Stough Jennifer E, Wallace John R
1 Pennsylvania Department of Environmental Protection, 2575 Interstate Drive, Harrisburg, PA 17110.
2 Department of Biology, Millersville University, Millersville, PA 17551.
J Am Mosq Control Assoc. 2016 Jun;32(2):156-9. doi: 10.2987/moco-32-02-156-159.1.
Culex pipiens and Cx. restuans are the main vectors of West Nile virus and the primary target species of surveillance and control programs in Pennsylvania. Performing adult control, specifically ultra-low volume (ULV) applications, at night during peak oviposition activity time(s) is necessary to control these species. In July and August of 2009, collections were made at 15-min intervals starting at sunset and continuing until 3 h after sunset to establish a more accurate timeline of Cx. pipiens and Cx. restuans oviposition flight activity. The highest numbers of Cx. pipiens and Cx. restuans were collected during the 15-30, 30-45, and 45-60 min postsunset time intervals (P < 0.05). Oviposition activity began to decrease after 60 min postsunset. These observations have identified a smaller oviposition activity period for Cx. pipiens and Cx. restuans than noted from other studies, thus potentially improving the timing of ULV operations to control these 2 vector species.
致倦库蚊和骚扰库蚊是西尼罗河病毒的主要传播媒介，也是宾夕法尼亚州监测和控制项目的主要目标物种。在夜间产卵活动高峰期进行成虫控制，特别是超低容量（ULV）喷洒，对于控制这些物种至关重要。2009年7月和8月，从日落到日落之后3小时，每隔15分钟进行一次采集，以建立更准确的致倦库蚊和骚扰库蚊产卵飞行活动时间表。致倦库蚊和骚扰库蚊数量最多的采集时间是在日落后15 - 30分钟、30 - 45分钟和45 - 60分钟的时间段（P < 0.05）。日落后60分钟后产卵活动开始减少。这些观察结果确定了致倦库蚊和骚扰库蚊的产卵活动期比其他研究中指出的更短，从而有可能改善控制这两种病媒物种的超低容量作业时间安排。
