Raspberries cleaned from grass

Young raspberries quickly overgrow with grass. We have to cut the grass. By mid-July, this is the third time that all the grass between the raspberries has been torn out. After the grass is destroyed, the raspberries can be watered. It takes about 4 hours to clear 150 raspberry bushes from grass. Grass is pulled out by hand. The tool is not being used. Raspberry bushes are planted next to each other. The tool can damage the raspberries. Therefore, only manual labor.