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
Gooseberry introduction. Although usually placed as a subgenus within "Ribes", a few taxonomists treat "Grossularia" as a separate genus, although hybrids between gooseberry and blackcurrant (e.g., the jostaberry) are possible. The subgenus "Grossularia" differs somewhat from currants, chiefly in their spiny stems, and in that their flowers grow one to three together on short stems, not in racemes. It is one of several similar species in the subgenus "Grossularia"; for the other related species (e.g., North American gooseberry "Ribes hirtellum"), see the genus page "Ribes". The "goose" in "gooseberry" has usually been seen as a corruption of either the Dutch word