if you are doing a gorlla grow and are scared of budrot you need either serenade or natria. its the same stuff just different names and it works great. it doesnt actually kill budrot but it stop its from spreading. two of my outdoor plants had budrot real bad. i sprayed this all over them without even cutting off the budrot parts. checked back two days later the mold hasnt spread. and in the past where i have been able to just light tug on a moldy part and it would all come undone that doesnt happen anymore. even when i pull on moldy leaves they are still firm now. and broken leaves that were hanging off the plant had no mold on them. just a little gray tint. like the mold had tried to grow but couldnt. but on the ground around the plants the fallen leaves and buds had mold. so yea this stuff works. its expensive so make sure you get the concentrated version. and you really want to start treating BEFORE the budrot sets in.