A5044018961- Insect-Plant Interactions and Control
- Hemiptera Insect Studies
- Insect and Pesticide Research
- Insect Resistance and Genetics
- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Plant and animal studies
- Soybean genetics and cultivation
- Weed Control and Herbicide Applications
- Genetically Modified Organisms Research
- Plant Virus Research Studies
- Nematode management and characterization studies
- Isotope Analysis in Ecology
- Pesticide and Herbicide Environmental Studies
- Insects and Parasite Interactions
- Crop Yield and Soil Fertility
- Agronomic Practices and Intercropping Systems
- Insect and Arachnid Ecology and Behavior
- CRISPR and Genetic Engineering
- Allelopathy and phytotoxic interactions
- Forest Insect Ecology and Management
- Potato Plant Research
- Soil and Water Nutrient Dynamics
- Agriculture, Plant Science, Crop Management
- Insect symbiosis and bacterial influences
University of Illinois Urbana-Champaign
2019-2025
University of Arkansas System
2017-2019
Clemson University
2013-2016
University of Arkansas at Monticello
2014-2016
University of Arkansas at Little Rock
2016
Edisto Island Historic Preservation Society
2013
Purdue University West Lafayette
2011
State Street (United States)
2010
Transgenic corn and cotton that produce Cry Vip3Aa toxins derived from Bacillus thuringiensis (Bt) are widely planted in the United States to control lepidopteran pests. The sustainability of these Bt crops is threatened because earworm/bollworm, Helicoverpa zea (Boddie), evolving a resistance toxins. Using sweet as sentinel plant monitor evolution resistance, collaborators established 146 trials twenty-five states five Canadian provinces during 2020–2022. study evaluated overall changes...
Widespread use of genetically engineered maize targeting the corn rootworm complex ( Diabrotica species) has raised concerns about insect resistance. Twelve years university field trial and farm survey data from 10 US Corn Belt states indicate that hybrids expressing toxins derived bacterium Bacillus thuringiensis (Bt maize) exhibited declining protection feeding with increased planting while pest pressures simultaneously decreased. The analysis revealed a tendency to overplant Bt maize,...
ABSTRACT Since its discovery in the United States, invasive plataspid Megacopta cribraria (F.) (Hemiptera: Plataspidae) has infested soybean [Glycine max (L.) Merrill] fields often alarming numbers parts of southeastern States. Although a known feeder on soybean, reports pest status native Asian range are conflicting, and little information exists documenting impact yields. Our objective was to examine relationship between M. density yield loss. adults nymphs were confined small plots by...
Sugarcane aphid, Melanaphis sacchari Zehtner (Hemiptera: Aphididae), outbreaks on grain sorghum were first detected in the United States 2013. The spread of sugarcane aphid across sorghum-producing regions North America necessitated increased insecticide use to mitigate economic loss. A field experiment develop thresholds for was conducted 15 times seven locations southern during 3 yr (2014-2016). Grain hybrids evaluated by measuring yield response a range infestations. Yield-aphid...
The sugarcane aphid ( Melanaphis sacchari ) has become a serious pest causing severe economic losses to sorghum [ Sorghum bicolor (L.) Moench] grown in the southern United States. Since its original detection four states 2013, M. on now, 2016, spread 19 states. presence of one or multiple genotypes States not yet been established. In this study, genome sequencing was used develop microsatellite markers. A total 8,665,267 reads and 1.44 Gb nucleotide sequences were generated, 79.6% from . DNA...
Interest is growing among farmers in the Midwestern US region potential benefits of establishing cereal rye (Secale cereale L.) as a cover crop. However, they are concerned about implications and trade-offs due to this practice. We aimed evaluate effects crop termination at or before soybean planting on (Glycine max [L.] Merr.) seed yield. Field experiments were conducted from 2019 2021 across 28 location-years US. Treatments consisted no rye, planting, planting. Cereal was chemically...
The recently introduced plataspid Megacopta cribraria (F.) can infest fields of soybean (Glycine max (L.) Merrill) in the southeastern United States. Grid sampling four was conducted 2011 and 2012 to study spatial distribution M. adults, nymphs, egg masses. Peak oviposition typically occurred early August, while peak levels adults mid-late September. overall sex ratio slightly biased at 53.1 ± 0.2% (SEM) male. Sweep samples nymphs were toward late instars. All three life stages exhibited a...
Abstract BACKGROUND Two waterhemp ( Amaranthus tuberculatus ) populations from Illinois demonstrating multiple‐resistance to acetolactate synthase (ALS)‐, 4‐hydroxyphenylpyruvate dioxygenase, and photosystem II (PSII)‐inhibiting herbicides (designated CHR SIR) also displayed reduced sensitivity very‐long‐chain fatty acid‐inhibiting herbicides, including S ‐metolachlor. We hypothesized that a physiological mechanism, such as enhanced metabolism, could be responsible for the efficacy of...
Herbicide resistance in weeds can be conferred by target-site and/or non-target-site mechanisms, such as rapid metabolic detoxification. Resistance to the very-long-chain fatty acid-inhibiting herbicide, S-metolachlor, multiple herbicide-resistant populations (CHR and SIR) of waterhemp (Amaranthus tuberculatus) is metabolism compared with sensitive populations. However, enzymatic pathways for S-metolachlor are unknown. Enzyme assays using were developed determine specific activities...
Since outbreaks were first detected in grain sorghum, Sorghum bicolor (L.) Moench (Cyperales: Poaceae), 2013, sugarcane aphid, Melanaphis sacchari Zehntner has become a major annual pest sorghum-producing regions of North America. Economic thresholds have been recommended for susceptible hybrids, but these recommendations may not be suitable sorghum hybrids partially resistant to aphid. The objectives evaluate the yield-aphid density relationship and field-based population growth rates aphid...
The sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), has become a major pest of grain sorghum, Sorghum bicolor (L.) Moench, in the United States recent years. Feeding by large densities aphids causes severe damage, which can lead to total loss yield extreme cases. Our objective was determine effect sorghum planting date on aphid population dynamics and their potential reduce yields. We conducted field experiments from 2015 2017 an aphid-susceptible hybrid planted at...
The sugarcane aphid (Melanaphis sacchari Zehntner) is a significant economic pest of grain sorghum (Sorghum bicolor (L.) Moench) in the Southern United States. Current nominal and research-based thresholds are based on estimates mean aphids per leaf. Because enumerating leaf potentially time consuming, binomial sequential sampling plans for M. were developed that allow users to quickly classify status field populations determine when an threshold has been exceeded. During 2016 2017, counts...
Helicoverpa armigera nucleopolyhedrovirus (HearNPV) is a naturally occurring virus commercially produced for control of Heliothines, including zea. One drawback with using this has been the slower time to mortality compared synthetic insecticides. However, new formulation (Heligen®) anecdotally thought result in quicker than previously observed. The objective study was evaluate percent defoliation, efficacy HearNPV on each H. zea larval instar, and potential second infestation. Fourteen days...
The success of the current resistance management plan for transgenic maize, Zea mays L. (Poaceae), targeting rootworm complex hinges upon high rates mating between resistant and susceptible beetles. However, differences in fitness adult beetles could result assortative mating, which could, turn, change rate evolution. Adult head capsule widths naturally occurring populations western corn rootworm, Diabrotica virgifera LeConte (Coleoptera: Chrysomelidae), were examined a variety refuge...
The kudzu bug, Megacopta cribraria (F.), first discovered in the United States 2009, has rapidly become a pest of commercial soybean, Glycine max (L.) Merrill, throughout much southeast. Because its recent arrival, management practices and recommendations are not well established. To develop action thresholds, we evaluated insecticide applications targeted at different densities adults nymphs determined using standard 38-cm diameter sweep net sampling method 12 soybean field trials conducted...
Since its discovery in the southeastern United States, invasive plataspid Megacopta cribraria (F.) (Hemiptera: Plataspidae) has infested soybean (Glycine max (L.) Merrill) fields often very high numbers. To optimize sampling plans, sweep-net and beat-cloth was conducted South Carolina during 2012 2013. Across all fields, densities averaged 7.2 ± 0.5 (SEM) adults 4.5 0.4 nymphs per 20 sweeps 5.5 0.3 1.83 m of row. Coefficients Taylor's power law were used to generate plans for population...
Journal Article Residual Efficacy of Insecticides Applied to Exterior Building Material Surfaces for Control Nuisance Infestations Megacopta cribraria (Hemiptera: Plataspidae) Get access Nicholas J. Seiter, Seiter 3 1130 McGinty Court, Box 340310, Clemson, SC 29634–0310.2Edisto Research and Education Center, 64 Rd., Blackville, 29817. 3Corresponding author, e-mail: nseiter@g.clemson.edu. Search other works by this author on: Oxford Academic PubMed Google Scholar Eric P. Benson, Benson...
The invasive kudzu bug, Megacopta cribraria (F.) (Hemiptera: Plataspidae), has become an economic pest of soybean, Glycine max (L.) Merrill, in the southeastern United States since its initial discovery Georgia. Information on management practices, including insecticides, is limited due to uncertain status native range and recent introduction States. We evaluated efficacy controlling M. benefits a variety insecticides labeled for use soybean from different chemical classes field trials South...
Since its unintentional introduction during 2009, Megacopta cribraria (F.) has spread rapidly throughout the southeastern United States, mainly feeding and reproducing on kudzu, Pueraria montana Loureiro (Merr.) variety lobata (Willdenow), soybeans, Glycine max (L.) Merr. become a serious economic pest in forcing growers to rely solely insecticide applications control this insect. The main objective of study was investigate if variation planting date maturity group soybeans had an impact...
Honey bees, Apis mellifera (Linnaeus) are crucial pollinators, however large overwinter losses of managed hives and declines in feral colonies have occurred since 2006. Increased insecticide use the introduction new classes been proposed as factors contributing to these declines. Previous studies demonstrated contact toxicity single active ingredient insecticides honey bees. However, field realistic formulated (pre-mix) mixtures containing multiple ingredients (each with a different mode...
Potato leafhopper (PLH), Empoasca fabae Harris (Hemiptera: Cicadellidae), is an economic pest of a variety crops that migrates between overwintering sites in the southern United States and northern breeding grounds. Since 2005, Midwest Suction Trap Network (STN) has monitored magnitude timing aerially dispersing aphids' activity, but potential network to monitor other taxa only beginning be explored. Here, we use STN examine how PLH activity vary with weather, cropland cover, time year. We...
Horizontal transmission of Helicoverpa armigera nucleopolyhedrovirus (HearNPV) has been found to occur through several pathways involving abiotic factors such as soil, wind, and rain, biotic predators, parasitoids, infected hosts. Previous studies examining horizontal certain biological carriers speculated they were likely not significant in increasing infection rates, however; these only focused on a relatively small number arthropods present within field setting. This study was conducted...