Brome, false (Brachypodium sylvaticum)

fluazifop (Fusilade)

Rate 2 to 4 oz ai/a (8 to 16 fl oz/a)

Time Apply in spring to control seedlings, and treat established plants through summer until fall.

Remarks Two to three years of treatment will be necessary to achieve control. Fine leaf fescues are tolerant to fluazifop. Native broadleaves should not be injured by fluazifop.

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

Chemical family Cyclohexanedione

glyphosate

Rate Broadcast: 2.25 to 3.7 lb ae/a; spot treatment: 1.5% solution

Time Apply to green leaves in midsummer to autumn.

Remarks Adequate foliar coverage of false-brome is necessary, and repeat applications may be required to achieve full control. Add nonionic surfactant if not included in the formulation. Late summer treatments after native plants are dormant are preferred to minimize injury.

Caution Glyphosate is nonselective and injures or kills other vegetation in the treated area.

Site of action Group 9: inhibits EPSP synthase

Chemical family None generally accepted

hexazinone (Velpar)

Rate Broadcast: 2 lb ai/a (1 gal/a)

Time Apply preemergence in the spring.

Remarks Hexazinone is normally used in sequence with glyphosate applied in late summer (see above). Early spring hexazinone application controls newly germinating seedlings.

Caution Hexazinone is a restricted-use herbicide. Do not contaminate water.

Site of action Group 5: photosystem II inhibitor

Chemical family Triazinone

sethoxydim (Poast)

Rate 3 to 4.5 oz ai/a (1 to 1.5 pints/a)

Time Apply in spring to control seedlings, and treat established plants through summer until fall.

Remarks Two to three years of treatment will be necessary to achieve control. Fine leaf fescues are tolerant to sethoxydim. Native broadleaves should not be injured by sethoxydim.

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

Chemical family Aryloxyphenoxy propionate