To address inquiries from the general public and Florida mosquito control programs on the effectiveness of natural products to control resting adult mosquitoes on vegetation, we conducted a study that evaluated the toxicity of several commercially available products containing plant essential oils against female Aedes albopictus (Skuse) and Culex quinquefasciatus Say (Diptera: Culicidae) when applied to the leaves of a common Florida landscape shrub, the southern wax myrtle, Myrica cerifera L. (Myricaceae). The products tested were EcoExempt MC©, Misting System Concentrate©, Mosquito Barrier©, No-See-Um Organic Repellent©, and Orange Guard©. All products were applied at maximum label rates via a hand pump sprayer and compared with a commercial formulation of synergized pyrethrins, Riptide©, as a standard. Excised leaf bioassays revealed that the essential oil formulations provided less than 10% mortality to both mosquito species with essentially no residual activity beyond 24 h. Riptide provided significantly greater mortality, approximately 25% and 41%, at 24 h for Ae. albopictus and Cx. quinquefasciatus, respectively, but this product did not exhibit residual activity beyond 24 h on treated leaves. We conclude that vegetative surfaces treated with the above products containing essential oils would not prove sufficiently effective to control mosquitoes when compared with conventional pyrethroid insecticides labeled for the same purpose.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.