Coring

5 examples of Goodhart's law in turfgrass management

When a measure becomes a target, it ceases to be a good measure. That’s a generalization of Goodhart’s law. I’m an advocate of measuring some surface performance, plant, and soil parameters.

Hollow-tine cultivation and solid-tine spiking both failed to alleviate summer bentgrass decline

A late July solid-tine spiking treatment of a creeping bentgrass green in Hokkaido, Japan How’s this for a lede? “Hollow-tine coring and solid-tine spiking practices may not alleviate creeping bentgrass summer decline.

Core aerating putting greens, or not

There was an article on the Golf Course Industry website about a course that hasn’t core aerified putting greens since the course opened 12 years ago. It’s a short article—466 words.

Cleaning cores the easy way

On a recent trip to Japan, I’d wanted to get a new video of a core sweeper in operation. Unfortunately for me, but fortunately for the greenkeeper, who had a laugh about this, the sweepers clean the greens so fast that by the time I arrived there were no more cores to sweep.