Helped you to translate it to english...

The Strawberry is a Perennial plant, which means that throughout its productive cycle it will be constantly renewing tissues; therefore, as long as you keep the crop, you should be checking it for pruning or cleaning. In this regard, the criteria that you can take are the same as when doing sanitary pruning of any crop:

Twigs and leaves that you see dry or in poor condition will be removed; This happens because they are tissues that have already fulfilled their function in the plant and are now being discarded by the plant to form new tissues. The plant can do this process alone without your intervention, so why do it?

Because if you do, you accelerate the process, therefore the plant will renew its tissues much faster and will not continue to use nutrients and water to maintain these tissues that are already withering. This will not only produce more flowering, but it will also leave more nutrients available for the new fruits to be formed and those that are already forming.