Kiwifruit banana. Once a kiwifruit is ripe, however, it is preserved optimally when stored far from other fruits, as it is very sensitive to the ethylene gas they may emit, thereby tending to over-ripen even in the refrigerator. If stored appropriately, ripe kiwifruit normally keep for about one to two weeks. "Pseudomonas syringae actinidiae" (PSA) was first identified in Japan in the 1980s. This bacterial strain has been controlled and managed successfully in orchards in Asia. In 1992, it was found in northern Italy. In 2007/2008, economic losses were observed, as a more virulent strain became more dominant (PSA V). In
Kiwifruit industry in New Zealand had the rights to establish market standards such as fruit size, quality and packaging of kiwifruit for export markets, the Authority also acted as an adviser to the government. This gave growers some control of licensing exporters. The total volume of kiwifruit exports rapidly increased from the late 1960s to early 1970s. During this time, the number or exporting firms also dramatically increased. By 1976, the total volume of fruit New Zealand produced had exceeded the volume domestically consumed. In the 1980s other countries began to export kiwifruit, and New Zealand lost its first-mover advantage. The seven licensed exporters in