A5083180158- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Insect Pest Control Strategies
- Plant and animal studies
- Insect behavior and control techniques
- Plant Parasitism and Resistance
- Entomopathogenic Microorganisms in Pest Control
- Insect and Arachnid Ecology and Behavior
- Phytoplasmas and Hemiptera pathogens
- Nematode management and characterization studies
- Hymenoptera taxonomy and phylogeny
- Forest Insect Ecology and Management
- Genetically Modified Organisms Research
- Plant Virus Research Studies
- Agricultural pest management studies
- CRISPR and Genetic Engineering
- Research on scale insects
- Genetic diversity and population structure
- Insect symbiosis and bacterial influences
- Plant-Microbe Interactions and Immunity
- Genetic Mapping and Diversity in Plants and Animals
- Genomics and Phylogenetic Studies
- Agricultural Development and Management
- Weed Control and Herbicide Applications
Texas A&M University
2015-2025
Mitchell Institute
2007-2025
Texas A&M University System
2024
The University of Texas System
2022
Arizona State University
2020
United Nations Institute for Disarmament Research
2016
University of California, Riverside
1993-2001
à la diffusion de documents scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement et recherche français étrangers, laboratoires publics privés.
Biopesticides have become a global trend in order to minimize the hazards derived from synthetic chemical pesticides and improve safety, efficacy, environmental friendliness of agricultural pest management. Herein, we report novel biopesticide composite encapsulating azadirachtin with size 260.9 ± 6.8 nm its effects on insect Spodoptera frugiperda (fall armyworm). The nanocomposite was produced via nano emulsification freeze-drying process using whey protein isolate as nanocarrier matrix...
The impact of snowdrop lectin (Galanthus nivalis agglutinin, GNA) expressed in transgenic sugarcane on life history parameters Mexican rice borer [Eoreuma loftini (Dyar)] and [Diatraea saccharalis (F.)] (both Lepidoptera: Pyralidae) was evaluated. In the laboratory, lyophilized leaf sheath tissue incorporated a meridic diet resulting GNA concentration 0.47% total protein, used for insect bioassays over two successive generations. Deleterious effects were not observed survival, weight,...
As a consequence of artificial selection for specific traits, crop plants underwent considerable genotypic and phenotypic changes during the process domestication. These may have led to reduced resistance in cultivated plant due shifts resource allocation from defensive traits increased growth rates yield. Modern maize (Zea mays ssp. mays) was domesticated its ancestor Balsas teosinte (Z. parviglumis) approximately 9000 years ago. Although displays high genetic overlap with direct other...
Two Gram-negative, rod-shaped, non-spore-forming bacteria, MEX20-17T and MEX47-22T, were isolated from the digestive system of Heterorhabditis atacamensis mexicana entomopathogenic nematodes, respectively. Their 16S rRNA gene sequences suggest that strains MEX47-22T belong to γ-Proteobacteria genus Photorhabdus. Deeper analyses using housekeeping-gene-based whole-genome-based phylogenetic reconstruction is closely related Photorhabdus khanii luminescens. Sequence similarity scores confirm...
Abstract Plant anti‐herbivore defenses are known to be affected by life‐history evolution, as well domestication and breeding in the case of crop species. A suite plants from maize genus Z ea ( P oaceae) specialist herbivore D albulus maidis eLong & W olcott) H emiptera: C icadellidae) were used test hypothesis that plant evolution human intervention through for high yield. The included a mays ssp. L .) commercial hybrid, landrace, two populations annual B alsas teosinte . parviglumis I...
Abstract Selection for plant traits important agriculture can come at a high cost to defenses. While selecting increased growth rate and yield, domestication subsequent breeding may lead weakened defenses greater susceptibility of plants herbivores. We tested whether expression defense genes differed among maize, Z ea mays ssp. L . ( P oaceae), its wild relatives parviglumis I ltis & D oebley diploperennis et al. used two populations : one expected express levels an herbivore resistance...
Selecting optimal host plants is critical for herbivorous insects, such as fall armyworm (Spodoptera frugiperda), an important maize pest in the Americas and Africa. Fall larvae are presumed to have limited mobility, hence female moths be largely responsible selecting hosts. We addressed selection by neonate older (3rd-instar) larvae, mediated resistance herbivory plants. Thus, we compared discrimination among three cultivars with varying degrees of armyworm, between subjected or not two...
Natural enemies of herbivores are expected to adapt the defence strategies their preys or hosts. Such adaptations may also include capacity cope with plant metabolites that sequester as a defence. In this study, we evaluated ability Mexican entomopathogenic nematodes (EPN) resist benzoxazinoids sequestered from maize roots by western corn rootworm (WCR, Diabrotica virgifera virgifera; Coleoptera: Chrysomelidae), an important pest in America and Europe. From fields throughout Mexico,...
The fall armyworm (FAW), Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) is an important pest of maize originating from the Americas. It recently invaded Africa and Asia, where it causes severe yield losses to maize. To fight this pest, tremendous quantities synthetic insecticides are being used. As a safe sustainable alternative, we explore possibility control FAW with entomopathogenic nematodes (EPN). We tested in laboratory whether local EPNs, isolated invasive range FAW, as...
Modern agriculture faces the challenge of optimizing fertilization practices while maintaining soil resilience and microbial diversity, both critical for sustainable crop production. We evaluated effects multiple strategies on communities plant performance, comparing conventional methods (urea-based phosphorus fertilizers applied manually or via drone-assisted precision delivery) with biofertilization using a synthetic consortium (SynCom) derived from teosinte-associated microbes. This...
Foliage-feeding fall armyworm (FAW; Spodoptera frugiperda) and root-feeding western corn rootworm (WCR; Diabrotica virgifera virgifera) are maize (Zea mays L.) pests that cause significant yield losses. Jasmonic acid (JA) plays a pivotal defense role against insects. 12-oxo-phytodienoic (12-OPDA) is converted into JA by peroxisome-localized OPDA reductases (OPR). However, little known about the physiological functions of cytoplasmic OPRs. Here, we show disruption ZmOPR2 reduced wound-induced...
Between 1994 and 1995, Cotesia vestalis (Haliday 1834) (Hymenoptera, Braconidae) was introduced from the USA to Mexico set up a biological control program for Plutella xylostella ; nevertheless, its field establishment never confirmed. From 2020 2024, braconid parasitoid on P. larvae collected in broccoli Guanajuato state, main brassicas producer Mexico. Those collections had initially been linked former releases, but this work corroborated that C. has not recovered Guanajuato, rather an...
Abstract The reproductive fitness of parasitoids is dependent on their ability to find optimal hosts for oviposition and nectar/honeydew as a sugar source survival reproduction. Learning ecologically relevant odors helps refine foraging behavior enhance success. However, little known about how associative learning may help optimize flight while food and/or hosts. This study compared the inflight behavioral responses naïve experienced Microplitis croceipes (Cresson) (Hymenoptera: Braconidae)...
<title>Abstract</title> In recent years, the density of <italic>Apis mellifera</italic> L. has declined due to a phenomenon known as Colony Collapse Disorder. The irrational use pesticides is considered one causes. However, primary focus in this area on synthetic insecticides. Hence, research aimed assess toxicity commercial doses <italic>Bacillus thuringiensis</italic> Berliner, nuclear multiple polyhedrosis virus (NPVs), azadirachtin, pyrethrins, and abamectin against <italic>A....
Transgenic Bt maize cultivars are widely used in U.S. agriculture. Control of target pests by these is not complete, and non-target usually tolerant the toxic activity cultivars. Sublethally intoxicated pest individuals may become hosts for parasitoids, but their quality as be affected a result intoxication. This study addresses effects on various fitness parameters parasitoids that develop hosts. The parasitoid this was Parallorhogas pyralophagus (Marsh), gregarious, external idiobiont,...