Dispersal of Botryosphaeriaceae species conidia from infected grapevines in rain water (original) (raw)

Abstract

The mechanisms for dispersal of Botryosphaeria conidia,which can infect grapevines through wounds, were investigated to determine their seasonal prevalence in a New Zealand vineyard and to further develop control strategies. Airborne dispersal was investigated in April 2008 in four vineyards using Vaseline®-coated slides which were collected and replaced weekly. Inspection with a light microscope for characteristic Neofusicoccum and Diplodia conidia, distinguishable by their morphology and colour, found no conidia characteristic of the Botryosphaeriaceae although spores of other fungi were collected. Waterborne conidia were trapped by collecting rainwater that ran off the vines during May 2008–April 2009. The continuously collected rainwater suspensions were examined for characteristic conidia after every significant rainfall event. The rainwater suspensions yielded conidia of the Botryosphaeriaceae, with 59.8% of the conidia caught being Neofusicoccum spp. and 40.2% being Diplodia ...

Nicholas Amponsah hasn't uploaded this paper.

Let Nicholas know you want this paper to be uploaded.

Ask for this paper to be uploaded.