This is the DOW recommendation.
Dow AgroSciences
Home > Weed Brush > Woody Plants / Brush > Eastern Redcedar
Weed Brush
Annuals
Biennials/Perennials
Woody Plants / Brush
Invasive Species
Eastern Redcedar
Cupressaceae family. Perennial tree that can grow up to 65 feet high. Reproduction is through seeds. Flowering occurs from March to May. Consumption of foliage by cattle has been reported to infrequently cause abortions.
Leaves: Opposite, evergreen; leaves on mature twigs closely appressed, overlapping, broadly triangular (about 1.5 millimeters long), tip sharply pointed, thick resinous, without hair, sessile; leaves on immature twigs nearly awl-shaped (6 to 12 millimeters long).
Flowers: Staminate and small pistillate flowers.
Fruit: Pistillate cones bluish-purple, globe- to egg-shaped (4 to 7 millimeters in diameter), covered with a whitish wax, usually two-seeded (varies from one to three).
Treatment
Tordon® 22K herbicide
The most effective option for treating Eastern redcedar is to treat individual trees using a soil-spot concentrate application of undiluted Tordon® 22K herbicide. In accordance with the label, place 4 milliliters (or cc's, using an old syringe) per foot of tree height directly on the soil beneath the plant — between the trunk and the edge of the dripline. If the tree is growing on a slope, place the herbicide on the upslope side. Apply the spots of liquid in a ring around the plant. Treat prior to expected rainfall, especially during the spring or early fall.
Soil-spot Application Rate
Tree Height Amount of Tordon 22K
3 feet 4 mL (cc's)
6 feet 8 mL
9 feet 12 mL
12 feet 16 mL
Other Options
Graslan™ L herbicide
Recommendation:
High-volume Foliar . To control small, encroaching patches of Eastern redcedar or to treat individual plants, use the labeled rate of a 5 pints of Graslan™ L herbicide per 100 gallons of water. For the best control, spray to thoroughly wet the foliage and stems. To minimize spray drift and achieve good coverage, use the lowest possible pressure and coarse spray. Do not apply more than 5 pints of Graslan L per acre.
Treatment Timing
Soil-spot Concentrate method: Apply in the spring or the fall, prior to expected moisture.
High-volume Foliar method: Apply when conditions are favorable for plant growth.
Legal Requirements
®™Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
Tordon 22K and Graslan L are federally Restricted Use Pesticides.