From labels and weed guides
Best herbicides for pennsylvania smartweed in soybeans
For pennsylvania smartweed in soybeans, the weed guides list 28 active-ingredient groups rated good or excellent, after checking that the products are labeled for soybeans.
Pennsylvania Smartweed control in soybeans
Every listed product is labeled for soybeans. Ratings are shown when each weed guide that rates this weed stays at good or excellent for the active-ingredient group. If a guide gives a range, the weaker end of the range has to be good or excellent.
Based on 1 weed guide, 28 active-ingredient groups are rated good or excellent for pennsylvania smartweed in soybeans, showing the top 12 below.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| 78623 58% Technical Solution EPA 524-532; same active ingredients on 84 other branded products | glyphosate | 9 | Ms Weed Guide 2025, ms soybean post: G (PDF) |
| Actylis Metribuzin EPA 2749-660; same active ingredients on 32 other branded products | metribuzin | 5 | Ms Weed Guide 2025, ms soybean pre: E (PDF); Ms Weed Guide 2025, ms soybean post directed: G (PDF) |
| Actylis Glufosinate 280SL EPA 2749-637; same active ingredients on 31 other branded products | glufosinate | 10 | Ms Weed Guide 2025, ms soybean post: E (PDF) |
| Axill Solutions Flumi 51% WDG EPA 95055-14-93809; same active ingredients on 28 other branded products | flumioxazin | 14 | Ms Weed Guide 2025, ms soybean pre: E (PDF) |
| Agent 1.88 EPA 33270-31; same active ingredients on 16 other branded products | fomesafen | 14 | Ms Weed Guide 2025, ms soybean pre: G (PDF); Ms Weed Guide 2025, ms soybean post: G (PDF) |
| Boundary 6.5EC EPA 100-1162; same active ingredients on 13 other branded products | metolachlor and metribuzin | 5, 15 | Ms Weed Guide 2025, ms soybean pre: E (PDF) |
| Acifin 2L EPA 82534-2-88783; same active ingredients on 9 other branded products | acifluorfen | 14 | Ms Weed Guide 2025, ms soybean post: G (PDF) |
| Authority Elite EPA 279-3442; same active ingredients on 9 other branded products | metolachlor and sulfentrazone | 14, 15 | Ms Weed Guide 2025, ms soybean pre: E (PDF) |
| Basagran EPA 66330-413; same active ingredients on 9 other branded products | bentazon | 6 | Ms Weed Guide 2025, ms soybean post: E (PDF) |
| Antares Prime EPA 82534-10-5905; same active ingredients on 8 other branded products | cloransulam-methyl and sulfentrazone | 2, 14 | Ms Weed Guide 2025, ms soybean pre: E (PDF) |
| Caravel EPA 60063-58; same active ingredients on 7 other branded products | clomazone | 13 | Ms Weed Guide 2025, ms soybean pre: G (PDF) |
| Authority Maxx EPA 279-9560; same active ingredients on 5 other branded products | chlorimuron and sulfentrazone | 2, 14 | Ms Weed Guide 2025, ms soybean pre: E (PDF) |
Rating legend: E=excellent, G=good, F=fair, P=poor, N=no control. 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.
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Sources
Data from current labels and weed guides. Last source update: 2026-07-14.