Selective Herbicide

Asked April 29, 2019, 12:32 PM EDT

I have 21 rows of lavender (Grosso and Hidcote Blue - approx 1,500 plants) with 3' weed barrier installed in the rows The lavender is planted through a 2" hole at the base. In that 2" hole colonial bent grass has emerged vigorously almost to a point where it is as big as the lavender. Is there an herbicide that my be applied to kill the grass but not harm the lavender? Getting the weed eater out is not an option as it would damage the plant. Advice would be greatly appreciated.

Benton County Oregon small farms

1 Response

Clethodim products are effective on grasses. Select Max has a labeled use for herb crops, including lavender. For Colonial bentgrass, a perennial grass, you may need to use the maximum rate. Be sure to read the product label all application and safety instructions.

For more information about weed management and herbicide use please go to the PNW Weed Management Handbook at https://pnwhandbooks.org/weed