New Zealand Plant Protection 58 (2005): 239-244
Virus surveys of lettuce crops and management of lettuce big-vein disease in New Zealand
J.D. Fletcher, C.M. France and R.C. Butler
ABSTRACT
Virus surveys of lettuce crops over the past three seasons have confirmed that a number of virus diseases can threaten production. Lettuce big-vein disease (LBVD), caused by Mirafiori lettuce big-vein virus (MLBVV) usually in combination with Lettuce big-vein virus (LBVV), was the most widespread virus disease of lettuce over the survey period. Other viruses present include Lettuce necrotic yellows virus (LNYV), Beet western yellows virus (BWYV), Cucumber mosaic virus (CMV) and Lettuce mosaic virus (LMV). The surveys have not detected Tomato spotted wilt virus (TSWV) or Tobacco necrosis virus (TNV). Control of Olpidium brassicae, the fungal vector of LBVD, is an important factor in disease management. This paper outlines survey results and describes experiments using fungicides to control this disease.
Keywords: virus diseases, surveys, lettuce, lettuce big-vein disease, fungicides.
 | Incidence and control of thrips on outdoor lettuce at Pukekohe P.J. Workman, G.P. Walker and S. Winkler (2007) New Zealand Plant Protection 60: 42-49 |
| Control and management of lettuce big-vein disease J.D. Fletcher, C. France and R.C. Butler (2004) New Zealand Plant Protection 57: 344 |
| Integrated pest and disease management (IPM) for outdoor lettuce G.P. Walker, P.J. Workman, M.A.W. Stufkens, P.J. Wright, J.D. Fletcher, M.S. Qureshi and S.I. Davis (2003) New Zealand Plant Protection 56: 269 |
Copyright © 2005 New Zealand Plant Protection Society (Inc.).
Please refer to the terms of use.
© 2010 New Zealand Plant Protection Society (Inc.)