曼尼托巴省温尼伯的Deltagard®20EW操作功效的空间分析评估
作者
Pawluk,詹妮弗·艾玛(Jennifer Emma)
日期
2022-08-31引用
Pawluk,詹妮弗·艾玛(Jennifer Emma)。曼尼托巴省温尼伯的Deltagard®20EW操作功效的空间分析评估,用于成人蚊子控制;研究论文是部分履行理科硕士学位的要求...生物科学,技术和公共政策系,生物学系...,温尼伯大学。亚愽国际app下载加拿大曼尼托巴省温尼伯:温尼伯大学,2022年。DOI:亚愽国际app下载10.36939/ir.202209081431。
抽象的
背景:减排蚊子包括滋扰和潜在媒介蚊子的管理和监视。曼尼托巴省温尼伯的主要滋扰蚊子是AE。Vexans,洪水蚊子。温尼伯昆虫控制分支机构在其蚊子减少计划中使用监视,消除幼虫和成人剂。当其他方法不足时,成人胺的应用是最后的手段。这项研究对曼尼托巴省温尼伯的野生蚊子进行操作测试了Deltagard®20EW成人疗法疗效,作为替代先前使用的Malathion95ulv®,同时考虑了景观特征的效果。方法:从2010年7月和2020年7月开始,新泽西州的光线和疾病控制蚊子陷阱数据被用于检测Malathion95®Ulv(2010)和Deltagard®20EW(2020年)之前和之后的成人蚊子活动的变化。通过应用空间分析工具比较了经常是蚊子热点和从未有热点的陷阱周围的景观特征。进行了Kriging分析以估计全市蚊子活动的变化。机翼长度被用作成年蚊子体大小的代理,以确定体大小是否与蚊子寿命正相关。 Results: No significant difference was detected when comparing post-spray mosquito trap counts in treated and untreated (experimental control) locations in July 2010 or July 2020. When daily changes in mosquito activity were analyzed in the treatment group, a significant decrease in mosquito activity was detected in the group treated with Malathion 95ULV® the day after treatment with the effect lasting for two days. No significant daily changes in mosquito activity were detected after DeltaGard®20EW application. There were no significant differences between mosquito activity hot spot locations and non-hot spot locations when tree density, proximity to rivers, proximity to parks/open spaces, or parks/opem spaces density were analyzed spatially. However, hot spots were found to have more trees in a 50m radius and to be closer to rivers. A significant positive correlation between longevity and adult mosquito body size (Ae. vexans) was detected. Conclusions: The lack of significance when comparing traps in areas treated with DeltaGard®20EW and untreated areas indicates that changes may be due to natural background fluctuations in mosquito activity and population. Significant daily decreases in mosquito activity in the treatment groups were detected the day following Malathion 95ULV® treatment. The lack of significance in the DeltaGard®20EW trials may be due to issues with modelling like a lack of untreated trap locations for comparison, a starting population that was too low to detect significant changes, a lack of specific knowledge about the cumulative egg bank and Ae. vexans biology, too few trap locations, traps being placed strategically instead of randomly, the challenge of measuring background mosquito activity and population dynamics, and a lack of meteorological and landscape data specific to trap locations. Measuring adulticide efficacy in wild mosquitoes and creating models to analyze changes in their activity is challenging. A significant positive correlation between longevity and adult mosquito body size was detected for Ae. vexans mosquitoes, although further research should track specific cohorts of mosquitoes over time.