Survey of pesticide application practices and technologies in Georgia agronomic crops

Abstract Pesticide regulations and application technologies are changing rapidly due to rising concerns around off-target movement of pesticides and increased focus on improving the efficiency of pesticide applications. In order to conduct relevant applied research and develop educational programs related to pesticide application, it is critical to understand common application practices and technologies utilized by growers. A survey was conducted to assess common pesticide application practices and technologies utilized by Georgia growers. Both online and printed survey copies were distributed by county Extension agents to growers in all 159 counties. A total of 186 responses representing agronomic crops in 65 counties were received and analyzed for results. Main results of this survey indicated that: 1) 72% of respondents produced ≥ 200 ha of crops; 2) 29% of respondents received their information from University Extension; 3) 42% of respondents used a separate sprayer for applications of dicamba, 2,4-D, or 2,4-DB; 4) 46% of respondents used sprayers with boom lengths ≥ 18.3 m; 5) 65% of respondents used ≥ 121 L/ha to apply pesticides; 6) 53% of respondents used 3 or more different nozzles on their spray booms throughout the season; 7) 68% of respondents used TeeJet® nozzles; 8) 65% of respondents used GPS and rate controllers on their application equipment; 9) 66% of respondents recorded their pesticide application data on a notepad or diary; and 10) 39% of respondents reported that application accuracy is the biggest advantage of new spray technologies. Respondents also reported that weather, timing, and pesticide drift/regulations were their biggest application challenges and need more research conducted on topics such as rates, carrier volumes, pest control, chemicals and adjuvants. Information from this survey provides useful insights into the current application practices, technologies, and research needs of Georgia growers and will be utilized for developing appropriate research and educational efforts.