New Attractant Lures for Sampling L. Populations: Bisexual Lures and a Sex Attractant (Lepidoptera: Noctuidae).

The chemical ecology and host plant preferences of the different Conistra species (Lepidoptera: Noctuidae, Xylenini) are mostly unknown, even though they are essential components of the herbivorous assemblages of temperate zone forests. During field studies, (Z)-7-tetradecenyl acetate (Z7-14Ac) was identified as a sex attractant of . Phenylacetaldehyde-based synthetic and iso-amyl alcohol-based semi-synthetic lures also attracted , , and , and in the case of , they performed better than the newly identified sex attractant.

First Report of a Migratory Pest, the Fall Armyworm, (JE Smith, 1797) (Lepidoptera, Noctuidae) from Bulgaria.

The first occurrence of an invasive pest species, the fall armyworm ( Lepidoptera: Noctuidae), in Bulgaria is reported. Different trapping methods (black light trap, traps baited with semiochemical lures, and food attractants) were used to study Noctuidae assemblages in Bulgaria in 2023. Two males of were caught with sex pheromone traps in maize fields in Knezha, northern Bulgaria, in early November 2023.

Identification of Female Sex Pheromone of a Plant Bug, Reuter (Hemiptera: Miridae).

Insect sex pheromones have been widely used in integrated pest control due to their efficiency, non-toxicity, specificity, and environmental sustainability. They are considered a key component of green pest management techniques. is a phytophagous plant bug on alfalfa ( L.

Transcriptome Analysis Reveals the Role of in Rice Defense Against .

Carbohydrate-binding malectin/malectin-like domain-containing proteins (CBMs) represent a newly discovered subclass of lectins that participate in various biological processes across the bacterial, animal, and plant kingdoms. The gene in rice enhances reactive oxygen species (ROS) burst, contributing to drought-stress tolerance. Nonetheless, the functions of in response to biotic stress remain poorly understood.

Synthesis, antibacterial evaluation and preliminary mechanism study of novel isoquinoline-3-carboxylic acid derivatives containing an acylhydrazone disulfone moiety.

Background: Limitations in the use and availability of copper-based fungicides and antibiotics has led to a scarcity of bactericidal agents. It is urgent to develop green bactericides with new modes-of-action and effective chemotypes.

Results: A bioactive substructure splicing approach was applied to optimize the structure of the natural product isoquinolin-3-carboxylic acid (IQ3CA).

Insights into the improved cold-water solubility and digestibility of alkaline-alcohol modified cassava starch: A discussion from the perspective of fine structure.

Multi-objective optimization of starch for higher solubility and lower glycemic index is a challenge. In this study, we investigated the molecular structure evolution of cold water-soluble starch (CWS) and its correlation mechanism with solubility and digestibility by alkali-alcohol treatment of cassava starch. As NaOH concentration increased, the average molecular size of CWS gradually decreased, and the medium-long amylose (AM) chains (X ~ 1000-10,000) decreased sharply.

Metabolic profiling and evaluation of antioxidant and anti-inflammatory properties of Apis cerana cerana Honey from Sansha City, Hainan Province, China.

Honey has been recognized for its role in disease prevention through nutritional modulation. In this study, we comprehensively assessed the physicochemical parameters, metabolic profile, antioxidant and anti-inflammatory activities of multifloral honeys produced by Apis cerana cerana in Sansha City (SS), Hainan Province. Metabolomic analysis identified SS honey had multiple bioactive compounds known for antioxidant and anti-inflammatory properties.

Cathepsin F alters viral acquisition, retention, and transmission of TYLCV and ToCV by Bemisia tabaci MED.

Tomato yellow leaf curl virus (TYLCV) and Tomato chlorosis virus (ToCV) are plant-infecting viruses that are mainly transmitted by Bemisia tabaci Gennadius. In addition to their significant individual impacts on agricultural production, TYLCV and ToCV co-infections are increasingly common and can cause devastating losses in tomato and other crops. Cathepsins, the main proteases in lysosomes, affect both immune responses and the digestion of plant proteins and may help mediate Bemisia-virus-plant interactions.

Potential influence of supplemental nutrients intake by adults on the development, fecundity, and population growth of Megalurothrips usitatus (Thysanoptera: Thripidae) offspring.

Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae), is an important pest in cowpea-growing areas of south China. To study control strategies, M. usitatus has been raised for multiple generations in the laboratory.

Isoflavones extracted from Millettia pachyloba prevent the infection of the rice blast fungus by inhibiting its conidial germination and appressorium formation.

Background: The ascomycete Magnaporthe oryzae is a destructive phytopathogenic fungus that causes rice blast disease and can greatly reduce rice yields. Due to the widespread use of synthesized chemical fungicides and the frequent occurrence of fungicide resistance and environmental pollution as a result, it has become increasingly urgent to develop environmentally friendly biocontrol alternatives, including plant crude extracts.

Results: In this study, the crude extracts of the tropical plant Millettia pachyloba were screened out and exhibited excellent preventive effects against M.

Interspecific Competition Between Riley and Hirst (Acari: Tetranychidae).

has long been recognized as an important spider mite pest of rubber trees. Recently, increasing damage from has elevated its importance as a key spider mite pest. These two species share highly overlapping ecological niches, with outbreaks strongly associated with high temperatures and drought stresses.

Nontarget Catches of Green and Brown Lacewings (Insecta: Neuroptera: Chrysopidae, Hemerobiidae) Collected by Light- and Volatile-Baited Traps in the Transcarpathian Lowland (W Ukraine).

Distribution data on the lacewing fauna of the data-deficient Transcarpathian Lowland (West Ukraine) were provided. The attractivity of phenylacetaldehyde-(FLO) and isoamyl alcohol-based (SBL) lures designed for trapping lepidopteran pests to lacewings was also studied and compared to the efficiency of light traps traditionally used in studies on neuropterans. In the three-year study, 374 individuals of 10 species were caught.

Assessment of Different Conventional and Biofortified Wheat Genotypes Based on Biology and Damage Pattern of and .

The lesser grain borer, (F.) (Coleoptera: Bostrichidae) and khapra beetle, E. (Coleoptera: Dermestidae) are primary stored-grain insect pests.

Harnessing Genetic Resistance in Maize and Integrated Rust Management Strategies to Combat Southern Corn Rust.

Southern corn rust (SCR) caused by Underw. has recently emerged as a focal point of study because of its extensive distribution, significant damage, and high prevalence in maize growing areas such as the United States, Canada, and China. is an obligate biotrophic fungal pathogen that cannot be cultured in vitro or genetically modified, thus complicating the study of the molecular bases of its pathogenicity.

First report of Haemaphysalis bispinosa, molecular-geographic relationships of Ixodes granulatus and a new Dermacentor species from Vietnam.

Background: Vietnam and its region are regarded as an ixodid tick biodiversity hotspot for at least two genera: Haemaphysalis and Dermacentor. To contribute to our knowledge on the tick fauna of this country, ticks from these two genera as well as an Ixodes species were analyzed morphologically and their molecular-phylogenetic relationships were examined in taxonomic and geographical contexts.

Methods: For this study, seven Haemaphysalis sp.

Radio-tracking urban breeding birds: The importance of native vegetation.

As urban areas continue to expand globally, a deeper understanding of the functioning of urban green spaces is crucial for maintaining habitats that effectively support wildlife within our cities. Cities typically harbor a wide variety of nonnative vegetation, providing limited support for insect populations. The resulting scarcity of arthropods has been increasingly linked to adverse effects at higher trophic levels, such as the reduced reproductive success of insectivorous birds in urban environments.

Characterization of the ligand-binding properties of odorant-binding protein 38 from when interacting with soybean volatiles.

Background: (Fabricius) (Hemiptera: Alydidae) is a major soybean pest throughout East Asia that relies on its advanced olfactory system for the perception of plant-derived volatile compounds and aggregation pheromones for conspecific and host plant localization. Odorant binding proteins (OBPs) facilitate the transport of odorant compounds across the sensillum lymph within the insect olfactory system, enabling their interaction with odorant receptors (ORs).

Methods: Real-time quantitative PCR (qRT-PCR) analyses, fluorescence-based competitive binding assays, and molecular docking analyses were applied to assess the expression and ligand-binding properties of OBP38 from .

Coumarin derivatives containing the 1,3,4 oxadiazole/thiadiazole moiety discovered as potential anti-tobacco mosaic virus agents.

In this paper, a series of oxadiazole/thidiazole containing coumarin derivative derivatives were designed, synthesized and characterized using NMR and HRMS. The evaluation of antiviral activity revealed that some of the synthesized compounds exhibited good in vivo antiviral efficacy against tobacco mosaic virus (TMV). Notably, compounds H6 and Y5 demonstrated exceptional therapeutic and protective effects against TMV, with EC values of 180.

Aggressiveness of f. sp. Isolates at High Temperatures: A Study Case in Core Oversummering Area of Gansu as Inoculum Source.

Wheat stripe rust, caused by a biotrophic, obligate fungus f. sp. (), is a destructive wheat fungal disease that exists worldwide and caused huge yield reductions during pandemic years.

Bioassay-Guided Isolation and Identification of Antibacterial Compounds from Invasive Tree of Heaven Stem and Trunk Bark.

Flash column chromatographic fractionation of tree of heaven () stem and trunk bark extracts, guided by thin-layer chromatography (TLC)- assay and TLC-heated electrospray high-resolution tandem mass spectrometry (HESI-HRMS/MS), lead to the isolation of six known compounds: (9,11)-13-hydroxy-9,11-octadecadienoic acid (13-HODE, ), (10,12)-9-hydroxy-10,12-octadecadienoic acid (9-HODE, ), hexadecanedioic acid (thapsic acid, ), 16-hydroxyhexadecanoic acid (juniperic acid, ), 16-feruloyloxypalmitic acid (alpinagalanate, ), and canthin-6-one (). Their structures were elucidated by HESI-HRMS/MS and one- and two-dimensional nuclear magnetic resonance (NMR) spectroscopy. This is the first study identifying - in tree.

Prediction of the Future Evolution Trends of in China Based on the Key Climate Factors Using MaxEnt Modeling.

Mountain apricot () is an important fruit tree variety, and has a wide range of planting and application value in China and even the world. However, the current research on the suitable distribution area of is still inconclusive. In this study, we retrieved distribution data for in China from the Global Biodiversity Information Facility (GBIF), and identified six key environmental factors influencing its distribution through cluster analysis.

sp. nov., a Al-tolerant bacterium with the ability to inhibit f. sp. isolated from rhizosphere soil of muskmelon.

A bacterial strain, designated as A6, was isolated from the rhizosphere soil of a healthy muskmelon in Wenchang, Hainan Province, China. The cells of strain A6 were Gram-negative, aerobic, short rod and motile with a single polar flagellum. Strain A6 could tolerate up to 55.

An antennal-specific OBP mediates bait odorant perception in fire ants.

Odorant binding proteins (OBPs) play a key role in the crosstalk between the external environment and dendritic neuron activation. Ham sausage is an efficient bait widely used for monitoring the invasive ant Solenopsis invicta in the field, whereas the chemoreceptors involved in bait odorant perception in S. invicta have not been functionally characterized.

Design, Synthesis, and Bioactivity of Novel Coumarin-3-carboxylic Acid Derivatives Containing a Thioether Quinoline Moiety.

A series of coumarin-3-carboxylic acid derivatives containing a thioether quinoline moiety were designed and synthesized. The structures of these compounds were determined using H NMR, C NMR, and HRMS. The antibacterial activity of the compounds was evaluated against pv (), (), and ().