This standard stipulates the time, methods and content of pear psyllid reporting surveys, as well as the statistics, collection and reporting methods of reporting data. This standard is applicable to the detection and investigation of pear psyllids.
DB34/T 452-2004 history
2022DB34/T 452-2022 Specifications for survey and report of pear psyllid
2004DB34/T 452-2004 Specifications for survey and report of pear psyllid