Dhivya, B.Latha, Bhaskaran RaviRaja, Modhugoor DevendiranSreekumar, ChirukandothLeela, V.TANUVAS2019-05-022019-05-022014http://krishikosh.egranth.ac.in/handle/1/5810101712In the current study, an attempt was made to encapsulate assembly pheromone using natural polymer, chitosan. Chitosan beads were prepared by incorporating assembly pheromone in conjunctionwith an acaricide, namely, deltamethrin. In the in vitro bioassay, the test beads attracted and killed 79 %of unfed larvae, 88 %of unfed nymphs and 61 %of unfed adults of the brown dog tick, Rhipicephalus sanguineus, in 24 h of exposure. Field trials were carried out to attract and kill the pre-parasitic environmental stages. The beads were dispersed onto specially designed devices and they were placed in infested kennels. The devices were observed after 10 daysen-USVeterinary ScienceVeterinary ParasitologyArticle