Willow (Salix spp.)

2,4-D LV ester

Rate 2 to 3 lb ae/a

Time Apply when leaves are fully developed and growing.

Remarks Use oil (no lower than No. 2 diesel) for aerial application. Willows will resprout; therefore, re-treatment may be required.

Caution Avoid drift to sensitive crops.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

metsulfuron (Escort)

Rate Escort: 0.6 oz ai/a (1 oz/a)

Time Apply to fully leafed-out brush.

Remarks Full spray coverage is required. Use a surfactant.

Caution Apply only to rangeland and non-crop sites.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Sulfonylurea

triclopyr amine (Garlon 3A) or triclopyr ester (Garlon 4) or triclopyr + 2,4-D LV ester (Crossbow)

Rate Depends on which triclopyr formulation is used

Time Apply when willows are actively growing.

Remarks Foliage must be thoroughly wet.

Caution Garlon products are registered for use on rights-of-way, industrial sites, and forestry (release and site preparation). Crossbow can be used on permanent pastures and rangeland up to 1.5 gal/a. Observe all grazing and harvesting restrictions. Avoid spray drift.

Site of action (all) Group 4: synthetic auxin

Chemical family (triclopyr) pyridine; (2,4-D) phenoxy acetic acid