The following parameters should be defined, as determined in the preliminary tests:
1. Treatment period.
Treatment should preferably be carried out at outdoor temperatures >5 °C.
2. Number of treatments, if more than one treatment is carried out.
3. Treatment intervals, if more than one treatment is carried out.
4. Include an untreated control group in the study to establish the effect of handling and of natural variations on the level of infestation and thus to confirm that a decrease in mite population size observed is indeed due the product under investigation.