Michael L. Flessner
YOU?
Author Swipe
View article: Interventions for Weed Seed Management in Cotton Around the Harvest Time
Interventions for Weed Seed Management in Cotton Around the Harvest Time Open
Late-season escapes of Palmer amaranth and waterhemp (collectively referred to as Amaranthus spp.) pose a significant challenge in cotton production due to their high fecundity, herbicide resistance, and ability to replenish the weed seedb…
View article: Field testing of the Redekop seed control unit in soybean and wheat production systems in Virginia
Field testing of the Redekop seed control unit in soybean and wheat production systems in Virginia Open
View article: Correction: Bellangue et al. Site Preparation and Planting Strategies to Improve Native Forb Establishment in Pasturelands. Agronomy 2024, 14, 2676
Correction: Bellangue et al. Site Preparation and Planting Strategies to Improve Native Forb Establishment in Pasturelands. Agronomy 2024, 14, 2676 Open
The authors would like to add an acknowledgment to their paper [...]
View article: Evaluating two impact mills seed kill efficacy and horsepower draw for use in U.S. wheat production
Evaluating two impact mills seed kill efficacy and horsepower draw for use in U.S. wheat production Open
Seed impact mills like the Redekop Seed Control Unit (SCU) and the integrated Harrington Seed Destructor (iHSD) have the potential to fit within the U.S. wheat ( Triticum aestivum L.) production system, but they may be affected by changes …
View article: Impact of cover crops and termination timing on weed management in corn
Impact of cover crops and termination timing on weed management in corn Open
This study evaluated the impact of four cover crop species and their termination timings on cover crop biomass, weed control, and corn yield. A field experiment was arranged in a split-plot design in which cover crop species (wheat, cereal…
View article: Evaluating weed seed kill efficacy and horsepower draw of two impact mills for use in soybean production
Evaluating weed seed kill efficacy and horsepower draw of two impact mills for use in soybean production Open
Combine modifications for harvest weed seed control like the Redekop Seed Control Unit (SCU) and the integrated Harrington Seed Destructor (iHSD) have been successfully used to kill problematic weed seeds in small grain production in Austr…
View article: Herbicide deposition and wash-off potential is affected by cover crop management tactics used in planting green systems
Herbicide deposition and wash-off potential is affected by cover crop management tactics used in planting green systems Open
There is increasing interest in enhancing weed-suppression potential from cover crop surface residues by delaying termination until at or after cash crop planting, often referred to as “planting green.” The combination of increased cover c…
View article: Field Testing of the Redekop Seed Control Unit in Soybean and Wheat Production Systems in Virginia
Field Testing of the Redekop Seed Control Unit in Soybean and Wheat Production Systems in Virginia Open
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: Site Preparation and Planting Strategies to Improve Native Forb Establishment in Pasturelands
Site Preparation and Planting Strategies to Improve Native Forb Establishment in Pasturelands Open
Increasing the diversity of native forbs in pasturelands can benefit insect pollinator populations, which have been declining widely. Establishing native forbs into existing pasturelands can be challenging, however, and information about e…
View article: Soil health indicators for predicting corn nitrogen requirement in long‐term cover cropping
Soil health indicators for predicting corn nitrogen requirement in long‐term cover cropping Open
Efforts to address economic and environmental concerns surrounding nitrogen (N) have motivated attempts to improve estimates of plant‐available N in soil. Several soil health indicators, including CO 2 burst, permanganate oxidizable carbon…
View article: Implementing Digital Multispectral 3D Scanning Technology for Rapid Assessment of Hemp (Cannabis sativa L.) Weed Competitive Traits
Implementing Digital Multispectral 3D Scanning Technology for Rapid Assessment of Hemp (Cannabis sativa L.) Weed Competitive Traits Open
The economic significance of hemp (Cannabis sativa L.) as a source of grain, fiber, and flower is rising steadily. However, due to the lack of registered herbicides effective in hemp cultivation, growers have limited weed management option…
View article: U.S. cereal rye winter cover crop growth database
U.S. cereal rye winter cover crop growth database Open
Winter cover crop performance metrics (i.e., vegetative biomass quantity and quality) affect ecosystem services provisions, but they vary widely due to differences in agronomic practices, soil properties, and climate. Cereal rye (S ecale c…
View article: Early‐season biomass and weather enable robust cereal rye cover crop biomass predictions
Early‐season biomass and weather enable robust cereal rye cover crop biomass predictions Open
Farmers need accurate estimates of winter cover crop biomass to make informed decisions on termination timing or to estimate potential release of nitrogen from cover crop residues to subsequent cash crops. Utilizing data from an extensive …
View article: Cereal rye cover crop termination management for Palmer amaranth (<i>Amaranthus palmeri</i>) suppression in soybean
Cereal rye cover crop termination management for Palmer amaranth (<i>Amaranthus palmeri</i>) suppression in soybean Open
Palmer amaranth is a troublesome weed species displaying the ability to adapt and evolve resistance to multiple herbicide modes of action, and additional weed suppression tactics are needed. Growing interest in the use of cover crops (CCs)…
View article: Supervised and Self-Supervised Computer Vision Approaches for Weed Detection and Yield Prediction in Soybean
Supervised and Self-Supervised Computer Vision Approaches for Weed Detection and Yield Prediction in Soybean Open
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: Volunteer rapeseed infestation and management in corn
Volunteer rapeseed infestation and management in corn Open
The study was conducted to evaluate the effect of different termination timings for rapeseed ( Brassica napus L.) cover crop on biomass production, termination efficiency, and volunteer infestation in the successive cash crop (corn, Zea ma…
View article: Effects of paraquat application at cover crop planting on cover crop biomass and weed suppression
Effects of paraquat application at cover crop planting on cover crop biomass and weed suppression Open
Successful cover crop (CC) establishment in the fall is important to maximize CC production, which is critical for achieving many objectives of CCs. Competition from winter weeds may reduce CC establishment and biomass production. A prepla…
View article: Preferred information and delivery methods for weed management extension in Virginia
Preferred information and delivery methods for weed management extension in Virginia Open
The goal of weed science extension efforts are to encourage and accelerate adoption of diverse, effective, and economical management tactics. To be most successful and efficient, extension personnel need to know how growers prefer to recei…
View article: Cover crop termination options and application of remote sensing for evaluating termination efficiency
Cover crop termination options and application of remote sensing for evaluating termination efficiency Open
Efficient termination of cover crops is an important component of cover crop management. Information on termination efficiency can help in devising management plans but estimating herbicide efficacy is a tedious task and potential remote s…
View article: Quantifying Nutrient and Economic Consequences of Residue Loss from Harvest Weed Seed Control
Quantifying Nutrient and Economic Consequences of Residue Loss from Harvest Weed Seed Control Open
Harvest weed seed control (HWSC) methods destroy, remove, or concentrate weed seeds collected during harvest. Depending on the method of HWSC, chaff and straw fractions may also be destroyed, removed, or concentrated. Observations at soybe…
View article: Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter
Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 3: Drivers of seed shatter Open
Seed retention, and ultimately seed shatter, are extremely important for the efficacy of harvest weed seed control (HWSC) and are likely influenced by various agroecological and environmental factors. Field studies investigated seed-shatte…
View article: Potential wheat yield loss due to weeds in the United States and Canada
Potential wheat yield loss due to weeds in the United States and Canada Open
Yield losses due to weeds are a major threat to wheat production and economic well-being of farmers in the United States and Canada. The objective of this Weed Science Society of America (WSSA) Weed Loss Committee report is to provide esti…
View article: Integrated Weed Management Systems to Control Common Ragweed (Ambrosia artemisiifolia L.) in Soybean
Integrated Weed Management Systems to Control Common Ragweed (Ambrosia artemisiifolia L.) in Soybean Open
As resistance to herbicides limits growers' weed management options, integrated weed management (IWM) systems that combine non-chemical tactics with herbicides are becoming critical. A 2 year integrated weed management (IWM) study was cond…
View article: Cover crops as a weed seed bank management tool: A soil down review
Cover crops as a weed seed bank management tool: A soil down review Open
View article: Palmer amaranth control, fecundity, and seed viability from soybean herbicides applied at first female inflorescence
Palmer amaranth control, fecundity, and seed viability from soybean herbicides applied at first female inflorescence Open
Palmer amaranth is an extremely troublesome weed for soybean growers because of its aggressive growth, adaptability, prolific seed production, and widespread resistance to many herbicides. Studies were initiated to determine the effects of…
View article: Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 1: Broadleaf species
Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 1: Broadleaf species Open
Potential effectiveness of harvest weed seed control (HWSC) systems depends upon seed shatter of the target weed species at crop maturity, enabling its collection and processing at crop harvest. However, seed retention likely is influenced…
View article: Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 2: Grass species
Seed-shattering phenology at soybean harvest of economically important weeds in multiple regions of the United States. Part 2: Grass species Open
Seed shatter is an important weediness trait on which the efficacy of harvest weed seed control (HWSC) depends. The level of seed shatter in a species is likely influenced by agroecological and environmental factors. In 2016 and 2017, we a…
View article: Comparison of 2,4-D, dicamba and halauxifen-methyl alone or in combination with glyphosate for preplant weed control
Comparison of 2,4-D, dicamba and halauxifen-methyl alone or in combination with glyphosate for preplant weed control Open
A field study was conducted in 2017 and 2018 to determine foliar efficacy of halauxifen-methyl, 2,4-D, or dicamba applied alone and in combination with glyphosate at preplant burndown timing. Experiments were conducted near Painter, VA; Ro…