Preventative Disease Management and Grower Decision Making: A Case Study of California Wine-Grape Growers.

摘要: Preventative disease management is challenging to farmers because it requires paying immediate costs in the hopes of returning uncertain future benefits. Understanding farmer decision making about prevention has potential reduce incidence and minimize need for more costly postinfection practices. For example, grapevine trunk-disease complex (esca, Botryosphaeria dieback, Eutypa Phomopsis dieback) significantly affects vineyard productivity longevity. Given chronic nature infections inability eradicate fungal pathogens, preventative practices delayed pruning, applications pruning-wound protectants, double pruning (also known as prepruning) are most effective means management. We surveyed wine-grape growers six regions California on their use these three In spite acknowledging yield impacts trunk diseases, a substantial number respondents either choose not or incorrectly adopted them mature vineyards, too late cycle be effective. Growers with negative perceptions cost efficacy were less likely adopt time adoption vineyards. general, may require strong intervention form policy extension motivate behavioral change.