The March issue of Grapegrower & Winemaker has a vineyard focus and includes an update on measures being taken to secure local supplies of fertiliser in Australia amidst ongoing supply chain issues. We also delve into a data-driven future with the latest innovations related to precision viticulture. Writer Simon Madden-Grey digs up perspectives on cover crops to improve soil and vineyard biodiversity, while we look into the spread of introduced harlequin ladybirds in New Zealand that could cause problems for wine producers. With heavy rainfall and unusually high humidity affecting many Australian wine regions over summer, we discover what the possible impact of this could be on vintage. As alternative varieties continue be mainstreamed in Australia, we take a look at one rising star: Nero d’Avola. Heading into the winery, Sonya Logan explores the use of ultrafiltration as a way to ameliorate phenolics. Meantime, winemaker Paul Le Lacheur uncovers the pros and cons of using ozone as a winery sanitiser. We also
