Wiktionary
acarology
n. The study of ticks and mites.
Wikipedia
Acarology
Acarology (from Greek /, , a type of mite; and , -logia) is the study of mites and ticks, the animals in the order Acarina. It is a subfield of arachnology, a sub-discipline of the field of zoology. A zoologist specializing in acarology is called an acarologist.