Preplant Incorporated

bensulide (Prefar 4-E)

Celery only

Rate 5 to 6 lb ai/a (5 to 6 quarts/a)

Time Preplant-incorporate to the optimum depth of 1 inch; deeper than 2 inches reduces weed control.

Remarks For furrow irrigation, thoroughly saturate bed top. Sometimes the first flush of weeds must be controlled with cultivation before herbicide begins to control grass. Replant is 120 days for all crops not listed on the label.

Site of action Group 8: lipid synthesis inhibitor but not an ACCase inhibitor

Chemical family Organophosphorus

EPTC (Eptam 7E)

WA only, SLN-160002

Rate 3.1 lb ai/a 7E (3.5 pints/a)

Time Preplant or chemigated.

Remarks Apply preplant to soil dry enough for thorough mixing and incorporate 2 to 3 inches deep with tillage or with irrigation. In semiarid areas of Eastern Washington, application must be made to a dry soil surface (at least 1/2 inch deep) free from dew and incidental moisture and incorporated within 36 hr following application. Earlier incorporation is recommended if soil is moist. Suppression or control of nutsedge, but does not kill tubers. Controls quackgrass.

Caution 120 day PHI. Do not apply more than a total of 7 pints per acre per crop.

Site of action Group 8: lipid synthesis inhibitor but not an ACCase inhibitor

Chemical family Thiocarbamate

trifluralin (Treflan 4L)

Carrots and celery only

Rate 0.5 to 1 lb ai/a (1 to 2 pints/a), depending on soil texture.

Time Apply from 3 weeks to immediately before planting, and incorporate 2 to 3 inches deep within 24 hr by cross-disking or using a power take-off rotary tiller.

Remarks Spray only once and avoid overlaps.

Caution Consult label for restrictions on planting sensitive crops within 12 mo. (Inhibits mitosis, primarily in shoots.)

Site of action Group 3: microtubule assembly inhibitor

Chemical family Dinitroaniline