机构地区:[1]江西省农业科学院植物保护研究所,江西南昌330200 [2]中国疾病预防控制中心寄生虫病预防控制所(国家热带病研究中心)、国家卫生健康委员会寄生虫病原与媒介生物学重点实验室(中国疾病预防控制中心寄生虫病预防控制所)、WHO热带病合作中心,上海200025 [3]江西省鹰潭市余江区农业农村粮食局 [4]中化作物保护品有限公司 [5]上海交通大学药学院
出 处:《中国血吸虫病防治杂志》2024年第5期441-449,共9页Chinese Journal of Schistosomiasis Control
基 金:国家重点研发计划(2021YFC2300803,2021YFC2300804);国家自然科学基金(82072309);江西现代农业科研协同创新专项(JXXTCXQN202204,JXXTCXZD202304,JXXTCXNLTS202203)。
摘 要:目的评价在稻田环境中采用无人机喷洒20%吡螺脲硫酸盐悬浮剂(suspension concentrate of pyriclobenzuron sulphate,SCPS)杀灭福寿螺的效果与成本,为吡螺脲在福寿螺控制领域的推广应用提供参考。方法2022年7月,选择江西省南昌市某块水稻田作为试验区,在试验区设置72块面积为2 m×1 m的长方形独立试验小区,各小区间隔1 m,于每小区轻轻放置20只福寿螺成螺。选取其中54块小区开展25%吡螺脲硫酸盐可湿性粉剂(wettable powder of pyriclobenzuron sulphate,WPPS)灭螺试验,分别设0.50、1.00、2.00、4.00 g/m^(2)WPPS组,药物对照组和空白对照组,每组9个小区。0.50、1.00、2.00、4.00 g/m^(2)WPPS组分别人工喷洒相应浓度药液,药物对照组以人工喷洒0.1 g/m^(2)的50%氯硝柳胺乙醇胺盐可湿性粉剂(wettable powder of niclosamide ethanolamine salt,WPNES),空白对照组人工喷洒等量清水。选取剩余的18块小区开展SCPS灭螺试验,基于WPPS试验结果,分别设0.20、0.30、0.40 g/m^(2)和0.50 g/m^(2)SCPS组,药物对照组、空白对照组,每组3个小区。0.20、0.30、0.40 g/m^(2)和0.50 g/m^(2)SCPS组分别人工喷洒相应浓度药液,药物对照组以人工喷洒0.1 g/m^(2)WPNES,空白对照组以人工喷洒等量清水。2023年7月,选择江西省鹰潭市余江区福寿螺活螺平均密度>5只/m^(2)的14块水稻田作为试验区进行大田灭螺试验,根据小区灭螺试验结果设置0.25、0.50、1.00 g/m^(2)人工喷洒WPPS组,0.25、0.50、1.00、2.00 g/m^(2)人工拌土施撒WPPS组,药物对照组和空白对照组,每组1块试验田。人工喷洒WPPS组、人工拌土施撒WPPS组分别以人工喷洒和拌土施撒的方式施用相应浓度药物,药物对照组以人工喷洒0.1 g/m^(2)WPNES,空白对照组以人工喷洒等量清水。根据小区灭螺试验结果,按照SCPS施药浓度分别为0.25、0.50 g/m^(2)、兑水量分别为2、4 kg/667 m^(2)设置4组SCPS施药组,分别采用无人机喷洒相应剂量SCPS;另设1组空Objective To evaluate the molluscicidal effects and costs of spraying 20%suspension concentrate of pyriclobenzuron sulphate(SCPS)with drones against Pomacea canaliculata in paddy environments,so as to provide insights into the extensive applications of pyriclobenzuron against P.canaliculata.Methods On July 2022,a paddy field was selected from Nanchang City,Jiangxi Province as the study area,and 72 independent rectangular plots measuring 2 m×1 m were allocated in the study area,with 1 m interval between each plot,and 20 P.canaliculata snails gently placed in each plot.The activity of 25%wettable powder of pyriclobenzuron sulphate(WPPS)by manual spraying at doses of 0.50,1.00,2.00 g/m^(2)and 4.00 g/m^(2)against P.canaliculata was tested in 54 plots,and manual spraying of 50%wettable powder of niclosamide ethanolamine salt(WPNES)at a dose of 0.10 g/m^(2)served as a chemical control,while manual spraying of the same volume of clean water served as a blank control,with 9 plots in each group.The activity of SCPS against P.canaliculata was tested in the remaining 18 plots.Based on the molluscicidal tests of WPPS,the molluscicidal effect of SCPS by manual spraying at doses of 0.20,0.30,0.40 g/m^(2)and 0.50 g/m^(2)against P.canaliculata was evaluated,and manual spraying of WPNES at a dose of 0.10 g/m^(2)served as a chemical control,while manual spraying of the same volume of clean water served as a blank control,with three plots in each group.On July 2023,14 paddy fields with a mean living P.canaliculata density of>5 snails/m^(2)were selected from Yujiang District,Yingtan City,Jiangxi Province for molluscicidal tests.Based on the molluscicidal effect of pyriclobenzuron against P.canaliculata in plots,the molluscicidal effects of WPPS by manual spraying at doses of 0.25,0.50 g/m^(2)and 1.00 g/m^(2)and manual applications of WPPS at dose of 0.25,0.50,1.00 g/m^(2)and 2.00 g/m^(2)mixed with soil were tested,and manual spraying of 0.10 g/m^(2)WPNES served as a chemical control group,while manual spraying of the same volume of
关 键 词:福寿螺 吡螺脲 无人机 悬浮剂 可湿性粉剂 死亡率 灭螺成本
分 类 号:R383.19[医药卫生—医学寄生虫学]
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