Effects of Ricinus communis oil esters on salivary glands of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae)

► The ester accelerates de glandular degeneration process. ► The ester causes modifications of glycoprotein components synthesized by the acinar cells, meanly in acini II. ► The ester cause modification of final glandular secretion (saliva).