Field efficacy of diphacinone sodium salt and bromadiolone poison bait against Meriones unguiculatus in Kangbao pasture

LIU Guanchun; YAN Dong; SONG Ming; CHEN Yongming; ZHOU Song; HOU Zhilin; REN Xingyu; KANG Dongmei; LIU Xiaowei; YANG Xiaoyan; LAN Xiaoyu; YAN Ping

doi:10.19821/j.1671-2781.2024.03.005

Abstract：Objective To observe the field control effect of different drugs and poison baits on Meriones unguiculatus in summer,so as to provide reference for plague prevention and control.Methods In summer,field rodent control tests were carried out in Kangbao pasture using 0.05％diphacinone sodium salt and 0.005％bromadiolone,and the baits were given according to the hole.At the same time,the control group was set up without baits.The rodent density was estimated by method of hole plugging and check.The deratization effects were calculated by the field rodent density of the experimental groups and the control groups before and after treatment.The palatability of Meriones unguiculatus to different poison baits was calculated by counting the stealing rate of baits,the consumption of baits and the consumption of baits being eaten up on the 1st,2nd and 3rd days after baiting.Results The corrected effect of 0.05％diphacinone sodium salt poison bait on Meriones unguiculatus in wasteland was 90.07％.The corrected effect of 0.05％diphacinone sodium salt poison bait,0.005％bromadiolone residual corn poison bait and 0.005％bromadiolone naked oat poison bait on Meriones unguiculatus in artificial grassland were 86.52％,85.94％,and 83.87％,respectively.The rodent control effects of different baits were good in both habitats.There were statistical differences in the palatability of Meriones unguiculatus to three different poison baits,and 0.005％bromadiolone naked oat was the best.Conclusion In summer,the anticoagulant rodenticide diphacinone sodium salt and bromadiolone still had a good control effect on Meriones unguiculatus,and the naked oat bait containing 0.005％bromadiolone with the best palatability should be preferred.In terms of drug selection,the first generation anticoagulant rodenticide diphacinone sodium salt was preferred.If Meriones unguiculatus developed resistance to diphacinone sodium salt,the second generation anticoagulant rodenticide bromadiolone was selected.The palatability of naked oats was superior to other baits.