Monday, September 20, 2021

Armyworms

If it isn’t one thing, it’s another. August was wet. Being August, it was also warm or hot most of the time. This is prime weather for disease. As it turns out, it is also prime weather for an insect pest that we have never had before.

We work diligently to stay on top of disease outbreaks by knowing the conditions each fungus needs for growth. We protect large amounts of turf across the property, including the soccer fields. We also treat the soccer field for insects; however, the pressure this year overtook our preventive application and wiped out 40% of the soccer field turf.

Damage on the soccer field. This photo was taken
the day we re-seeded.

Fall armyworms are a southern insect most of the time. They feed on nearly all kinds of crops, turfgrass included. Occasionally, they can migrate northward and be seen, but not cause any extensive damage. Well, not this year. Not only did they come north, but they wreaked havoc. Here is just a sampling of the information describing this season’s infestation:

                USA Today- https://www.usatoday.com/story/news/nation/2021/09/01/fall-armyworm-outbreak-damages-lawns-across-us/5683595001/

                Business Insider- https://www.businessinsider.com/army-worms-how-to-prevent-armyworms-treatment-lawn-grass-infestation-2021-8

                NBC4 Washington- https://www.nbcwashington.com/news/local/armyworms-invade-dc-area-lawns-kill-grass/2795853/

For us, recovery was to re-seed the field and start fresh. It necessitated keeping the field closed longer than our originally scheduled maintenance window, but we are making progress.

While we may not see another infestation quite like this for some time, we are adjusting our maintenance program just in case.

 

Etiquette Reminder of the Month

Please do not apply any spray sunscreen or insect repellent while standing on the grass, especially the greens.

Also, as part of a Golf Committee initiative to improve course etiquette, we have included links to videos teaching proper on course etiquette. Please take a moment to watch:

Ball Marks - How to properly repair

 


See you on the course!

Joe

jvillegas@bwrc.org

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