Site Preparation-Grasses

fluazifop (Fusilade DX)

For control of grassy weeds in prairie and riparian conservation and restoration sites west of the Cascade Crest

Rate 0.25 to 0.375 lb ai/a (1 to 1.5 pints/a)

Time Apply to actively growing weeds in the spring or fall that have 2 to 4 leaves and are less than 3 inches tall.

Remarks SLN: OR-120016. Apply with 1% v/v crop oil concentrate or 0.25% v/v nonionic surfactant. Acts very slowly, taking at least 2 weeks and often 4 weeks to show effectiveness. Do not apply to stressed grasses. If weeds regrow repeat application. Best control of perennial grasses can be obtained if rhizomes or stolons are cut up by tillage operations (disking or plowing) to stimulate maximum emergence of grass shoots before applying Fusilade. Target species include reed canarygrass, quackgrass, perennial ryegrass, ripgut brome, red brome, and soft brome.

Caution Do not apply if rain is expected within 1 hour.

Site of action Group 1: acetyl CoA carboxylase (ACCase) inhibitor

Chemical family Aryloxyphenoxy propionate