- Biological Control of Invasive Species
- Hemiptera Insect Studies
- Freshwater macroinvertebrate diversity and ecology
- Insect-Plant Interactions and Control
- Plant Pathogens and Fungal Diseases
- Forest Insect Ecology and Management
- Plant and animal studies
- Insect behavior and control techniques
- Plant tissue culture and regeneration
- Plant Parasitism and Resistance
- Research on scale insects
- Entomopathogenic Microorganisms in Pest Control
- Seed Germination and Physiology
- Plant-Microbe Interactions and Immunity
- Insect symbiosis and bacterial influences
- Mycorrhizal Fungi and Plant Interactions
- Plant Diversity and Evolution
- Cocoa and Sweet Potato Agronomy
- Insect and Arachnid Ecology and Behavior
- Allelopathy and phytotoxic interactions
- Plant and Fungal Species Descriptions
- Chemical synthesis and alkaloids
- Plant and fungal interactions
- Nematode management and characterization studies
- Genetic diversity and population structure
Agropolis International
2004-2025
United States Department of Agriculture
2007-2021
Centre de Biologie et de Gestion des Populations
2007-2020
Agricultural Research Service
2002-2016
California Department of Food and Agriculture
2008
Institut de Recherche pour le Développement
2000-2004
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
1996-2004
Laboratoire Génome et Développement des Plantes
2004
Infection et inflammation
2000
Symrise (Germany)
1996-2000
Trissolcus japonicus (Ashmead) is an Asian egg parasitoid of the brown marmorated stink bug, Halyomorpha halys (Stål). It has been under study in U.S. quarantine facilities since 2007 to evaluate its efficacy as a candidate classical biological control agent and host specificity with regard pentatomid fauna native United States. A survey resident parasitoids conducted 2014 sentinel masses H. revealed that T. was already present wild Beltsville, MD. Seven parasitized were recovered, which six...
The brown marmorated stink bug, Halyomorpha halys (Stål), native to East Asia, emerged as an invasive pest in Europe the 2000s. In its range, Trissolcus japonicus (Ashmead) is dominant egg parasitoid of H. halys, and thus it has been considered for classical biological control countries invaded by pest. A survey parasitoids conducted 2017 2018 with frozen, sentinel masses revealed that T. was already present apple orchards Canton Ticino, Switzerland. recovered both years from three different...
Halyomorphahalys (Stål) is a severe agricultural pest that spreading worldwide from its original distribution in Asia. Egg parasitoids Asia, which play key role the population dynamics of H.halys , are following host along global pathways. We present first records Trissolcusmitsukurii Europe, and Trissolcusjaponicus Italy. Both discoveries were made northern Italy, where widely has reached extremely high densities some areas. Given availability their host, distributions populations these...
Gryon Haliday (Platygastroidea: Scelionidae) is a cosmopolitan genus of egg-parasitoid wasps primarily associated with Heteroptera.Gryon ancinla Kozlov & Lê reported for the first time outside Vietnam, in China and Cambodia, as an egg parasitoid pestiferous leaf-footed bug, Acanthocoris scaber (L.). redescribed based on recently collected specimens compared to closely related species region. clavaerus treated junior synonym some characters found charon group are discussed.
Analysis of a worldwide collection strains Trichoderma asperellum sensu lato using multilocus genealogies four genomic regions (tef1, rpb2, act, ITS1, 2 and 5.8s rRNA), sequence polymorphism-derived (SPD) markers, matrix-assisted laser desorption/ionization-time flight mass spectrometry (MALDI-TOF MS) the proteome classical mycological techniques revealed two morphologically cryptic sister species within T. asperellum, asperelloides sp. nov. third closely related but distinct species....
The establishment of invasive Halyomorpha halys (Stål) outside its native range may impact species assemblages, including other pentatomids and their scelionid parasitoids. This has generated interest in defining diversity host-parasitoid associations this system to better understand the alien on trophic interactions invaded regions. Information scelionid-pentatomid natural habitats is lacking, species-level identification these can be tenuous using rearing dissection techniques. Naturally...
A morphological and molecular analysis of Gryon Haliday (Platygastroidea, Scelionidae) was conducted to provide a taxonomic phylogenetic context for species under evaluation as biological control agent Bagrada hilaris (Burmeister) (Hemiptera, Pentatomidae). Our revealed that is polyphyletic the not G. gonikopalense , name tentatively applied this in 2019. We here describe new, aetherium Talamas sp. nov. resurrect generic Hadronotus Förster. Morphological characters delimit our concepts are...
In classical biological control of weeds, the risk posed by a candidate agent to close relatives target weed in intended area release is key criterion (i.e., agents that demonstrate high degree host specificity). this study, we investigated if rosette crown-feeding fly Botanophila turcica Hennig (Diptera: Anthomyiidae) could meet and thus be considered good saffron thistle Carthamus lanatus L. (Asteraceae: Cardueae) Australia. Previous studies indicated B. specific Ca. did not infest closely...
SUMMARY The beverage cash crop coffee (Coffea arabica L.) is subject to severe losses caused by the rust fungus Hemileia vastatrix. In naturally resistant plants, a specific hypersensitive reaction (HR) may be elicited early stop fungal infection. To isolate host genes involved in HR, we undertook an expressed sequence tags (ESTs) analysis. Two cDNA libraries were constructed using suppression subtractive hybridization (SSH) and 527 non-redundant ESTs generated from 784 randomly picked...
The wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a key pest of in the northern Great Plains North America, and damage resulting from this species has recently expanded southward. Current management practices are inadequate uncertainty regarding geographic origin, as well limited data on population structure dynamics across America impede progress towards more informed management. We examined genetic divergence between samples collected northeastern Asia, assumed...
Trissolcushyalinipennis Rajmohana & Narendran is an Old World egg parasitoid of Bagradahilaris (Burmeister). Its potential as a classical biological control agent in the United States has been under evaluation quarantine facilities since 2014. A survey resident parasitoids using fresh sentinel B.hilaris eggs Riverside, California, revealed that T.hyalinipennis present wild. Four cards with parasitized were recovered, from which one yielded single live and two unidentified dead wasps...
Abstract Advances in phylogeography are of great value for understanding the population structure and origins invasive genotypes. Such insights provide constructive information current or future biological control research efforts. In this study, we investigated a highly variable chloroplast DNA (cpDNA) marker populations weed Lepidium draba (Brassicaceae) its native Eurasian US ranges. We sequenced from 684 individuals Eurasia found 41 different haplotypes. Our comparative study between...
Halyomorpha halys is an invasive, widespread stink bug for which only short-term solutions are currently available pest control worldwide. The need long-term management H. has driven studies on augmentative and classical biological of this species, especially by its egg parasitoids. Numerous investigations in Asia, USA, Europe native exotic parasitoids , the effects non-target pentatomids, have improved global knowledge parasitoid-host relationships, uncovered new associations, led to...
(Stål) (Hemiptera: Pentatomidae) is an invasive alien species and a key agricultural pest. Its native parasitoids (
Local beneficial rhizobacteria were selected based upon their ability to control the fungus Fusarium oxysporum f. sp. radicis-lycopersici which causes crown and root rot of tomato. Seven out 384 strains prevailed in multiple dual cultures identified as Pseudomonas chlororaphis (one strain), Bacillus cereus Serratia marcescens (three strains) rubidaea (two strains), by sequencing 16S rRNA or 23S inter-spacer region. The seven tested for biocontrol growth-promoting effects planta, antifungal...
Silverleaf nightshade ( Solanum elaeagnifolium , Cav.) is one of the important invasive plant species in Mediterranean Basin countries. Over last 60 years, this has gone from a few accidental introductions to near monospecific populations many areas (in particular Greece and Morocco). Recent findings Lebanon show that invasion ongoing. negative impact on crops, causing up 75% yield loss, as well an indirect by harbouring pests diseases. toxic livestock affect quality life for humans. Losses...
Journal Article Mild-Vectolysis: A Nondestructive DNA Extraction Method for Vouchering Sand Flies and Mosquitoes Get access Ioannis A. Giantsis, Giantsis 1 European Biological Control Laboratory, USDA-ARS, Tsimiski 43, 54623 Thessaloniki, Greece ( igiant@afs.edu.gr ; achaskopoulou@ars-ebcl.org ), 2 Perrotis College, American Farm School, Thessaloniki 55102, Greece, Search other works by this author on: Oxford Academic PubMed Google Scholar Alexandra Chaskopoulou, Chaskopoulou 3 Corresponding...