The Tick Repellent Spray by Neudorff 489, 100 ml seems to hold the grass mites. Two days after a visit to the cemetery I was regularly plagued by many long-lasting strong itching stitch points. For mites should be responsible. After spraying of ankle under long trousers I have therefore no more problems.
However, the smell of geraniums is unpleasant and long lasting. Allergy sufferers should try the product carefully. The deterrent effect of the tick repellent sprays like it because mites do not like the scent of geraniums (also).