Weed Technology (2012) 26, 294-299

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Travis W. Gannon, Fred H. Yelverton and Lane P. Tredway (2012)
Selective exposure of yellow nutsedge (Cyperus esculentus), purple nutsedge (Cyperus rotundus), and false green kyllinga (Kyllinga gracillima) to postemergence herbicides
Weed Technology 26 (2), 294-299
Abstract: Greenhouse experiments were conducted to evaluate the effect of selective herbicide placement on sedge shoot number, shoot weight, and root weight. Sulfentrazone, sulfosulfuron, and trifloxysulfuron were applied to soil only, foliage only, or soil plus foliage. Sulfentrazone provided greater yellow nutsedge and false green kyllinga growth reduction compared to purple nutsedge. Sulfosulfuron provided greater purple nutsedge and false green kyllinga growth reduction compared to yellow nutsedge; these species responded similarly to trifloxysulfuron. Soil and soil plus foliar applications provided the highest level of growth suppression, indicating herbicide-soil contact is required for optimum sedge control with these three herbicides. Future research should evaluate techniques that optimize herbicide-soil contact to improve herbicide efficacy.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Fred H. Yelverton

Research topic(s) for pests/diseases/weeds:
control - general


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cyperus rotundus (weed)
Cyperus esculentus (weed)
Kyllinga gracillima (weed)