Locomotor activity diminishes after mite infestation. A) Locomotor activity during the first 9 days post infestation (acute infestation). B) Total locomotor activity during acute and chronic (last 9 days) infestation. Locomotor activity was recorded as the number of times a line within the grid was crossed. The acute infestation data was obtained from the total data from the first 9 days of the acute infestation. Mean ± SE are shown (*P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001).