Sarah Lancaster
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View article: Weed Control and Corn Yield Following Preemergence and Sequential Applications of Mesotrione-based Premixtures
Weed Control and Corn Yield Following Preemergence and Sequential Applications of Mesotrione-based Premixtures Open
All herbicides evaluated provided good control of Palmer amaranth, kochia, and Russian thistle at Garden City and Palmer amaranth and common sunflower at Manhattan early in the season. Control of Russian thistle at Garden City, sunflower a…
View article: Maverick Rates and Application Timings for Weed Control in Kansas Corn
Maverick Rates and Application Timings for Weed Control in Kansas Corn Open
Maverick herbicide was evaluated as a preemergence (PRE) treatment at Manhattan, and as a PRE and postemergence (POST) treatment at Garden City. Early in the season, Maverick applied preemergence (PRE) was as effective as Bicep II Magnum, …
View article: Weather and glufosinate efficacy: a retrospective analysis looking forward to the changing climate
Weather and glufosinate efficacy: a retrospective analysis looking forward to the changing climate Open
Foliar-applied postemergence applications of glufosinate are often applied to glufosinate-resistant crops to provide nonselective weed control without significant crop injury. Rainfall, air temperature, solar radiation, and relative humidi…
View article: Intrava DX Tank Mixtures for Weed Control in Corn
Intrava DX Tank Mixtures for Weed Control in Corn Open
Intrava DX is a new premix herbicide for potential use in fallow and corn. Data from Manhattan showed Intrava DX provided exceptional (≥ 95%) weed control of key weed species when applied preemergence (PRE) to corn. Corn injury was less th…
View article: Optimizing metribuzin rates for herbicide-resistant <i>Amaranthus</i> weed control in soybean
Optimizing metribuzin rates for herbicide-resistant <i>Amaranthus</i> weed control in soybean Open
Palmer amaranth and waterhemp are troublesome weeds in U.S. corn, soybean, and cotton production systems. Rapid evolution of resistance to herbicide from multiple sites of action in these species warrant alternate weed control options. Met…
View article: Evaluating ONE SMART SPRAY for weed control in midwestern U.S. corn and soybean crops
Evaluating ONE SMART SPRAY for weed control in midwestern U.S. corn and soybean crops Open
Targeted sprayers use artificial intelligence to enable on-the-go weed detection and herbicide application, reducing the need to spray entire fields with foliar herbicides. A targeted sprayer was evaluated for treating weeds in corn ( Zea …
View article: Surtain Herbicide Programs for Weed Management in Corn
Surtain Herbicide Programs for Weed Management in Corn Open
All herbicides evaluated provided good control of velvetleaf and Russian thistle at Garden City, and did not differ between treatments. Although slight differences occurred among treatments for kochia control, all herbicides provided at le…
View article: Effect of Corn Row Spacing on Herbicide Effectiveness for Weed Control
Effect of Corn Row Spacing on Herbicide Effectiveness for Weed Control Open
Cultural weed control practices, such as narrow row spacing, can be an essential component of successful weed management. In 2022 and 2023, experiments were conducted in the Kansas River Valley to evaluate the interactions of herbicide pro…
View article: Searching for consistent postemergence weed control in progressively inconsistent weather
Searching for consistent postemergence weed control in progressively inconsistent weather Open
Foliar-applied postemergence herbicides are a critical component of corn ( Zea mays L.) and soybean [ Glycine max (L.) Merr.] weed management programs in North America. Rainfall and air temperature around the time of application may affect…
View article: Planting soybean green: how cereal rye biomass and preemergence herbicides impact <i>Amaranthus</i> spp. management and soybean yield
Planting soybean green: how cereal rye biomass and preemergence herbicides impact <i>Amaranthus</i> spp. management and soybean yield Open
Cereal rye ( Secale cereale L.) cover crop and preemergence herbicides are important components of an integrated weed management program for waterhemp [ Amaranthus tuberculatus (Moq.) Sauer] and Palmer amaranth ( Amaranthus palmeri S. Wats…
View article: The silver bullet that wasn’t: Rapid agronomic weed adaptations to glyphosate in North America
The silver bullet that wasn’t: Rapid agronomic weed adaptations to glyphosate in North America Open
The rapid adoption of glyphosate-resistant crops at the end of the 20th century caused a simplification of weed management that relied heavily on glyphosate for weed control. However, the effectiveness of glyphosate has diminished. A great…
View article: Replacing Fertilizer with Dried Distillers’ Grains in Stocker Cattle Systems on Southern Great Plains Old World Bluestem, USA
Replacing Fertilizer with Dried Distillers’ Grains in Stocker Cattle Systems on Southern Great Plains Old World Bluestem, USA Open
The objective was to examine the effects of dried distillers’ grains supplementation and fertilization strategies on the cattle performance and resource use efficiency of stocker cattle grazing on Plains Old World bluestem. Over 4 consecut…
View article: Impact of cereal rye cover crop on the fate of preemergence herbicides flumioxazin and pyroxasulfone and control of <i>Amaranthus</i> spp. in soybean
Impact of cereal rye cover crop on the fate of preemergence herbicides flumioxazin and pyroxasulfone and control of <i>Amaranthus</i> spp. in soybean Open
Preemergence herbicides associated with cereal rye ( Secale cereale L.) cover crop (hereafter “cereal rye”) can be an effective waterhemp [ Amaranthus tuberculatus (Moq.) Sauer.] and Palmer amaranth ( Amaranthus palmeri S. Watson) manageme…
View article: Modeling Soybean Planting Decisions with Network Diffusion: Does Herbicide Drift Affect Farmer Profitability and Seed Selection?
Modeling Soybean Planting Decisions with Network Diffusion: Does Herbicide Drift Affect Farmer Profitability and Seed Selection? Open
U.S. soybean farmers are currently grappling with dicamba herbicide drift. Using a network diffusion framework that accommodates key features of soybean farmer networks, we estimate the damages incurred from dicamba drift across different …
View article: ImiFlex Evaluation at Two Kansas Locations in Igrowth Grain Sorghum
ImiFlex Evaluation at Two Kansas Locations in Igrowth Grain Sorghum Open
Herbicide-tolerant grain sorghums, such as Igrowth (imidazolinone-resistant) hybrids were recently commercialized in Kansas. Even though the active ingredient of the herbicide associated with these systems, imazamox, is used in other crops…
View article: Effect of Corn Row Spacing on Herbicide Effectiveness for Weed Control in 2022
Effect of Corn Row Spacing on Herbicide Effectiveness for Weed Control in 2022 Open
Cultural weed control practices such as narrow row spacing can be a key component of successful weed management. Experiments were conducted in the Kansas River Valley to evaluate interactions of herbicide programs and corn row spacings on …
View article: Use of open-source object detection algorithms to detect Palmer amaranth (<i>Amaranthus palmeri</i>) in soybean
Use of open-source object detection algorithms to detect Palmer amaranth (<i>Amaranthus palmeri</i>) in soybean Open
Site-specific weed management using open-source object detection algorithms could accurately detect weeds in cropping systems. We investigated the use of object detection algorithms to detect Palmer amaranth ( Amaranthus palmeri S. Watson)…
View article: Teacher Self-Efficacy: The Missing Piece to Trauma-Informed Classroom Interventions
Teacher Self-Efficacy: The Missing Piece to Trauma-Informed Classroom Interventions Open
Once a child enters kindergarten they spend the majority of their waking hours in school. Therefore, school-based interventions that are trauma informed are crucial for promoting social-emotional learning and development. While there are s…
View article: Response of non-dicamba-resistant soybean (<i>Glycine max</i>) varieties to dicamba
Response of non-dicamba-resistant soybean (<i>Glycine max</i>) varieties to dicamba Open
Introduction and rapid adoption of dicamba-resistant (DR) soybean led to an increase of postemergent applications of dicamba. This resulted in a widespread increase in nontarget dicamba injury to non-DR soybean in 2017. Field studies were …
View article: Foxtail Management in Smooth Brome Hay Meadows
Foxtail Management in Smooth Brome Hay Meadows Open
Three different herbicides were applied at early bromegrass greenup and at post hay harvest to assess their effectiveness in controlling foxtail at two producer hay meadow sites in Pottawatomie (PT) and Dickinson (DK) counties. Pendimethal…