Hou Lin-ke;Huang Ji-kun;Wang Xiao-bing;Hu Rui-fa;Xue Chun-ling

Chinese Acad Sci, Ctr Chinese Agr Policy, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;Beijing Inst Technol, Sch Management & Econ, Beijing 100081, Peoples R China;S China Agr Univ, Coll Econ & Management, Guangzhou 510642, Guangdong, Peoples R China

genetically modified papaya;knowledge;pesticide use

Genetically modified (GM) technology can significantly reduce pesticide use and increase yield in crop production. However, the benefit from reducing pesticide use varies substantially among farmers. The overall goal of this paper is to understand the relationship between farmers' knowledge of GM technology and pesticide use in genetically modified papaya (GMP) production. Based on a survey of 223 farms in three main papaya production provinces in 2010, the data show that almost all papaya planted in 2009 was genetically modified. However, only 28% of papaya farmers knew that they planted GMP, and 55% of them did not know GMP is resistant to papaya ringspot virus (PRSV). Further analyses using the general least squares (GLS) method show that farmers' knowledge of GMP significantly affects their pesticide use, and potential gain from GM technology is far below its full potential. The paper concludes with policy implications.