This part of YC/T 341 specifies the methods for systematic investigation and field census of tobacco brown spot disease, as well as the methods for collecting, reporting and summarizing forecast data. This section applies to the reporting and reporting of tobacco brown spot disease at all levels of reporting stations.
YC/T 341.1-2010 Referenced Document
GB/T 23222 Grade and investigation method of tobacco diseases and insect pests
YC/T 341.1-2010 history
2010YC/T 341.1-2010 Rules for investigation and forecast of tobacco diseases-Part 1:Tobacco brown spot