Janet from Marietta writes
Poa Annua (annual bluegrass) emergence most rapidly occurred when soil temperatures fall below 70°F with ample soil moisture (rainfall). Negate 37WG works best when applied when weeds are actively growing and temperatures are between 65 and 85 degrees outside.To get an accurate soil temperature reading, you can use a soil thermometer to take daily soil temperature readings. Another resource for homewowners is your local Master Gardener with the Cooperative Extension Office, they are with the University System and can advise on the best timing to treat Poa Annua in your countuy. Please view our How to Treat for Poa Annua Guide for more information.
Answer last updated on: 02/19/2021
