Publication Date
1993
Description
This experiment tested 3 ryegrass (Lolium multiflorum Lam.) genotypes with (E+ )° and without (E-) endophyte, to determine the effectiveness of the endophyte in reducing leaf damage caused by greenbugs (Schlzaplris granthum Rondani). Results Indicated that presence of endophyte increased resistance in only I of 3 lines tested. The apparent resistance was observed.as leaf necrosis (leaf necking, yellowing, tip die-back, and leaf death). Resistance was not observed until green bug reinfestation of 3-month-old plants. A control with E+ Kentucky 31 fescue (Festuca arundinacea Schreb.) also had reduced greenbug damage compared with E- Kentucky 31 plants. This study provides evidence lhat the endophyte in some annual ryegrass lines may confer greenbug resistance similar to that reporled for Lolium perenne L.
Citation
Nelson, L R.; Harrington, Marta R.; and Marshall, D, "Effectiveness of Acremoniu lolli in Annual Ryegrass in Controlling Greenbug (Schizaphis graminum Rondani) Injury" (2024). IGC Proceedings (1993-2023). 20.
https://uknowledge.uky.edu/igc/1993/session22/20
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effectiveness of Acremoniu lolli in Annual Ryegrass in Controlling Greenbug (Schizaphis graminum Rondani) Injury
This experiment tested 3 ryegrass (Lolium multiflorum Lam.) genotypes with (E+ )° and without (E-) endophyte, to determine the effectiveness of the endophyte in reducing leaf damage caused by greenbugs (Schlzaplris granthum Rondani). Results Indicated that presence of endophyte increased resistance in only I of 3 lines tested. The apparent resistance was observed.as leaf necrosis (leaf necking, yellowing, tip die-back, and leaf death). Resistance was not observed until green bug reinfestation of 3-month-old plants. A control with E+ Kentucky 31 fescue (Festuca arundinacea Schreb.) also had reduced greenbug damage compared with E- Kentucky 31 plants. This study provides evidence lhat the endophyte in some annual ryegrass lines may confer greenbug resistance similar to that reporled for Lolium perenne L.
