Knowledgebase
Distress turf grass #458848
Asked June 01, 2018, 9:25 PM EDT
Neighbor A exhibited likeness to picture last season, amended the soil and re-seeded this year where spots of distressed grass are coming back.
Neighbor B (pictured) is now exhibiting same issue except much more severe.
Are animals causing this? Is it fertilizer application issue? What is visual telling? Appreciate your insight and for courtesies extended.
Denver County Colorado
Expert Response
It is difficult to fully diagnose based on pictures. It is possible that you are dealing with asocochyta leaf blight. We see this when cool weather is followed by hot summer conditions.Here is a fact sheet that outlines what to look for and how to treat it:
http://extension.colostate.edu/topic-areas/yard-garden/ascochyta-leaf-blight-of-turf-2-901/
Please read the following blogs on the topic as well to see if they match your symptoms.
http://csuhort.blogspot.com/2016/07/turf-rant-believe-me-it-is-irrigation.html
http://csuhort.blogspot.com/2016/06/its-ascochyta-time.html
http://csuhort.blogspot.com/2013/06/is-that-your-ascochyta-or-mine.html
If you have any questions or would like to talk about this further, feel free to call meat the Denver Extension office : <personal data hidden> o