---Pre-stress conditioning is a management approach used by many to enhance the ability of turfgrasses to handle stresses when they occur. It is a pro-active management strategy which involves the use of bio-stimulants, foliar nutrition, and, at times, plant growth regulators. These substances have been consistently shown to have a positive influence on the ability of turfgrasses to have nutritional soundness, active and balanced hormone/auxin activities, and increased levels of anti-oxidants. In the Virginia Tech and Purdue studies, all the treatments were applied prior to the core cultivation and none after the fact. Therefore, the positive results that occurred in both locations (quicker core cultivation hole closure and higher quality turf) were the result of the material applications that occurred prior to the core cultivation.