Bibbs Christopher S, Anderson Codi, Xue Rui-De
Anastasia Mosquito Control District, 120 EOC Drive, St. Augustine, FL 32092.
J Am Mosq Control Assoc. 2016 Sep;32(3):247-250. doi: 10.2987/15-6532.1.
Recent autodissemination studies have popularly favored pyriproxyfen, but methoprene is already established and widely used in control programs. This study demonstrated that methoprene could also autodisseminate through contaminated gravid females. Arenas of oviposition cups were arranged around methoprene-contaminated bait stations. Gravid female Aedes albopictus were released to allow oviposition. All cups were then removed and tested in an insect growth regulator bioassay. Liquid formulations did not result in adequate autodissemination among treatment groups. Granular formulations pulverized into a fine powder resulted in successful autodissemination. Emergence inhibition was recorded as high as 85% in individual assays. Pooled inhibition across the granular trials was 56.7%. Methoprene has benefits similar to pyriproxyfen use and has the added advantage of already being established and readily available in existing mosquito control programs throughout the USA. Methoprene is a good candidate for continued investigation of autodissemination.
近期的自传播研究普遍青睐吡丙醚，但甲氧普烯已被确立并广泛应用于防控项目中。本研究表明，甲氧普烯也可通过受污染的妊娠雌蚊进行自传播。在甲氧普烯污染的诱饵站周围设置了产卵杯区域。释放妊娠白纹伊蚊雌蚊以使其产卵。然后将所有杯子取出，并在昆虫生长调节剂生物测定中进行测试。液体制剂在各处理组之间未实现充分的自传播。粉碎成细粉的颗粒制剂实现了成功的自传播。在个别试验中，羽化抑制率高达85%。颗粒试验的合并抑制率为56.7%。甲氧普烯具有与使用吡丙醚类似的益处，并且具有已被确立且在美国现有的蚊虫控制项目中易于获取的额外优势。甲氧普烯是继续进行自传播研究的良好候选对象。
