Garlic, wild (Allium vineale)

2,4-D LV ester

Rate 1 to 2 lb ae/a

Time Early spring, preferably mid-April, before garlic is more than 8 inches tall. Re-spray annually to achieve effective control.

Remarks 2,4-D LV ester is selective in cereals and grasses. It is very important to re-spray annually for several years to effectively reduce the garlic stand. This plant produces small dormant bulbs that germinate over several years.

Caution Avoid drift to sensitive crops.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

aminocyclopyrachlor + chlorsulfuron (Perspective)

Rate 1.2 to 1.8 oz/a aminocyclopyrachlor + 0.5 to 0.7 oz/a chlorsulfuron (3 to 4.5 oz/a of product)

Time Apply to actively growing vegetation.

Remarks Adjuvants can be used, these include methylated seed oils 0.5 to 1% v/v, nonionic surfactants at 0.25 to 1% v/v, and crop oil concentrates at 1%v/v. Can be applied using an invert emulsion rather than water.

Caution Even low rates can kill nontarget tree and shrub species, so avoid application within a distance equal to the tree height of the sensitive species. Do not allow spray to drift off target. Can injure several grass species including bromes and also basin wildrye.

Site of action Group 4 synthetic auxin (aminocyclopyrachlor) Group 2: ALS inhibitor (chlorsulfuron)

Chemical family Phenoxy acetic acid (aminocyclopyrachlor); sulfonylurea (chlorsulfuron)

chlorsulfuron (Telar)

Rate 0.75 oz ai/a (1 oz/a)

Time Apply preemergence or early postemergence in the spring.

Remarks Use a surfactant for postemergence sprays.

Caution Do not let spray drift onto sensitive crops. Labeled for use on pasture, range, Conservation Reserve Program (CRP), and non-crop sites only.

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

Chemical family Sulfonylurea

dicamba (Banvel, Rifle, or Clarity)

Rate 1 to 2 lb ae/a

Time Early spring, preferably March or early April.

Remarks Dicamba at the 1-lb rate usually will not seriously injure seed production of grass or grain crops. The 2-lb treatment gives more complete garlic control.

Caution Dicamba may temporarily sterilize soil west of the Cascades.

Site of action Group 4: synthetic auxin

Chemical family Benzoic acid

metsulfuron (Ally and others)

Rate Ally: 0.3 oz ai/a (0.5 oz/a)

Time Apply to actively growing plants in spring when wild garlic is less than 12 inches tall with 2 to 4 inches of new growth.

Remarks Using a nonionic or silicone surfactant will increase effectiveness.

Caution Consult labels for crops where each product can be used.

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

Chemical family Sulfonylurea

thifensulfuron + tribenuron (Harmony Extra)

Rate 0.38 to 0.45 oz ai/a (0.5 to 0.6 oz/a)

Time When wild garlic is less than 12 inches tall.

Remarks Control is best on actively growing wild garlic plants when air temperature is 60°F or warmer.

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

Chemical family Sulfonylurea