Effect of sodium hypochlorite on first instar phylloxera (Daktulosphaira vitifoliae Fitch) mortality

• Autores: Angela Corrie, K. S. Powell, Rebecca Dunstone
• Localización: Australian journal of grape and wine research, ISSN 1322-7130, Vol. 9, Nº 2, 2003, págs. 107-109
• Idioma: inglés
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• Resumen

  • Sodium hypochlorite (NaOCl) is currently recommended for use as a disinfestation treatment for the grape insect pest phylloxera, Daktulosphaira vitifoliae (Homoptera: Phylloxeridae) in Australia. First instar phylloxera is the most active and dispersive stage of the insect and therefore represents a substantial risk of transfer from infested to uninfested vineyards. The dose response experiment reported here tested the effect of three sodium hypochlorite concentrations (0.5 to 2.0%) and immersion times (30 to 600 seconds) on the mortality of first instar phylloxera. One hundred per cent mortality was only achieved when first instars were immersed in 2% sodium hypochlorite for at least 30 seconds. The results are discussed with reference to quarantine recommendations for phylloxera management.