Since 2000, the California Department of Food and Agriculture (CDFA), has spent approximately $40 million per year to contain and control the Glassy Winged Sharpshooter (GWSS), which spreads Pierce’s Disease (PD). Compliance with the program has cost the nursery industry approximately $7...

Pierce’s Disease (PD) of grapevines costs more than $100 million per year, even with public control programs in place that cost $50 million per year (Tumber et al., 2012). If the PD Control Program ended, and the GWSS was distributed freely throughout California, the annual cost to the...

type="main" xml:id="ajar12045-abs-0001" <p>Several complicating issues arise in evaluating the returns to research into varietal improvements for perennial crops compared with annual crops. We elucidate and address these issues in the context of a case study of research aiming to develop varieties...</p>

Since 2000, approximately $50 million per year has been spent to control infestations of the Glassy-Winged Sharpshooter (GWSS), an insect that spreads Pierce’s Disease (PD). This amount includes the costs of state and federal efforts to monitor and control the GWSS, research on PD/GWSS,...