Heilongjiang Provincial Standard of the People's Republic of China
Latest
DB23/T 2702-2020
Scope
This document stipulates the meteorological classification and index calculation of corn borer occurrence. This document is applicable to the monitoring, forecasting and assessment of meteorological conditions for corn borer occurrence.
DB23/T 2702-2020 history
2020DB23/T 2702-2020 Meteorological grade of occurrence of corn borer