目的 评价4％杀螺胺乙醇胺盐粉剂在沟渠环境的灭螺效果,为现场扩大应用提供科学依据. 方法 选择湖北省江陵县马家寨乡有钉螺孳生的5条垸内沟渠,随机选择其中2条沟渠为4％杀螺胺乙醇胺盐(niclosamide ethanolamine powder,4％NEP)试验组,2条分别为26％四聚·杀螺胺悬浮液(sus-pension concentrate of 26％ metaldehyde and niclosamide,26％SCMN)和50％氯硝柳胺乙醇胺盐可湿性粉剂(wetable powder of 50％ niclosamide ethanolamine salt,50％WPNES)对照组,1条为空白对照组.分别采用25、50 g/m2两种剂量的4％NEP剂进行喷粉法灭螺,与26％SCMN、50％WPNES喷洒灭螺效果进行比较.施药前及施药1、3、7d后,采用系统抽样法对5条沟渠按框距10 m设框进行钉螺调查,检测所有拣获钉螺,统计钉螺数量和死亡数.采用SPSS 17.0软件对施药后的钉螺死亡率进行统计学分析.分析不同药物的灭螺费用. 结果 施药后,各组钉螺死亡率均逐渐上升,25、50 g/m2两种剂量的4％NEP组施药1、3、7 d后钉螺死亡率依次为73.68％(336/456)、81.84％ (383/468)、80.75％(344/426)和74.76％(391/523)、85.86％ (425/495)、82.99％ (366/441);26％SCMN组施药1、3、7d后的钉螺死亡率依次为70.77％ (351/496)、80.59％ (353/438)、82.01％ (319/389);50％WPNES组施药1、3、7d后的钉螺死亡率依次为69.95％(291/416)、81.35％(314/386)、75.61％ (248/328).经统计学分析,施药后1d,4％NEP 25 g/m2组、4％NEP50 g/m2组分别与50％ WPNES和26％ SCMN组比较,钉螺死亡率差异无统计学意义(x2分别为0.t48,1.500,1.007,2.696,2.052,P均＞0.05);施药后3d,4％NEP 50 g/m2组与26％SCMN组比较,钉螺死亡率间差异有统计学意义(x2=4.650,P＜0.05);4％NEP 25 g/m2组分别与4％NEP 50 g/m2组、50％WPNES组和26％SCMN组比较,钉螺死亡率间差异无统计学意义(x2=2.880,0.034,0.230,P均＞0.05);4％ NEP50 g/m2组与50％WPNES组比较,钉螺死亡率差异无统计学意义(x2=3.265,P＞ 0.05).施药后7d,4％NEP 50 g/m2组与50％WPNES组比较,钉螺死亡率差异有统计学意义(x2=6.372,P＜ 0.05);4％NEP 25 g/m2 组分别与4％NEP 50 g/m2组、50％WPNES组和26％SCMN组比较,钉螺死亡率间差异无统计学意义(x2分别为0.734,2.904,0.211;P均＞0.05);4％NEP 50 g/m2组与26％SCMN组比较,钉螺死亡率间差异无统计学意义(x2=1.140,P＞ 0.05).灭螺效果均优于对照组.4％NEP 25 g/m2、50 g/m2组灭螺费用分别为16.31元/100 m2、27.28元/100 m2;26％SCMN组费用为30.84元/100 m2;50％WPNES组费用为32.24元/100 m2. 结论 4％杀螺胺乙醇胺盐粉剂可在缺少充足水源的沟渠环境实施灭螺,效果较好且较为便宜.
目的 評價4％殺螺胺乙醇胺鹽粉劑在溝渠環境的滅螺效果,為現場擴大應用提供科學依據. 方法 選擇湖北省江陵縣馬傢寨鄉有釘螺孳生的5條垸內溝渠,隨機選擇其中2條溝渠為4％殺螺胺乙醇胺鹽(niclosamide ethanolamine powder,4％NEP)試驗組,2條分彆為26％四聚·殺螺胺懸浮液(sus-pension concentrate of 26％ metaldehyde and niclosamide,26％SCMN)和50％氯硝柳胺乙醇胺鹽可濕性粉劑(wetable powder of 50％ niclosamide ethanolamine salt,50％WPNES)對照組,1條為空白對照組.分彆採用25、50 g/m2兩種劑量的4％NEP劑進行噴粉法滅螺,與26％SCMN、50％WPNES噴灑滅螺效果進行比較.施藥前及施藥1、3、7d後,採用繫統抽樣法對5條溝渠按框距10 m設框進行釘螺調查,檢測所有揀穫釘螺,統計釘螺數量和死亡數.採用SPSS 17.0軟件對施藥後的釘螺死亡率進行統計學分析.分析不同藥物的滅螺費用. 結果 施藥後,各組釘螺死亡率均逐漸上升,25、50 g/m2兩種劑量的4％NEP組施藥1、3、7 d後釘螺死亡率依次為73.68％(336/456)、81.84％ (383/468)、80.75％(344/426)和74.76％(391/523)、85.86％ (425/495)、82.99％ (366/441);26％SCMN組施藥1、3、7d後的釘螺死亡率依次為70.77％ (351/496)、80.59％ (353/438)、82.01％ (319/389);50％WPNES組施藥1、3、7d後的釘螺死亡率依次為69.95％(291/416)、81.35％(314/386)、75.61％ (248/328).經統計學分析,施藥後1d,4％NEP 25 g/m2組、4％NEP50 g/m2組分彆與50％ WPNES和26％ SCMN組比較,釘螺死亡率差異無統計學意義(x2分彆為0.t48,1.500,1.007,2.696,2.052,P均＞0.05);施藥後3d,4％NEP 50 g/m2組與26％SCMN組比較,釘螺死亡率間差異有統計學意義(x2=4.650,P＜0.05);4％NEP 25 g/m2組分彆與4％NEP 50 g/m2組、50％WPNES組和26％SCMN組比較,釘螺死亡率間差異無統計學意義(x2=2.880,0.034,0.230,P均＞0.05);4％ NEP50 g/m2組與50％WPNES組比較,釘螺死亡率差異無統計學意義(x2=3.265,P＞ 0.05).施藥後7d,4％NEP 50 g/m2組與50％WPNES組比較,釘螺死亡率差異有統計學意義(x2=6.372,P＜ 0.05);4％NEP 25 g/m2 組分彆與4％NEP 50 g/m2組、50％WPNES組和26％SCMN組比較,釘螺死亡率間差異無統計學意義(x2分彆為0.734,2.904,0.211;P均＞0.05);4％NEP 50 g/m2組與26％SCMN組比較,釘螺死亡率間差異無統計學意義(x2=1.140,P＞ 0.05).滅螺效果均優于對照組.4％NEP 25 g/m2、50 g/m2組滅螺費用分彆為16.31元/100 m2、27.28元/100 m2;26％SCMN組費用為30.84元/100 m2;50％WPNES組費用為32.24元/100 m2. 結論 4％殺螺胺乙醇胺鹽粉劑可在缺少充足水源的溝渠環境實施滅螺,效果較好且較為便宜.
목적 평개4％살라알을순알염분제재구거배경적멸라효과,위현장확대응용제공과학의거. 방법 선택호북성강릉현마가채향유정라자생적5조완내구거,수궤선택기중2조구거위4％살라알을순알염(niclosamide ethanolamine powder,4％NEP)시험조,2조분별위26％사취·살라알현부액(sus-pension concentrate of 26％ metaldehyde and niclosamide,26％SCMN)화50％록초류알을순알염가습성분제(wetable powder of 50％ niclosamide ethanolamine salt,50％WPNES)대조조,1조위공백대조조.분별채용25、50 g/m2량충제량적4％NEP제진행분분법멸라,여26％SCMN、50％WPNES분쇄멸라효과진행비교.시약전급시약1、3、7d후,채용계통추양법대5조구거안광거10 m설광진행정라조사,검측소유간획정라,통계정라수량화사망수.채용SPSS 17.0연건대시약후적정라사망솔진행통계학분석.분석불동약물적멸라비용. 결과 시약후,각조정라사망솔균축점상승,25、50 g/m2량충제량적4％NEP조시약1、3、7 d후정라사망솔의차위73.68％(336/456)、81.84％ (383/468)、80.75％(344/426)화74.76％(391/523)、85.86％ (425/495)、82.99％ (366/441);26％SCMN조시약1、3、7d후적정라사망솔의차위70.77％ (351/496)、80.59％ (353/438)、82.01％ (319/389);50％WPNES조시약1、3、7d후적정라사망솔의차위69.95％(291/416)、81.35％(314/386)、75.61％ (248/328).경통계학분석,시약후1d,4％NEP 25 g/m2조、4％NEP50 g/m2조분별여50％ WPNES화26％ SCMN조비교,정라사망솔차이무통계학의의(x2분별위0.t48,1.500,1.007,2.696,2.052,P균＞0.05);시약후3d,4％NEP 50 g/m2조여26％SCMN조비교,정라사망솔간차이유통계학의의(x2=4.650,P＜0.05);4％NEP 25 g/m2조분별여4％NEP 50 g/m2조、50％WPNES조화26％SCMN조비교,정라사망솔간차이무통계학의의(x2=2.880,0.034,0.230,P균＞0.05);4％ NEP50 g/m2조여50％WPNES조비교,정라사망솔차이무통계학의의(x2=3.265,P＞ 0.05).시약후7d,4％NEP 50 g/m2조여50％WPNES조비교,정라사망솔차이유통계학의의(x2=6.372,P＜ 0.05);4％NEP 25 g/m2 조분별여4％NEP 50 g/m2조、50％WPNES조화26％SCMN조비교,정라사망솔간차이무통계학의의(x2분별위0.734,2.904,0.211;P균＞0.05);4％NEP 50 g/m2조여26％SCMN조비교,정라사망솔간차이무통계학의의(x2=1.140,P＞ 0.05).멸라효과균우우대조조.4％NEP 25 g/m2、50 g/m2조멸라비용분별위16.31원/100 m2、27.28원/100 m2;26％SCMN조비용위30.84원/100 m2;50％WPNES조비용위32.24원/100 m2. 결론 4％살라알을순알염분제가재결소충족수원적구거배경실시멸라,효과교호차교위편의.
Objective To evaluate the molluscicidal effect of 4％ niclosamide ethanolamine powder (4％NEP) in ditch areas so as to offer the scientific evidence for its field application.Methods Five ditches located in embankment areas with Oncomelania breeding in Majiazhai Township,Jiangling County,Hubei Province were enrolled as study areas.Among them,2 ditches were selected as study group with 4％NEP,3 ditches were selected as control group with suspension concentrate of 26％ metaldehyde and niclosamide (26％SCMN),the wetable powder of 50％ niclosamide ethanolamine salt (50％WPNES) and blank,respectively.The dosage of 25 g/m2 and 50 g/m2 of 4％NEP were sprayed,and compare with the results of 26％SCMN and 50％WPNES.Before and 1,3,7 d After spraying,snail survey by systematic sampling was implemented to 5 ditches.The frame interval was 10 m,and all snails were collected and examined,the snail amount and death amount were counted.SPSS 17.0 were applied for snail death rate analysis.The molluscicidal cost of varies molluscicidals was compared.Results After spraying,the snail death rates of study and control groups went up.The snail death rate of 25 g/m2 and 50 g/m2 of 4％ NEP at1,3 and 7 d after spraying were 73.68％(336/456),81.84％(383/468),80.75％(344/426) and 74.76％(391/523),85.86％(425/495),82.99％(366/441).The snail death rates of 26％SCMN at 1,3 and 7 d after spraying were 70.77％(351/496),80.59％(353/438) and 82.01％(319/389).The results of 50％ WPNES were 69.95％(291/416),81.35％(314/386) and 75.61％(248/328).The molluscicidal effect at 1 d after spraying 25 g/m2 and 50 g/m2 of 4％NEP,26％SCMN and 50％WPNES were of no statistic difference(x2=0.148,1.500,1.007,2.696,2.052,P＞0.05).At 3 d after spraying,there was difference between 50g/m2 of 4％NEP and 26％SCMN (x2=4.650,P＜0.05),while 25 g/m2 and 50 g/m2 of 4％NEP,26％ SCMN and 50％WPNES were of no statistic difference (x2=2.880,0.034,0.230,P＞0.05),and no difference between 50g/m2 of 4％NEP and 50％WPNES(x2=3.265,P＞0.05).At 7 d after spraying,there was difference between 50 g/m2 of 4％NEP and 50％WPNES(x2=6.372,P＜0.05); 25 g/m2 and 50 g/m2 of 4％ NEP,50％WPNES and 26％SCMN were of no statistic difference(x2=0.734,2.904,0.211,P＞0.05); and no difference between 50g/m2 of 4％NEP and 26％SCMN (x2=1.140,P＞0.05).The molluscicidal effect of 4％ NEP was better than that of control group.The costs of 4％NEP at dosage of 25 g/m2 and 50 g/m2 were 16.31 and 27.28 yuan/100m2,while it was 30.84 yuan/100m2 of 26％SCMN and 32.24yuan/100 m2 of 50％ WPNES.Conclusion There is high molluscicidal effect of 4％NEP at 50 g/m2 dosage and it is suitable for field application where is in shortage of plenty water in ditch areas.
