The appearance of PPV in Pennsylvania highlights
the ever-present risks posed by virus diseases and
serves to raise the level of awareness that all growers
need to possess. Orchard sanitation and good
cultural practices are key issues in the prevention of
virus problems. Start with a clean orchard site,
purchase clean planting material and be conscientious
about keeping virus reservoirs and vectors under
control. (February 2013)
AGRS-81. This 88-page pocket-sized field guide provides hundreds of photographs and descriptions of common stone fruit disease symptoms. Detailed images focus on PPV symptoms in peach, apricot, and plum fruit and leaves. Other sections describe and illustrate diseases and conditions such as bacterial spot, anthracnose, powdery mildew, and nutritional disorders. Essential for all stone fruit growers.
In 2007 to 2009 analyses of PPV survey data showed that all quarantined areas met the three-year requirement of no new positives. Lifting the quarantine in Pennsylvania opens many acres for replanting Prunus. New plantings offer the opportunity for a “fresh start” and growers must plan carefully to get the most from their investment.
Many factors influence orchard replant success and these can be divided into two very broad categories that include economics and orchard renovation.