Influence of composted green waste on the population dynamics and dispersal of grapevine phylloxera Daktulosphaira vitifoliae

A field study was conducted, over three grapevine growing seasons, to assess the effect of composted green waste on the population dynamics and risk of dispersal of root-feeding grapevine phylloxera Daktulosphaira vitifoliae on ungrafted Vitis vinifera grapevines. An assessment was also made to determine the effect of compost application on grapevine vigour, grape yield and quality. Phylloxera crawler (first instar) emergence above-ground was significantly increased through the annual application of composted green waste. The implications of these results for phylloxera management on ungrafted grapevines are discussed.