Space Distribution Pattern of Bradysia odoriphaga in Bupleurum chinense Planting Fields
To investigate the characteristics of the spatial pattern of Bradysia odoriphaga in Bupleurum chinense planting regions,a survey was conducted on the spatial distribution of Bradysia odoriphaga adults and larvaeon Bupleurum chinense in Lueyang from May to June in 2022.The spatial distribution pattern of Bradysia odoriphaga was determined using frequency distribution method.The results showed that both the larvae and adults of Bradysia odoriphaga on Bupleurum chinense exhibited an aggregated distribution,following a negative binomial distribution.In the Bupleurum chinense planting fields,the adults of Bradysia odoriphaga were mainly observed above the top of the plant,with 71.51%of adults found within the height range of 0 to 30.00 cm above the plant top.Among them,the highest concentration of adults was observed at approximately 15.00 cm above the top of the plant,with a cor-responding count of 10.6 adults adhering to the armyworm plate.
Bradysia odoriphagaBupleurum chinenseSpace distribution pattern