Where Satchur 8 Fits in Your Herbicide Program
Three benefits and two practical checks from the Purdue trials
The 2026 Purdue results give growers a clear reason to consider Satchur 8 in selected herbicide programs. Adding Satchur 8 improved weed control on several key weeds, with the strongest gains on amaranth. The opportunity is to match Satchur 8 to the herbicide and weeds where the data show the most promise.
Amaranth and waterhemp: Waterhemp (Amaranthus tuberculatus) is an amaranth species in the pigweed group. The trial uses the general label "amaranth" without identifying the species.
1 Stronger amaranth performance
With S-metolachlor, adding Satchur 8 increased amaranth control from 63.8% to 81.3% at 48 days after application. This was its largest improvement over the herbicide-only treatment in the final evaluation.
Why it matters: This is one of the clearest combinations to consider when evaluating Satchur 8 for an amaranth-focused program.
2 Improved broadleaf performance
With mesotrione, Satchur 8 increased amaranth control from 77.5% to 92.3%. Lambsquarters control also improved, from 91.0% to 99.0%.
Why it matters: The benefit extended to two broadleaf weeds in this combination. Consider that opportunity alongside your grass-control needs.
3 A consistent response with sulfentrazone
Satchur 8 matched or exceeded sulfentrazone-only control on all four weeds at all three evaluation dates. At 48 days, redroot pigweed control increased from 97.0% to 99.0%, large crabgrass from 68.8% to 72.0%, and velvetleaf from 88.8% to 93.3%. Lambsquarters held at 99.0% control.
Why it matters: The gains were modest, but the direction of response was consistent across the weeds and dates in this trial.
Two practical checks for a better fit
1 Do not assume broadleaf gains carry over to grasses
With mesotrione, barnyardgrass control fell from 71.8% without an adjuvant to 35.0% with Satchur 8, even as amaranth and lambsquarters control improved.
Put it into practice: If barnyardgrass is a target, review the full program with your agronomist before selecting this combination.
2 Do not add Satchur 8 to every herbicide automatically
With metribuzin, crabgrass control decreased from 71.5% to 61.3%, and velvetleaf from 87.5% to 71.3%. With pyroxasulfone, large crabgrass control decreased from 90.8% to 90.0%, lambsquarters from 83.0% to 78.8%, and velvetleaf from 73.3% to 70.0%.
Put it into practice: Focus adoption on combinations with supporting results, then compare performance in your own field.
The Purdue results support taking a closer look at Satchur 8 where the herbicide and target weeds align. Talk with your Planet Earth Agronomy agronomist about adding Satchur 8 to a well-matched program and evaluating it alongside your current approach.
Review the full public workbook, including the 48-day summary and all reported weed-control ratings.
Trial context: Comparisons are against the same herbicide without an adjuvant. Control percentages cited are at 48 days after application; the sulfentrazone consistency finding covers 21, 35 and 48 days. Results apply to the formulations tested. Amaranth species and resistance status were not identified.
Waterhemp reference: Purdue Extension, Biology and Management of Waterhemp (GWC-13)
Percent improvement at a glance
The chart below lists every herbicide-and-weed combination with higher control from Satchur 8 at the 48-day evaluation, ranked by relative improvement. Each percentage uses the herbicide-only result as its baseline. For example, an increase from 63.8% to 81.3% control represents a 27.4% relative improvement.
Calculation: (control with Satchur 8 − control without adjuvant) ÷ control without adjuvant × 100. Percent improvements are rounded to one decimal. These 10 positive results are part of 20 final comparisons: 8 were lower and 2 were unchanged. Statistical significance was not supplied. Use the complete results and the selection checks above to match Satchur 8 to your herbicide and target weeds.
