

Abstract

There are few efficient and cost-effective methods for controlling weeds in processing tomatoes. Sulfosulfuron is a sulfonylurea herbicide developed for controlling weeds in wheat. In previous studies, we have demonstrated the efficacy of sulfosulfuron in selectively controlling Orobanche aegyptiaca in tomato. The objective of the present study was to elucidate the potential of sulfosulfuron to selectively control troublesome, nonparasitic weeds in tomato. In the greenhouse, sulfosulfuron efficacy at 37.5, 75.0, and 112.5 g ai/ha applied preplant incorporated (PPI), preemergence (PRE), and postemergence (POST) was tested. Sulfosulfuron when applied PPI and POST was highly selective in controlling weeds without causing injury to tomato. The weeds that were efficiently controlled, even at low rates of application, included purple nutsedge, black nightshade, mustard, pigweed, and bindweed. PRE application resulted in the most efficient weed control but was phytotoxic to tomato at high rates.

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Corresponding author

Corresponding author's E-mail: hanan.eizenberg@orst.edu

References

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Keywords

The Potential of Sulfosulfuron to Control Troublesome Weeds in Tomato

  • Hanan Eizenberg (a1), Yaakov Goldwasser (a1), Gai Achdary (a1) and Joseph Hershenhorn (a1)

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