Tick pheromones that regulate assembly, attraction/aggregation/attachment, and mating behavior have been described. Most of the compounds regulating these behaviors are purines, substituted phenols, or cholesteryl esters. Other pheromonal compounds include organic acids, hematin, or ecdysteroids. Novel devices have been developed that combine the specific compounds comprising these pheromones w...

Experimental amitraz intoxication and its reversal by atipamezole and yohimbine were studied in cats. Twenty four cats were randomly divided equally into 3 groups: Group A (amitraz); Group AY (amitraz/yohimbine) and Group AA (amitraz/atipamezole). Sedation, loss of reflexes, hypothermia, bradycardia, bradyarrhythmia, hypotension, bradypnea, mydriasis, and initial transitory hyperglycemia occurr...

Gualamycin is a water-soluble acaricide isolated from the culture broth of Streptomyces sp. NKl^S?1*. The structure was deduced to be 1 mainly from the spectral and/or X-ray crystallographic analyses of its disaccharide 2 and aglycone portions 32). The absolute structure of the disaccharide, however, remained undetermined. Herein, we confirm the absolute structure 1 by the enantiospeciflc synth...

Amitraz is an insecticide/acaricide of formamidine pesticides used worldwide to control ectoparasites in animals. Amitraz poisoning is a rare disorder characterized by central nervous system (CNS) and respiratory depression, bradycardia, hypotension, hypothermia, hyperglycemia,nausea and vomiting. Poisoning may occur either by oral inhalation and dermal route. In this study, we present seven pe...

Acaricide-inducible differential gene expression was studied in larvae of Rhipicephalus (Boophilus) microplus using a microarray-based approach. The acaricides used were: coumaphos, permethrin, ivermectin, and amitraz. The microarrays contained over 13 000 probes, having been derived from a previously described R. microplus gene index (BmiGI Version 2; Wang et al., 2007). Relative quantitative ...