A study in Tennessee found ticks on about one in six cattle and at livestock monitoring locations in all regions of the state, highlighting a "hidden health threat" to the cattle industry.
Experiments conducted at the U.S. Centers for Disease Control and Prevention showed clothing treated with permethrin had strong toxic effects on three primary germ-carrying tick species, interfering with the ticks' ability to move properly and likely interfering with their ability to bite.
One key factor plays a role in how well any particular tick-management method might work: Which tick species is it best suited for? A new guide in the Journal of Integrated Pest Management reviews research on tick management tools and their effectiveness on three tick species: the blacklegged tick, the lone star tick, and the American dog tick.
A study of lone star ticks in the forested Missouri Ozarks found that nymphs and adults were more abundant in valleys and on north-facing hills than in other areas. Meanwhile, nymphs appeared less often in the areas of greater temperature variability, while adults were less prevalent with increased elevation.
A new study in the Journal of Medical Entomology offers the best look yet at the Haller's organ, a small sensory pit on the forelegs of ticks that they use to detect heat and chemical odors emitted by potential hosts.