2022 Reports
View the entire 2022 Weed Control Report (pdf)
Cropping Systems
- Response of Italian ryegrass to crop rotation and indaziflam in Eastern Washington (pdf)
- Smooth Scouringrush control with Finesse® three years after application in winter wheat/spring wheat/no-till fallow cropping systems (pdf)
Winter Wheat
- Evaluation of Maestro EXT for the control of mayweed chamomile in winter wheat (pdf)
- Evaluation of orthosulfamuron + pyraflufen-ethyl for volunteer canola management (pdf)
- Evaluation of Peak® with tank mix partners for the control of mayweed chamomile in winter wheat (pdf)
- Zidua® for downy brome control in winter wheat (pdf)
- Winter wheat yield following rush skeletonweed control with Tordon® 22K in no-till fallow (pdf)
- Winter wheat yield following Treflan® applied the previous year in spring canola for Italian ryegrass control (pdf)
- Assessing the risk of Kerb® SC herbicide carryover to winter wheat following use in spring canola (pdf)
Spring Wheat
Chickpeas
- Birdsrape mustard and mayweed chamomile control in chickpeas with herbicides (pdf)
- Goal® and Kerb® in chickpea (pdf)
Spring Canola
Kentucky Bluegrass
Chemical Fallow
- Evaluation of BAS 85101H in tank mix combination with glyphosate for Russian-thistle control in chemical fallow (pdf)
- Effect of surfactants on the efficacy of RT® 3 for control of smooth scouringrush (pdf)
- Long-term control of smooth scouringrush control with RT 3® and Finesse® one year after application – Reardan, WA (pdf)
- Long-term control of smooth scouringrush control with RT 3® and Finesse® in wheat/fallow cropping systems two years after treatment at Dayton and Steptoe, WA (pdf)
2021 Reports
Winter Wheat
- Evaluation of Avadex® Microactiv™ herbicide for the control of Italian ryegrass (pdf)
- Preemergence and Postemergence Herbicides for Control of Italian ryegrass (Lolium multiflorum) in Winter Wheat (pdf)
- Evaluation of Peak® with tank mix partners for the control of mayweed chamomile in winter wheat (pdf)
- Long-term control of smooth scouringrush with Finesse® in a no-till winter wheat/fallow rotation – final evaluation (pdf)
- Smooth scouringrush control with Finesse® in winter wheat/spring wheat/no-till fallow rotations – continued (pdf)
Spring Wheat
- Evaluation of Axial® Bold plus Talinor™ in tank mix combinations with nitrogen sources for crop safety, common lambsquarters and mayweed chamomile control in spring wheat (pdf)
- Evaluation of Axial® Bold plus Huskie® in tank mix combinations for common lambsquarters and mayweed chamomile control in spring wheat (pdf)
- Evaluation of a new formulation of Batalium™ herbicide for crop safety and the control of mayweed chamomile in spring wheat (pdf)
- Italian ryegrass seed shatter in spring wheat (pdf)
Chemical Fallow
- Postharvest control of Russian-thistle with herbicides (pdf)
- Comparison of RT® 3 and surfactants for control of smooth scouringrush – one year after treatment (pdf)
- Comparison of RT® 3 and surfactants for control of smooth scouringrush during a drought year – 2021 (pdf)
- Efficacy of Silwet® L77 organosilicone surfactant with RT® 3 glyphosate applied in no-till fallow for control of smooth scouringrush – 2 years after treatment (pdf)
- Long-term control of smooth scouringrush control with RT 3® and Finesse® in wheat/fallow cropping systems (pdf)
- Long-term control of smooth scouringrush control with RT 3® and Finesse® applied in wheat_fallow cropping systems – replicated in 2021 (pdf)
- Rush skeletonweed control with Tordon 22K in no-till fallow is affected by application method, herbicide rate, and field conditions (pdf)
Winter Peas
Spring Canola
Weed Seed Bank Management
Precipitation Data
View the entire 2021 WSU Weed Control Report (pdf).