Cholinesterase Inhibition in Spider Mites Susceptible and Resistant to Organophosphate

Science  10 Jan 1964:
Vol. 143, Issue 3602, pp. 129-131
DOI: 10.1126/science.143.3602.129


Evidence is provided that organophosphate resistance in a strain of spider mites is due to decreased sensitivity of its cholinesterase to organophosphates. The cholinesterase activity of the susceptible strain in vitro was three times that of the resistant strain of mites.