This part of YC/T 341 specifies the methods for the base number investigation, systematic investigation, and field census of tobacco root-knot nematode overwintering insect sources, as well as the methods for collecting, reporting, and summarizing forecast data. This section is applicable to the forecasting and reporting of tobacco root-knot nematode disease at forecasting and reporting stations at all levels.
YC/T 341.5-2010 history
2010YC/T 341.5-2010 Rules for investigation and forecast of tobacco diseases-Part 5:Tobacco root knot