A5053335021- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Insect Pest Control Strategies
- Insect and Pesticide Research
- Entomopathogenic Microorganisms in Pest Control
- Plant and animal studies
- Study of Mite Species
- Plant Virus Research Studies
- Insect symbiosis and bacterial influences
- Insect and Arachnid Ecology and Behavior
- Plant Parasitism and Resistance
- Viral Infectious Diseases and Gene Expression in Insects
- Nematode management and characterization studies
- CRISPR and Genetic Engineering
- Vector-Borne Animal Diseases
- Animal Disease Management and Epidemiology
- Plant Physiology and Cultivation Studies
- Plant-Microbe Interactions and Immunity
- Viral Infections and Vectors
- Physiological and biochemical adaptations
- Environmental DNA in Biodiversity Studies
- Agricultural pest management studies
- Legume Nitrogen Fixing Symbiosis
- Insect Pheromone Research and Control
- Insect behavior and control techniques
Kyungpook National University
2008-2024
The fall armyworm, Spodoptera frugiperda, which is native to Central and South America, has recently invaded Africa Asia, causing serious damage various crops. Although management date been largely unsuccessful, entomopathogenic nematodes (EPNs) are a potential biological control agent that could be used the late larval pupal stages of S. frugiperda dwell under ground. Here, we compared virulence seven EPNs against frugiperda. In Petri dish assay, both Heterorhabditis indica Steinernema...
Thrips are economically important pests, and some species transmit plant viruses that widely distributed can damage vegetables cash crops. Although few studies on thrips have been conducted in Bangladesh, the variation genetic diversity of remain unknown. In this study, we collected samples from 16 geographical locations throughout country determined nucleotide sequences mitochondrial cytochrome c oxidase subunit 1 (mtCOI) gene 207 individuals. Phylogenetic analysis revealed ten genera...
Methyl benzoate (MB) is a small, hydrophobic organic compound isolated from the freshwater fern Salvinia molesta (Salviniales: Salviniaceae). It used as fragrance and flavor enhancer owing to its pleasant smell. has also demonstrated potential green pesticide for various groups of insects. However, effects on mites are yet be studied.Here, we assessed acaricidal repellent MB against two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), under laboratory greenhouse...
The fall armyworm, Spodoptera frugiperda, is an important agricultural pest native to tropical and subtropical regions of the Western Hemisphere, has invaded Africa further spread into most countries Asia within two years. Here, we analyzed genetic variation populations by comparing nucleotide sequences genes: nuclear Z-chromosome linked gene triose phosphate isomerase (Tpi) mitochondrial cytochrome oxidase subunit I (COI) 27 specimens collected in (DR Congo, Tanzania, Uganda, Zimbabwe)...
A Gram-negative, strictly aerobic, rod-shaped bacterium, designated strain BD-c54(T), was isolated from BTEX (benzene, toluene, ethylbenzene and xylenes)-contaminated soil in Sacheon, Korea. Growth of BD-c54(T) observed at 15-35 degrees C (optimum 25-30 C) pH 6.0-9.5 7.0-8.0). The predominant fatty acids were iso-C(15:0), iso-C(17:1)omega9c, iso-C(11:0) 3-OH, iso-C(16:0), iso-C(17:0). contained large amounts phosphatidylethanolamine, phosphatidylglycerol diphosphatidylglycerol a small amount...
The fall armyworm Spodoptera frugiperda (J.E. Smith) is an economically important pest that recently invaded Africa and Asia; however, information regarding its biological capacity to establish itself in newly environments largely unknown. We investigated the effects of temperature on development survival populations S. selected mathematical models evaluate a new environment. exhibited optimum growth at temperatures between 28 °C 30 °C. lower upper thermal thresholds for egg-to-adult life...
The fall armyworm (FAW) Spodoptera frugiperda is an important invasive pest in Africa and Asia. It a polyphagous with at least 353 recorded host plant species, including corn. Chemical control of this unsuccessful because developed resistance harmful effects on the environment. Entomopathogenic fungi are potential biological agents for FAW. In study, native strain Metarhizium rileyi (KNU-Ye-1), collected from cornfield Yeongcheon, Korea, was identified by morphological molecular...
Phosphine (PH3) has been widely used as a fumigant in food storage, but increasing PH3 resistance major pests makes finding alternative fumigants urgent. Methyl benzoate (MBe), volatile organic compound regarded to be food-safe natural product, recently demonstrated significant toxicity against variety of insect pests. This study is the first evaluation fumigation three compounds, MBe, vinyl benzoate, and ethyl PH3-susceptible PH3-resistant strains Rhyzopertha dominica Sitophilus oryzae. All...
Bemisia tabaci is a species complex consisting of various genetically different cryptic worldwide. To understand the genetic characteristics and geographic distribution B. in Asia, we conducted an extensive collection samples ten Asian countries (Bangladesh, Indonesia, Japan, Korea, Myanmar, Nepal, Philippines, Singapore, Taiwan, Vietnam) from 2013 to 2020 determined 56 partial sequences mitochondrial cytochrome oxidase subunit I (COI) DNA. In addition, information on 129 COI identified 16...
Outbreaks of Lymantria dispar asiatica (the Asian spongy moth; Lepidoptera: Erebidae) occur sporadically, causing widespread damage to forest and fruit trees. Owing the development pesticide resistance environmental contamination, biopesticides, including L. multiple nucleopolyhedrovirus (LdMNPV) Bacillus thuringiensis var. kurstaki (Btk), can significantly contribute controlling overall larval stage this species. Although both pathogens are highly effective at stage, their effects on...
In 2016, the fall armyworm (FAW), Spodoptera frugiperda, invaded western Africa and rapidly spread in sub-Saharan Africa, causing significant losses yields of corn, a major food crop Africa. Although Democratic Republic Congo (DRC) is large corn-growing country, impact FAW has not been investigated. This study was designed to expand investigations on genetic diversity populations DRC. We collected individuals from eight provinces across for analysis variation. Based partial sequences both...
Predatory soil-dwelling mites, Gaeolaelaps aculeifer (Canestrini) and Stratiolaelaps scimitus (Womersley) (Mesostigmata: Laelapidae), are essential biocontrol agents of small soil arthropod pests. To understand the population characteristics these two predatory we investigated their development, survival, fecundity under laboratory conditions. We used Tyrophagus putrescentiae (Schrank) as a food source analyzed data using age-stage, two-sex life table. The duration from egg to adult for G....
Summary Dokdo Island has a unique biodiversity that been preserved as natural monument. Although the of investigated, little information is available regarding nematodes. The diversity plant-parasitic nematodes was investigated using both ITS and D2-D3 sequences. Nematodes extracted from 59 rhizosphere soil samples were morphologically identified belonging to eight genera: Geocenamus , Helicotylenchus Rotylenchulus Heterodera Paratylenchus Pratylenchus Pratylenchoides Xiphinema . Further,...
Abstract We developed a simple mass‐rearing technique for soil‐dwelling predatory mite Gaeolaelaps aculeifer . The rearing container consists of two (inner and outer) plastic boxes. inner box contains rice husks, is placed inside the outer which small amount water. This system useful to keep high humidity within prevent mites escaping from box. prey Tyrophagus putrescentiae was also reared in similar way using bran provided G. once week. Rearing condition were maintained at 25 ± 1°C, 95 5%...
Abstract Stilbene‐based fluorescent brighteners (FBs) have been demonstrated to improve the insecticidal activities of entomopathogenic viruses; however, there is limited information regarding their effect on bacteria. We conducted this study investigate two FBs (FB 28 and FB 71) Bacillus thuringiensis var. kurstaki (Btk) Lymantria dispar multiple nuclear polyhedrosis virus (LdMNPV) asiatica . Btk combination at low concentration (1.6 × 10 2 IU/mL) increased mortality, whereas 71...
The invasion of Cydalima perspectalis (Walker, 1859) (Lepidoptera, Crambidae) poses a significant threat to European ecosystems and North American ornamentals. In an effort identify potential biological control agents from the native habitats C. , field survey was conducted 2022 2024 in South Korea. During survey, new braconid agathidine species Braunsia Kriechbaumer, 1894 discovered: hodorii Kang, sp. nov. is delimited described based on morphological, molecular, phylogenetic data....