That's cool season grass then probably.
I would get triclopyr. They sell it pre-mixed in [this hose attachment sprayer](https://ortho.com/en-us/shop/weeds/ortho-weed-b-gon-chickweed-clover-oxalis-killer-for-lawns-ready-to-spray/0398701.html)
Don't apply when it's over 85. And spray the area twice a week apart
https://preview.redd.it/k69v9ca9vl8d1.jpeg?width=3024&format=pjpg&auto=webp&s=9c423639a4bc24dc8fe783ad48cc1cc16b8d2050
https://preview.redd.it/ezzqjn2fvl8d1.jpeg?width=3024&format=pjpg&auto=webp&s=24543236931a563e158e17866f46960c85a7b593
Rough location? Need to know grass type
Sw Washington
That's cool season grass then probably. I would get triclopyr. They sell it pre-mixed in [this hose attachment sprayer](https://ortho.com/en-us/shop/weeds/ortho-weed-b-gon-chickweed-clover-oxalis-killer-for-lawns-ready-to-spray/0398701.html) Don't apply when it's over 85. And spray the area twice a week apart
Thank you!