You should remove brown balls in the garden as quickly as possible. In autumn, the female ticks look for a suitable spot and lay around 2,000 eggs there.
The pile of small pellets lies there over the winter until spring until the tiny larvae hatch. Since these develop into disease-carrying bloodsuckers that you don't want in your garden, you should keep your eyes open for the nests. You can find even more exciting garden topics in the regular newsletter from our partner 24garten.de.