As a general rule, replace any divot on the course unless there is a sand or sand/seed mixture provided in a container on the golf car. ... If a sand/bentgrass seed mixture is provided, divots in the rough would not be replaced so as to not contaminate the bluegrass with bentgrass seed.
Are you supposed to replace divots?
Replacing your divot is always the best option for repair, assuming it has some soil attached. If the entire divot explodes into pieces, look around for any other usable divot that can fit in your scar. Take your time fixing or filling divots.
Should I replace my divots when I play golf?
It's better to make the repair level with the soil base. Be courteous and repair divots to the best of your ability while keeping up with the pace of play. Everyone in the game of golf should be aware of replacing divots. Some people take more divots, and some take less.