A5021052521- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Hemiptera Insect Studies
- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Soybean genetics and cultivation
- Genetically Modified Organisms Research
- Plant and animal studies
- Plant Virus Research Studies
- Weed Control and Herbicide Applications
- Research in Cotton Cultivation
- Insect behavior and control techniques
- Agricultural pest management studies
- Insect and Arachnid Ecology and Behavior
- Forest Insect Ecology and Management
- Agronomic Practices and Intercropping Systems
- CRISPR and Genetic Engineering
- Isotope Analysis in Ecology
- Growth and nutrition in plants
- Insects and Parasite Interactions
- Seed Germination and Physiology
- Legume Nitrogen Fixing Symbiosis
- Turfgrass Adaptation and Management
- Wheat and Barley Genetics and Pathology
Mississippi State University
2015-2024
University of Tennessee at Knoxville
2020-2023
Texas A&M University
2020-2023
Louisiana State University Agricultural Center
2020-2023
Mississippi Delta Community College
2020-2023
Southern Research Station
2023
Louisiana State University
2023
Syngenta (United States)
2022
University of Arkansas at Monticello
2020
University of Arkansas at Fayetteville
2020
Studies were conducted across the southern United States to characterize efficacy of multiple Bacillus thuringiensis (Bt) events in a field corn, Zea mays L., hybrid for control common lepidopteran and coleopteran pests. Cry1F protein event TC1507 Cry1A.105 + Cry2Ab2 proteins MON 89034 evaluated against pests infesting corn on above-ground plant tissue including foliage, stalks, ears. Cry34Ab1/Cry35Ab1 DAS-59122-7 Cry3Bb1 88017 larvae Mexican rootworm, Diabrotica virgifera zeae Krysan Smith,...
Overwintering success is an important determinant of arthropod populations that must be considered as climate change continues to influence the spatiotemporal population dynamics agricultural pests. Using a long-term monitoring database and biologically relevant overwintering zones, we modeled annual seasonal common pest, Helicoverpa zea (Boddie), based on three suitability zones throughout North America using four decades soil temperatures: southern range (able persist through winter),...
Sweet corn, Zea mays L., is attacked by a variety of insect pests that can cause severe losses to the producer. Current control practices are largely limited application broad-spectrum insecticides have substantial and deleterious impact on natural enemy complex. Predators been shown provide partial sweet corn when not killed insecticides. New products specifically target pest species, while being relatively benign other insects, could more integrated control. In field trials we found...
Abstract The influence of post‐treatment temperature on the toxicities two pyrethroids (lambda‐cyhalothrin and bifenthrin), a carbamate (methomyl) spinosyn (spinosad) to Ostrinia nubilalis (Hübner) larvae was evaluated in laboratory assays. From 24 35 °C, decreased 9.5‐ 13.6‐fold while spinosad toxicity 3.8‐fold. methomyl did not change significantly. results demonstrate that most effective insecticide against pest may vary with environmental conditions. In situations where comparable...
To develop an insecticide resistance management program for onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), on onions (Allium spp.), we surveyed populations in commercial fields New York and evaluated their susceptibility to the two most widely used classes of insecticides plus new during 2003–2005. All evaluations were conducted using Insecticide Bioassay System (TIBS). As our surveys 2002–2003, there large temporal spatial variations pyrethroid λ-cyhalothrin (Warrior)...
Corn earworm, Helicoverpa zea (Boddie), commonly infests field corn, Zea mays (L.). The combination of corn plant biology, earworm behavior in ecosystems, and value renders management with foliar insecticides noneconomical. technologies containing Bacillus thuringiensis (Bt) Berliner (Bacillales: Bacillaceae) were introduced that exhibit substantial efficacy against may reduce mycotoxin contamination grain. first generation Bt traits demonstrated limited activity on feeding pyramided have...
Experiments were conducted in Mississippi from 2013 to 2015 determine the systemic and residual efficacy of chlorantraniliprole flubendiamide against corn earworm, Helicoverpa zea (Boddie), soybean. Both insecticides applied at V4 R3. Ten leaves that present time application 10 newly emerged not collected measure efficacy, respectively. pods removed each plot R5.5. For all assays, earworm larvae placed on plant material. Chlorantraniliprole appeared provide control H. zea, but was dependent...
As fluctuating commodity prices change the agriculture landscape on a yearly basis, soybean (Glycine max (L.) Merr.) has become predominant crop in southern USA, accounting for 65 percent of total row production state. To accommodate increased production, planting dates have expanded, spanning from late March through July. determine impact this expanded window development and yield, field experiments were conducted at Starkville Stoneville, MS, 2013 2014. Treatments included seven ranging 25...
Generalist predators are common in most agricultural cropping systems. However, pest control from these is often overlooked as a component of integrated management (IPM) because the extent predation generally unknown and difficult to assess. In western New York sweet corn (Zea mays L.), primary Orius insidiosus (Say), Coleomegilla maculata (DeGeer), Harmonia axyridis (Pallas). European borer [Ostrinia nubilalis (Hübner)] insect pest. The objectives this study were compare O. egg rates for...
Sweet corn, Zea mays L., is attacked by a variety of insect pests that can cause severe losses to the producer. Current control practices are largely limited application broad-spectrum insecticides have substantial and deleterious impact on natural enemy complex. Predators been shown provide partial sweet corn when not killed insecticides. New products specifically target pest species, while being relatively benign other insects, could more integrated control. In field trials we found...
To develop an insecticide resistance management program for onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), on onions (Allium spp.), we surveyed populations in commercial fields New York and evaluated their susceptibility to the two most widely used classes of insecticides plus new during 2003–2005. All evaluations were conducted using Insecticide Bioassay System (TIBS). As our surveys 2002–2003, there large temporal spatial variations pyrethroid λ-cyhalothrin (Warrior)...
The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), has become the primary target of foliar insecticides in cotton, Gossypium hirsutum L., throughout Midsouth over past several years. This prompted a reevaluation existing action thresholds for flowering cotton under current production practices and economics. A trial was conducted at 19 locations during 2006 2007. Threshold treatments ranged from weekly automatic insecticide application to very high...
The corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), is only moderately susceptible to most toxins from the bacterium Bacillus thuringiensis (Bt) expressed in transgenic corn. To better understand impact of Bt on life cycle H. zea, we collected pupae during 2014–2016 North Carolina, South and Mississippi hybrids expressing Cry1Ab, Cry1F, Cry1F + Cry1Ab Vip3Aa20, Cry1A.105 Cry2Ab2, Cry2Ab2 as well non-Bt near-isolines. We investigated effect pupal weight, fecundity, egg...
In New York, the primary coccinellid in corn and sweet (Zea mays, L.) has historically been Coleomegilla maculata (DeGeer). However, Harmonia axyridis (Pallas) also observed last few years. The objectives of this study were to document level establishment both species understand their interactions. temporal within-plant distributions all coccinellids recorded for 3 yr. results indicated that H. C. only abundant corn, with adults larvae having distinct distributions. found earlier season...
A complex of hemipterans, especially the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), has become a major target insecticides in flowering cotton, Gossypium hirsutum L., mid-southern United States. Sampling protocols for this during period cotton development are poorly established, resulting uncertainty about when infestations warrant treatment. Nine direct and indirect sampling methods were evaluated bias, precision, efficiency throughout Mid-South 2005...
Twelve field experiments and one laboratory experiment were conducted to determine the effects of furrow applied aldicarb seed treatments thiamethoxam, imidacloprid, Avicta (thiamethoxam + abamectin), Aeris (imidacloprid thiodicarb), acephate on twospotted spider mite, Tetranychus urticae Koch, cotton, Gossypium hirsutum L. For experiments, data pooled across all for analysis. Aeris, imidacloprid resulted in mite densities greater than those untreated check, aldicarb, treatments. However,...
Early-season insect management is complex in the Mid-South region of United States. A multiple pest species generally occurs simultaneously at subthreshold levels most fields. Neonicotinoids are only insecticide seed treatment widely used soybean, Glycine max L., production. An analysis was performed on 170 trials conducted Arkansas, Louisiana, Mississippi, and Tennessee from 2005 to 2014 determine impact neonicotinoid treatments soybean. The compared soybean treated with a fungicide same...
Natural predation is an important component of integrated pest management that often overlooked because it difficult to quantify and perceived be unreliable. To begin incorporating natural into sweet corn, Zea mays L., management, a predator survey was conducted then three sampling methods were compared for their ability accurately monitor the most abundant predators. A on corn foliage in New York between 1999 2001 identified 13 species. Orius insidiosus (Say), Coleomegilla maculata (De...
A complex of hemipterans, especially the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), has become a major target insecticides in flowering cotton, Gossypium hirsutum L., mid-southern United States. Sampling protocols for this during period cotton development are poorly established, resulting uncertainty about when infestations warrant treatment. Nine direct and indirect sampling methods were evaluated bias, precision, efficiency throughout Mid-South 2005...
Corn earworm, Helicoverpa zea (Boddie), is a significant pest of agroecosystems in the midsouthern and southeastern regions United States. These insects have developed resistance to, or inconsistent control has occurred with, most insecticide classes. With their unique mode action, insecticides diamide class become key component management agriculturally important lepidopteran pests. In this study, field populations H. were collected southern States compared to susceptible laboratory...
Abstract BACKGROUND Economically damaging infestations of the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), have become more frequent in Virginia and North Carolina cotton since 2013 2010, respectively. Foliar insecticide use has increased dramatically response. Efficacy data (LC 50 ) are needed to evaluate L. susceptibility resistance levels (RR commonly used recommended insecticides for managing this pest southeastern USA. RESULTS Elevated acephate bifenthrin were measured...
As growers switch to transgenic crops and selective insecticides that are less toxic natural enemies, enemies can become more important in agricultural pest management. Current decision-making guides generally based on abundance do not address enemy toxicity differences among or the impact of survival. A refined approach making management decisions is include insecticides, thereby better integrating biological chemical control. The result this integration a dynamic threshold varies for each...
Insecticide applications to control tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), during cotton, Gossypium hirsutum L., bud formation are common throughout the Midsouth of United States. Cultivation practices and pest complex have changed since action thresholds were established for this pest. A trial was conducted at 33 locations over 3 yr evaluate bug damage cotton prebloom period. There no consistent yield response thresholds, but average density square...