Creeping bentgrass is considered a weed on athletic fields and lawns. It produces a superb playing surface for golf and it has great recuperative potential, but it’s shallow roots and lack of wear tolerance make it unsuitable for most athletic sports.

Tenacity (mesotrione) is the first herbicide that results in rapid, easy to visualize reductions in weedy perennial grasses, including creeping bentgrass.  Best control, according to most research of creeping bentgrass, is achieved if three applications are made on 14-21 day intervals.

Stressful turfgrass conditions lead to numerous maladies, many of which are sent to plant disease clinics to be identified.  One diagnosis that causes confusion is the presence of ectotrophic root-infecting (ERI) fungi.  These fungi are often associated with root rotting diseases that produce patch-like symptoms. 

Whether you like it or not, spring highlights the amazing ability of Poa annua to produce seed.  The ability to produce copious seed is an evasive characteristic of Poa annua's evolution of different survival strategies (Cline et al., 1993).   I think one of the most amazing characteristics of Poa annua, and also a detriment from a golfing perspective is the flowering ability of Poa annua under low mowing heights. 

Crabgrass (Digitaria spp) is a major problem in both cool-season and warm-season turfgrasses As a general rule, crabgrass tends to be more of a problem in temperate climates and less of a problem in tropical regions. In temperate regions the most important and likely the first weed control practice of the year is the proper timing of a pre-emergent herbicide application for crabgrass.

Diseases caused by Drechslera spp. were formerly classified as Helminthosporium leaf, crown, and root diseases. The fungus attacks cool season turfgrasses during the cool wet weather of spring and fall.