Qualls Whitney A, Xue Rui-De
Anastasia Mosquito Control District, 500 Old Beach Road, St. Augustine, FL 32080, USA.
J Am Mosq Control Assoc. 2010 Jun;26(2):219-22. doi: 10.2987/10-5993.1.
DUET was evaluated against field-collected mosquito populations in St. John's County, FL, under laboratory and field conditions. Ten serial dilutions ranging from 22 to 2.2E-08 microg/ml of the product were tested against Aedes albopictus, Ae. taeniorhynchus, Culex quinquefasciatus, and Psorophora columbiae. At 0.0022 microg/ml, 100% mortality was recorded for all species except for Cx. quinquefasciatus. The 50% lethal concentration value for Cx. quinquefasciatus was 0.0029 microg/ml (CI = 0.00069 to 0.013). At the lowest dilution (2.2E-08 microg/ml) evaluated, Ae. albopictus, Ae. taeniorhynchus, and Ps. columbiae showed > 50% mortality. Ground ultralow-volume application of DUET resulted in overall average mortality of 87% of field-collected Cx. quinquefasciatus mosquitoes. There was a significant difference in mortality based on the distance of the caged mosquitoes (P < 0.05). However, mortality was > 70% at the farthest distance from the application (106 m).
在实验室和野外条件下，对佛罗里达州圣约翰县野外采集的蚊虫种群进行了DUET评估。针对白纹伊蚊、致倦库蚊、埃及伊蚊和哥伦比亚骚蚊，测试了该产品从22至2.2E-08微克/毫升的10个系列稀释液。在0.0022微克/毫升浓度下，除致倦库蚊外，所有物种的死亡率均达到100%。致倦库蚊的半数致死浓度值为0.0029微克/毫升（置信区间=0.00069至0.013）。在评估的最低稀释度（2.2E-08微克/毫升）下，白纹伊蚊、埃及伊蚊和哥伦比亚骚蚊的死亡率超过50%。DUET地面超低容量喷洒导致野外采集的致倦库蚊总体平均死亡率为87%。根据笼养蚊虫的距离，死亡率存在显著差异（P<0.05）。然而，在距喷洒最远的距离（106米）处，死亡率仍超过70%。
