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The Least Toxic Ways to Protect Yourself from Ticks
When it comes to keeping away creatures that creep and crawl, the U.S. doesn’t mess around. More than 198 million Americans used insect repellent last year, a figure that is expected to top 200 million this year. Much of that is to ward off ticks, which are technically arachnids and carry more than a dozen diseases. But the repellents themselves can present concerns of their own with their pungent smells, occasional irritation, and labels full of mystifying chemicals most people have never heard of. [time-brightcove not-tgx=”true”] With 2023 turning into one of the worst tick seasons in recent memory, pl...
Source: TIME: Health - June 12, 2023 Category: Consumer Health News Authors: Jeffrey Kluger Tags: Uncategorized healthscienceclimate Public Health Source Type: news

In vitro studies of larvicidal effects of some plant extracts against Anopheles gambiae larvae (Diptera: Culicidae)
Larvicidal effects of plant extracts against larvae of Anopheles gambiae were studied in the malaria entomology laboratory at Mendefera. The aim of the study was to evaluate ethanol and hot water extracts from leaves of seven different plants, viz., Azadirachta indica, Eucalyptus globulus, Tagetes minuta, Datura stramonium, Lantana camara, Ricinus communis and Jatropha curcas, as natural lar...
Source: Journal of Medicinal Plants Research - January 24, 2017 Category: Complementary Medicine Source Type: research

Evaluation of Some Plant Essential Oils against the Brown-Banded Cockroach, Supella longipalpa (Blattaria: Ectobiidae): A Mechanical Vector of Human Pathogens.
CONCLUSION: Oregano oil could be used as a potential repellent against S. longipalpa. Also, all five essential oils could be used as the safe compounds for surface treating or fumigation in cockroach control programs while rosmary and oregano oils exhibited the most toxicity. PMID: 28032105 [PubMed]
Source: Iranian Journal of Arthropod-Borne Diseases - December 31, 2016 Category: Infectious Diseases Tags: J Arthropod Borne Dis Source Type: research

Skin artefacts due to post-mortem damage caused by Notiothauma reedi: A insect of forensic importance in forest communities of Chile
This study provides preliminary results on the role of this species in the decomposition of carcasses in native forests and exotic plantations in southern Chile and on the skin lesions that it causes, which should be taken into account when cadavers are found under conditions similar to those described above. In light of these findings, N. reedi could be a new bioindicator of forensic utility in the forest communities of southern Chile.
Source: Egyptian Journal of Forensic Sciences - July 24, 2016 Category: Forensic Medicine Source Type: research

Behavioral Response of Aedes aegypti (Diptera: Culicidae) Larvae to Synthetic and Natural Attractants and Repellents
In this study, we evaluated a few compounds in a sensitive behavioral assay with Ae. aegypti larvae. The orientation of larvae to different compounds was surveyed using a performance index (PI). The PI represents the response to each odorant, where a value of +1 is indicative of full attraction and –1 represents complete repulsion. The widely used insect repellent N, N-diethyl-m-toluamide elicited a significantly negative PI, as did acetophenone and indole. A yeast extract, a known food source, elicited a significantly positive PI, as did 2-methylphenol, 1-octen-3-ol, 3-methylphenol, and fish food. On the other hand,...
Source: Journal of Medical Entomology - November 5, 2015 Category: Biology Authors: Gonzalez, P. V., Gonzalez Audino, P. A., Masuh, H. M. Tags: Vector Control, Pest Management, Resistance, Repellents Source Type: research

Comparative Behavioral Responses of Pyrethroid‐Susceptible and ‐Resistant Aedes aegypti (Diptera: Culicidae) Populations to Citronella and Eucalyptus Oils
Source: Journal of Medical Entomology - November 16, 2014 Category: Biology Authors: Sathantriphop, SunaiyanaThanispong, KanutchareeSanguanpong, UnchaleeAchee, Nicole L.Bangs, Michael J.Chareonviriyaphap, Theeraphap Tags: Behavior, Chemical Ecology Source Type: research

Laboratory and field evaluations of chemical and plant‐derived potential repellents against Culicoides biting midges in northern Spain
Abstract The efficacy of 23 compounds in repelling Culicoides biting midges (Diptera: Ceratopogonidae), particularly Culicoides obsoletus (Meigen) females, was determined by means of a Y‐tube olfactometer. The 10 most effective compounds were further evaluated in landing bioassays. The six most promising compounds (including chemical and plant‐derived repellents) were evaluated at 10% and 25% concentrations in field assays using Centers for Disease Control (CDC) light traps. At least three compounds showed promising results against Culicoides biting midges with the methodologies used. Whereas olfactometer assays indica...
Source: Medical and Veterinary Entomology - June 1, 2014 Category: Veterinary Research Authors: M. GONZÁLEZ, G. J. VENTER, S. LÓPEZ, J. C. ITURRONDOBEITIA, A. GOLDARAZENA Tags: Original Article Source Type: research