New Zealand Journal of Crop and Horticultural Science abstracts
Control of a stem canker caused by Phomopsis limonii on Limonium
`Chorus Magenta'
P. G. LONG
K. A. FUNNELL
Institute of Natural Resources
Massey University
Private Bag 11 222
Palmerston North, New Zealand
W. F. FOUNTAIN
1269 Wilzin Drive
Greenville
Mississippi 38701
United States
M. BENDALL
E. R. MORGAN+
New Zealand Institute for Crop & Food
Research Limited
Private Bag 11 600
Palmerston North, New Zealand
email: morgane@crop.cri.nz
Abstract The causal organism of a stem canker disease of
Limonium Mill. `Chorus Magenta' was recently identified and named as
Phomopsis limonii I. Harvey, E. Morgan & G. Burge. In our
experiments, a wound site was the most likely route for entry of
P.
limonii into the plant. Temperature influenced the onset of disease with no
symptoms observed after 6 weeks at 10deg.C but with all test plants at 20, 25,
and 30deg.C showing symptoms within 3 weeks. Symptom appearance at 15deg.C was
intermediate between that at 10 and 20deg.C with all plants diseased after 4
weeks. There was no difference in the efficacy of the fungicides prochloraz and
tebuconazole at controlling disease incidence and development of symptoms.
Overall, control of the disease was poor in all treatments although symptom
development was delayed most when the fungicides were applied 1-2 h after
inoculation.
Keywords Limonium sp.; Phomopsis limonii; plant
disease
New Zealand Journal of Crop and Horticultural Science, 2001, Vol. 29:
247-253
0014-0671/01/2904-0247 $7.00 (c) The Royal Society of New Zealand 2001
+Corresponding author.
H01001
Received 4 January
2001; accepted 5 September 2001
PDF file of entire paper: medium quality (533K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
