@article{mcelroy_yelverton_warren_2005, title={Control of green and false-green kyllinga (Kyllinga brevifolia and Kyllinga gracillima) in golf course fairways and roughs}, volume={19}, ISSN={["1550-2740"]}, DOI={10.1614/WT-03-241R1.1}, abstractNote={Herbicides commonly used to control Cyperus spp. are not completely effective against Kyllinga spp. Field trials were conducted on North Carolina golf courses to evaluate green and false-green kyllinga control at fairway and rough golf course mowing heights. Treatments included single and sequential applications of bentazon (1.12 kg ai/ha), halosulfuron (0.07 kg/ha), MSMA (2.24 kg/ ha), and trifloxysulfuron (0.03 kg/ha); imazaquin (0.56 kg/ha) with and without MSMA; and two rates of sulfentrazone (0.42 and 0.56 kg/ha). Green or false-green kyllinga control was equivalent at fairway and rough mowing heights. Halosulfuron applied sequentially, imazaquin with and without MSMA, and trifloxysulfuron applied singly or sequentially, controlled green and false-green kyllinga 89 to 99% 10 wk after initial treatment (WAIT). However, Kyllinga spp. control decreased over the course of the study regardless of herbicide treatment. By one year after treatment (YAIT), bentazon or MSMA alone controlled green or false-green kyllinga 50% or less. No difference was observed in green or false-green kyllinga control between imazaquin vs. imazaquin plus MSMA, sulfentrazone 0.42 vs. 0.56 kg/ha, or trifloxysulfuron one vs. two applications at any rating date. Green kyllinga was seemingly more difficult to control than false-green kyllinga. Sequential applications of bentazon and MSMA, single applications of halosulfuron, sulfentrazone applied at 0.42 and 0.56 kg/ha, and single and sequential applications of trifloxysulfuron controlled false-green kyllinga at least 10% greater than green kyllinga at 1 YAIT. Further research is needed to assess the potential variation among Cyperus and Kyllinga spp. response to herbicides. Nomenclature: Bentazon, halosulfuron, imazaquin, monosodium methanearsonate (MSMA), sulfentrazone, trifloxysulfuron; bermudagrass, Cynodon spp.; false-green kyllinga, Kyllinga gracillima L.; green kyllinga, Kyllinga brevifolia Rottb. #3 KYLBR. Additional index words: Mowing height, turfgrass management. Abbreviations: WAIT, weeks after initial treatment; YAIT, year after initial treatment.}, number={4}, journal={WEED TECHNOLOGY}, author={McElroy, JS and Yelverton, FH and Warren, LS}, year={2005}, pages={824–829} } @article{isgrigg_yelverton_brownie_warren_2002, title={Dinitroaniline resistant annual bluegrass in North Carolina}, volume={50}, ISSN={["1550-2759"]}, DOI={10.1614/0043-1745(2002)050[0086:DRABIN]2.0.CO;2}, abstractNote={Abstract Annual bluegrass control was reduced following 7 yr of continuous fall application of dinitroaniline (DNA) herbicides. Annual bluegrass control was < 40% on two fairways in year eight following prodiamine applied at 1.1 kg ai ha−1. In dose–response studies conducted in growth chambers, this annual bluegrass population exhibited 105-fold resistance in shoot growth to prodiamine compared with a known susceptible population. A 6.4-fold resistance to prodiamine was found when comparing annual bluegrass root growth to the known susceptible biotype. Spring-applied oxadiazon did not affect shoot or root growth between annual bluegrass biotypes. Equivalent levels of control were attained with pronamide. The presence of DNA-resistant annual bluegrass, in addition to previously confirmed triazine-resistant biotypes on North Carolina golf courses, indicates a need for resistance management strategies to be integrated into golf turf management practices. Nomenclature: Oxadiazon; prodiamine; pronamide; annual bluegrass, Poa annua L. POANN.}, number={1}, journal={WEED SCIENCE}, author={Isgrigg, J and Yelverton, FH and Brownie, C and Warren, LS}, year={2002}, pages={86–90} } @article{jordan_warren_miller_smith_reynolds_crawford_griffin_2001, title={Italian ryegrass control with preplant herbicides}, volume={5}, ISBN={1524-3303}, number={4}, journal={Journal of Cotton Science (Online)}, author={Jordan, D. L. and Warren, L. S., Jr. and Miller, D. K. and Smith, M. C. and Reynolds, D. B. and Crawford, S. H. and Griffin, J. L.}, year={2001}, pages={268} }