Viticulture research

Effectiveness of sodium hypochlorite as a disinfestation treatment against genetically diverse strains of grape phylloxera

Grape phylloxera causes damage to ungrafted European grapevines, Vitis vinifera L. Where distribution is limited such as in Australia, phylloxera is managed primarily through quarantine protocols.

In Australia, there are 83 known phylloxera genetic strains, and studies have shown differences in susceptibility to some disinfestation treatments.

First instar nymphs are the most dispersive stage and can be transferred from infested to healthy vineyards on footwear and hand-held tools. The current disinfestation protocol recommends a footbath treatment for 30 s with 2% sodium hypochlorite (NaOCl) followed by a water rinse.

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Hot water immersion as a disinfestation treatment for grapevine root cuttings against genetically diverse grape phylloxera

Grape phylloxera is an important biosecurity pest in Australia. As part of a management strategy, movement of grapevine cuttings, rootlings and propagation material must comply with the National Phylloxera Management Protocols which recommend a hot water treatment.

This study validated the effectiveness of the protocol against genetically diverse phylloxera strains and developmental stages.

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Grapevine phylloxera – what we know and don’t know

A presentation by Dr Catherine Clarke on the biology of phylloxera.

Grapevine phylloxera – what we know and don't know (PDF - 1.8 MB)

Page last updated: 18 Jan 2021