From labels and weed guides

Best herbicides for quackgrass in cereal rye

For quackgrass in cereal rye, the weed guides list 1 active-ingredient group with every rating at least 80% control, after checking that the products are labeled for cereal rye.

Quackgrass control in cereal rye

Every listed product is labeled for cereal rye. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.

Based on 1 weed guide, 1 active-ingredient group is rated at least 80% control for quackgrass in cereal rye.

Example productActive ingredientsMOA groupRatings checked
Imitator + 2,4-D
EPA 19713-635; same active ingredients on 2 other branded products
2,4-d and glyphosate4, 9ND Weed Guide 2026: E → 90–99% control (PDF)

Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. A range such as G-E means the guide gives a range; 'a' after a rating (e.g., Ga) means the guide assumes its recommended additive. Read the rating method.

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Sources

Data from current labels and weed guides. Last source update: 2026-09-30.