Australian Stonefruit Grower Magazine Issue 2 August 2016 | Page 21

Feature The USA now produces around 1 million tonnes of stonefruit annually. Less than 10% of this is exported, with the vast majority grown for domestic consumption. Central Valley deep According to the USDA, by the middle of the 18th Century peaches were so plentiful in the USA that they were commonly mistaken for a native fruit! Most stonefruit are grown in the deep soils of the Central Valley, in the region reaching from Visalia in the south, to Fresno in the north. This area produces 75% of the peaches and company’s carbon footprint and reliance on the grid for power. virtually all the nectarines grown in Despite these efficiencies, other the USA. practices remain traditional. Trees are Perhaps, surprisingly, many farms are still usually pruned to open vase shapes; growers family-owned operations – just really large ones. There have not shifted to more intensive, mechanised trellising. are also a number of co-operative marketing groups. For Labour costs are lower in California than Australia, which example, Mountain View Fruit Sales brings together 11 allows the Californian industry to employ a very large, farming families under the “Summeripe” branding. Many mostly Latino, workforce. families are multigenerational orchardists who can trace their history in the region back 100 years or more. Until relatively recently, many of the orchards in the Plum jobs One of the key differences between the Australian and Central Valley were furrow irrigated. This was possible Californian industries is the larger portion of the industry due to the flatness of the landscape, as well as an abundant that produces plums. Plums represent around 30% of the supply of irrigation water supplied by snow melt in the Californian stonefruit industry, compared to around 15- nearby Sierra Mountains. It is this, combined with a vast 20% of that in Australia. network of irrigation pipes and channels, which has turned There is a huge range of plum varieties grown, many what is essentially a desert into one of the worlds great the result of private breeding programs. This is another food bowls. key difference between the Australian and Californian However, concern about sustainability is finally industries, with the large producers almost all having their resulting in major changes. Recent years of drought have own breeding and development programs, as well as trial seen growers switch to more efficient irrigation practices. orchards for promising new cultivars. Although the 2015–2016 season provided a return to more normal snowfall and welcome flows into rivers and aquifers, most growers now use sub-surface irrigation systems. They also use recycled water in packing operations. Solar panels are also a common sight. For example, the huge Wawona packing operation is 75% solar powered, using 5 acres (2ha) of suntracking solar panels to reduce the summerfruit.com.au Quality control officers sampling fruit on arrival at the packing shed. Photo: J. Ekman august 2016 | Australian Stonefruit Grower 21