Just remember… #herdimmunity — Brandon Horvath (@UTTurfPath) November 30, 2017 This tweet started an interesting discussion on twitter today. It centered around herd immunity and turfgrass disease trials and knock out control plots. For those of you who don't know what herd immunity is check out the following tweet. It’s where in a herd of vaccinated animals (like us) the unvaccinated don’t get disease b/c they’re protected by the herd. — Brandon Horvath (@UTTurfPath) November 30, 2017 So essentially Pat might have a clean check plot because all the turf surrounding the plot is treated for disease and this prevents the spread of disease onto the check plot. The discussion then goes on to talk about how there might be better value to have fewer large plots vs many smaller plots to try and account for this apparent phenomenon. Exactly. @luke1utk was @UTturfgrass intern w/Pat this summer and I had him do an independent study on this topic. Jeff, his conclusion was it might be more...