Germination and survival of <i>Neofusicoccum luteum</i> after different storage treatments

Authors

  • R.G. Billones
  • J.J. Brookes
  • E.E. Jones
  • H.J. Ridgway
  • M.V. Jaspers

DOI:

https://doi.org/10.30843/nzpp.2010.63.6590

Abstract

Neofusicoccum luteum is a widespread fungal pathogen of grapevines The germination and survival of N luteum conidia was tested following storage at different temperatures and times The conidia (105/ ml water) were incubated at 2 8 and 2023C (ambient temperature) for 0 2 4 24 48 72 h 1 2 and 3 weeks The conidial suspensions were then microscopically examined for conidial germination adjusted to 102/ml and 100 l spread onto PDA to check for viability At ambient temperature 67 of conidia germinated after 2 h and 74 after 48 h When held at 8C 23 of conidia germinated after 24 h and the proportion gradually increased up to 33 in 2 weeks while at 2C 4 had germinated after 48 h increasing to 19 in 3 weeks The maximum periods of viability of stored conidia (as determined by their ability to form colonies on PDA) was 48 h for ambient temperature 2 weeks for 8C and 3 weeks for 2C This research showed that N luteum can germinate quickly at normal summer temperatures as well as at low winter temperatures so can infect trimming wounds during summer and pruning wounds during winter

Downloads

Published

2010-08-01

How to Cite

[1]
Billones, R., Brookes, J., Jones, E., Ridgway, H. and Jaspers, M. 2010. Germination and survival of &lt;i&gt;Neofusicoccum luteum&lt;/i&gt; after different storage treatments. New Zealand Plant Protection. 63, (Aug. 2010), 278–278. DOI:https://doi.org/10.30843/nzpp.2010.63.6590.

Issue

Section

Poster Abstracts