AI Article Synopsis
- The study evaluates the effectiveness of 5% niclosamide ethanolamine granules in killing Oncomelania hupensis snails, aiming to develop a new method for controlling snail populations in high-risk environments.
- Field tests were conducted in two counties with varying doses and conditions, showing varying levels of snail mortality after 1, 3, and 7 days post-spraying.
- Results indicate that the granules significantly reduce snail populations, especially when combined with environmental cleaning, achieving over 90% mortality rates in controlled settings by day 15.
Article Abstract
Objective: To evaluate the field molluscicidal effect of 5% niclosamide ethanolamine granules, so as to provide a novel Oncomelania hupensis snail control approach for emergency treatment of high-risk settings.
Methods: Snail control tests with spraying of 5% niclosamide ethanolamine granules were conducted in two settings of 2 counties, and the dose-, time- and setting-specific field molluscicidal effects were tested.
Results: In the small-scale setting, spraying of 5% niclosamide ethanolamine granules at doses of 30, 40 and 50 g/m2 resulted in 54.55%, 68.41% and 73.45% 1-day snail mortality, 57.27%, 68.59% and 80.28% 3-day snail mortality, and 63.49%, 77.58% and 85.55% 7-day snail mortality, respectively, and no significant differences were detected in 1- and 3-day snail mortality caused by spraying of 5% niclosamide ethanolamine granules at doses of 30 and 40 g/m2 (all P > 0.05), while significant difference was found in the 7-day snail mortality (χ2 = 4.549, P < 0.05). In addition, spraying of 5% niclosamide ethanolamine granules at doses of 40 and 50 g/m2 resulted in comparable 1-, 3- and 7-day snail mortality (all P > 0.05). In the large-scale setting, spraying of 5% niclosamide ethanolamine granules at a dose of 40 g/m2 resulted in 85.29% and 87.70% 3-day snail mortality, 83.89% and 91.02% 7-day snail mortality, and 83.41% and 91.84% 15-day snail mortality in the environment-cleaning group and non-cleaning group, respectively. The overall snail mortality was 90.02% in the environment-cleaning group 3 to 15 days after spraying, which was significantly higher than that (84.28%) in the non-cleaning group (χ2 = 9.950, P < 0.05). After 15 days of spraying with 5% niclosamide ethanolamine granules at a dose of 40 g/m2, the densities of living snails reduced from 19.90 and 19.83 snails/0.1 m2 to 0.60 and 2.60 snails/0.1 m2 in the environment-cleaning group and non-cleaning group, with 96.98% and 86.89% reductions, respectively.
Conclusion: The appropriate dose of 5% niclosamide ethanolamine granules is 40 g/m2 for snail control in the field, and environment cleaning of vegetation with a height of more than 50 cm may improve the molluscicidal efficacy.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Symbiotic bacteria associated with entomopathogenic nematodes showed molluscicidal activity against Biomphalaria glabrata, an intermediate host of Schistosoma mansoni.
Parasit Vectors
December 2024
Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.
Background: Biomphalaria glabrata acts as the intermediate host of schistosomes that causes human schistosomiasis. Symbiotic bacteria, Xenorhabdus and Photorhabdus associated with Steinernema and Heterorhabditis, produce secondary metabolites with several biological activities. Controlling B.
View Article and Find Full Text PDFHISTOPATHOLOGIC FINDINGS IN 10 CASES OF MORTALITY IN CAPTIVE MALAYSIAN FIRE SNAILS ().
J Zoo Wildl Med
December 2024
Animal Health Department, Chester Zoo, Upton, Chester, CH2 1LH, United Kingdom.
Malaysian fire snails , face threats to their environment, including habitat destruction and the illegal wildlife trade. Captive breeding projects are likely to play a role in the survival of this species; however, mortality in captive populations potentially presents a significant challenge. This paper presents the results of histopathologic examination of tissues from 10 casualties in a captive population at Chester Zoo.
View Article and Find Full Text PDFArticle Synopsis
- Norfolk Island is home to a unique land snail population, with 11 species classified as endangered or extinct due to habitat loss and predators.
- Since 2020, targeted surveys have reassessed the threat status of these snails, tracking species' distributions and implementing conservation strategies like predator control and breeding programs.
- Though initial breeding efforts showed high mortality rates, improvements in care resulted in sustainable growth rates, highlighting the need for better predator management and further refinement of conservation methods.
Background: Seawater drowning (SWD) has been an escalating hazard in recent years. It can not only cause immediate death but can also inflict severe complications, such as acute lung injury (ALI), which greatly increases the mortality rate. Thus, investigating the mechanism of SWD induced lung injury and discovering effective treatments is of great importance.
View Article and Find Full Text PDFMolluscicidal Activity of Extracts and Fractions From , , and Against and Snails.
J Parasitol Res
November 2024
Department of Microbial, Cellular and Molecular Biology, College of Natural and Computational Sciences, Addis Ababa University, PO Box 1176, Addis Ababa, Ethiopia.
: Schistosomiasis continues to be a major public health concern in Ethiopia. Eliminating the intermediate host snails is an effective and cost-efficient strategy for preventing and controlling schistosomiasis transmission. However, chemical molluscicides have limitations due to their toxicity to nontarget aquatic organisms, environmental concerns, and the development of resistance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!