A5010295269- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Legume Nitrogen Fixing Symbiosis
- Allelopathy and phytotoxic interactions
- Insect-Plant Interactions and Control
- Agronomic Practices and Intercropping Systems
- Nematode management and characterization studies
- Flowering Plant Growth and Cultivation
- Insect Pest Control Strategies
- Turfgrass Adaptation and Management
- Viral Infectious Diseases and Gene Expression in Insects
- Growth and nutrition in plants
- Genetically Modified Organisms Research
- Wheat and Barley Genetics and Pathology
- Soybean genetics and cultivation
- Animal Genetics and Reproduction
- Plant and fungal interactions
- Plant Virus Research Studies
- Plant and animal studies
- Biological Control of Invasive Species
- Plant Physiology and Cultivation Studies
- Plant Parasitism and Resistance
GreenLight Biosciences (United States)
2020-2024
Triangle
2020-2022
University of Nebraska–Lincoln
2017-2021
Colorado potato beetle (CPB,
The Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) is a destructive pest of the cultivated potato, Solanum tuberosum. Members this species are well-suited to agricultural habitats because suite physiological adaptations and their ability evolve resistance multiple insecticides. Recently, novel double-stranded RNA (dsRNA) insecticide (Calantha, active ingredient ledprona) has been demonstrated as an effective tool manage beetle populations through interference...
Abstract Widespread and repeated use of glyphosate resulted in an increase glyphosate-resistant (GR) weeds. This led to urgent need for diversification weed control programs PRE herbicides with alternative sites action. Field experiments were conducted over a 4-yr period (2015 2018) across three locations Nebraska evaluate the effects PRE-applied on critical time removal (CTWR) GR soybean. The studies laid out split-plot arrangement herbicide regime as main plot timing subplot. regimes used...
The Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) is one of the most notorious pests potato, Solanum tuberosum. Potato beetles are capable developing resistance to various insecticides in relatively few generations. Novel and effective means controlling beetle populations constantly required protect crops prevent loss yield. knockdown gene function through ribonucleic acid interference has been demonstrated beetles, suggesting use this technology as a...
Core Ideas Interference of common ragweed in soybean was driven by competition for light. The leaf area ratio model at R6 growth stage a robust predictor yield loss. Twelve m −1 row length resulted 80‐95% Common is competitive weed fields north central United States and eastern Canada. effect available soil water on the competitiveness hasn’t been determined. A field study conducted 2015 2016 Nebraska to assess interference as affected density. experiment arranged split‐plot design with...
Abstract The evolution of multiple herbicide-resistant weeds, including Palmer amaranth, has necessitated the implementation an integrated weed management (IWM) program. Understanding emergence patterns is critical for developing effective IWM strategies. objective this study was to evaluate effect tillage timings and residual herbicides on cumulative pattern amaranth. Field experiments were conducted in 2015 2016 a field naturally infested with photosystem (PS) II 4-hydroxyphenylpyruvate...
Common ragweed emerges early in the season Nebraska, USA and is competitive with soybean; therefore, preplant herbicides are important for effective control. Glyphosate has been used as a control option; however, confirmation of glyphosate-resistant (GR) common Nebraska necessitates evaluating other herbicide options. The objectives this study were to (1) evaluate efficacy (PP) followed by (fb) glufosinate alone or tank-mixture imazethapyr, acetochlor, S-metolachlor applied post-emergence...
The Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) is an insect defoliator of the potato, Solanum tuberosum L. This species thrives in agricultural environments because its flexible and complex life history, as well ability to evolve insecticide resistance. As a result, it has become widely distributed pest. Ledprona (trade name Calantha) recently developed novel double-stranded RNA (dsRNA) that controls populations beetle through interference (RNAi)....
Spring tillage is a component of an integrated weed management strategy for control early emerging glyphosate-resistant weeds such as common ragweed; however, the effect on ragweed emergence pattern unknown. The objectives this study were to evaluate whether spring during would influence or stimulate additional and characterize in southeast Nebraska. A field experiment was conducted three years (2014 2016) Gage County, Nebraska naturally infested with ragweed. Treatments consisted no-tillage...
Abstract Mixing ammonium sulfate (AMS) can increase dicamba volatility. Therefore, AMS cannot be used with products in dicamba-resistant soybean. However, most applied corn are labeled to mix AMS. The objectives of this study were evaluate broadleaf weed control (DiFlexx®) and dicamba/tembotrione (DiFlexx® DUO) alone or substitute their effect on density biomass. Field experiments conducted Illinois, Missouri, Nebraska 2018 2019. In Illinois Nebraska, mixing + crop oil concentrate (COC) at...
Abstract Understanding the critical time of weed removal (CTWR) is necessary for designing effective management programs in popcorn production that do not result yield reduction. The objective this study was to determine CTWR with and without a premix atrazine S -metolachlor applied PRE. Field experiments were conducted at University Nebraska–Lincoln, South Central Agricultural Laboratory near Clay Center, NE 2017 2018. experiment laid out split-plot design PRE herbicide as main plot timing...
Abstract Velvetleaf is an economically important weed in popcorn production fields Nebraska. Many PRE herbicides have limited residual activity or provide partial velvetleaf control. There are a number of applied POST compared with field corn, necessitating the evaluation for control velvetleaf. The objectives this study were to (1) evaluate efficacy and crop safety labeled controlling that survived S -metolachlor/atrazine (2) determine effect height on herbicide efficacy, injury, yield....
Abstract Glyphosate‐resistant (GR) Palmer amaranth ( Amaranthus palmeri S. Watson) is one of the most difficult to control weeds in soybean [ Glycine max (L.) Merr.] production fields. Residual pre‐emergence (PRE) herbicide applied at planting recommendations for management herbicide‐resistant amaranth; however, information not available about effect residual herbicides on critical time removal (CTPAR) prevent an unacceptable yield loss soybean. The objective this study was determine CTPAR...
Abstract Popcorn ( Zea mays L. var. everta) is difficult to distinguish from field corn indentata) and produced adjacent or in close proximity soybean [ Glycine max (L.) Merr.]. This creates a potential for misapplication drift of herbicides used nearby soybean. Field experiments were conducted near Clay Center, Nebraska 2017 2018 determine the effect glyphosate, 2,4‐D choline/glyphosate (premix), dicamba on growth yield popcorn. Treatments included nontreated control four rates...
Abstract Understanding how plants alter their growth in response to interplant competition is an overlooked but complex problem. Previous studies have characterized the effect of light and water stress on soybean or common ragweed monoculture, no study has mixture. A field was conducted 2015 2016 at University Nebraska-Lincoln characterize with different irrigation levels intraspecific interspecific interference. The experiment arranged a split-plot design level (0, 50%, 100% replacement...
Abstract Popcorn ( Zea mays L. var. everta) is an important crop to Midwestern US producers. While there considerable research on field corn and sweet sensitivity herbicides, a lack of information popcorn herbicides. Field experiments were conducted in 2017 2018 evaluate herbicides labeled for yellow commercially available hybrids weed control response Nebraska. The arranged split‐plot design. main plot treatments consisted two white six hybrids. Ten sub‐plot nontreated control, weed‐free...
Abstract The popcorn industry in the United States is at risk of genetic contamination because it utilizes gametophyte factor 1 gene ( Ga1 ) as a barrier against pollen‐mediated flow (PMGF) from field corn Zea mays L.). Popcorn with Ga1‐s allele accepts pollen only corn, allowing for and to be nearby without isolation. Germplasm being introduced increase diversity that unknowingly contains Ga1‐m allele, which can overcome selectivity pollinate popcorn. has been underassessed. Experiments...