Entomology Commons^™

Effect Of Environmental Conditions On German Cockroach (Blattella Germanica) Behavior And Survival, Allison Lopina

Theses and Dissertations--Entomology

German cockroaches (Blattella germanica L.) remain one of the most challenging indoor pests to manage, due to resistance to many commonly used insecticides, and necessary contact/interaction with common management tactics. As such, it is critical to fully understand their aggregation, movement, and longevity, such that treatments can be optimally placed to result in maximal efficacy. The first part of this study explored the effects of multiple factors (harborage width, harborage materials, heat, resource-harborage distance) on initial site selection, and how environmental modifications and infestation density impact harborage site switching. The second half of the study aimed to explore the …

Limitations Of Reproductive Manipulation By Bacterial Endosymbionts In A Spider Host, Jordyn D. Proctor

Theses and Dissertations--Entomology

Maternally inherited bacterial endosymbionts are common in arthropods. Many of these bacteria manipulate host reproduction to favor the production of infected females, thereby increasing bacterial prevalence in the host population, even if cost is incurred to the host. However, there are also many factors that may inhibit symbionts’ ability to spread in host populations, including environmental constraints, symbiont-imposed costs on the host, interactions with co-infecting bacteria, or host biology. I explored two aspects of symbiont biology within a spider host, Mermessus fradeorum (Linyphiidae), which has varying combinations of up to five different bacterial endosymbionts in local populations: Rickettsiella, Tisiphia …

Impacts Of Livestock Dewormers On Dung Beetle Foraging Choices Across Spatial Scales, Madison L. Kluge

Theses and Dissertations--Entomology

Dung beetles provide ecosystem services in pasture systems but are vulnerable to chemical residues in livestock dung. Parasiticides containing macrocyclic lactones (MLs) are used to control parasites in livestock and are excreted unmetabolized in dung, exposing non-target organisms to these compounds. We used a multi-scale approach to examine whether ML residues alter dung beetle foraging ecology. At the field scale, we assessed dung beetle abundance and community composition using traps baited with dung from untreated cattle and cattle treated with ivermectin, moxidectin, or eprinomectin across eight farms and natural areas. At a smaller scale, we conducted behavioral assays to quantify …

Coexistence Between Ci And Feminization Inducing Symbionts: A Theoretical Perspective, Dylan Thorp

University of Kentucky Master's Theses

Endosymbiotic bacteria that manipulate the reproduction of their host are abundant in arthropods. Theoretical efforts to model these bacteria have seldom included symbionts that feminize their hosts, and those that do have assumed an environmental sex determination system. Here, I expand upon other theoretical works to model the dynamics of a host population with an XX/X0 sex determination system that contains separate CI and feminization inducing symbionts. I found that coexistence cannot occur without double infection, consistent with previous models. However, I also found that without double infection, the presence of the feminizing symbiont can facilitate the spread of the …

Seasonal Population Dynamics And Interspecific Interactions Of Drosophila Suzukii, Eleanor Mccabe

Theses and Dissertations--Entomology

Invasive species are a growing problem, and it is important to investigate how invasives interact with novel ecosystems, which are characterized by distinct abiotic and biotic factors. In this dissertation, I investigate abiotic and biotic factors affecting two invasive pests in central Kentucky, Drosophila suzukii and Zaprionus indianus. In Kentucky, seasonality, and landscape features on population dynamics and fitness are unknown. I found that D. suzukii overwinters in Kentucky and that wild berry species improve winter survival. I used local weather data to identify meteorological variables that best predict D. suzukii populations. I tested the extent to which D. suzukii …

County-Level Surveillance For The American Dog Tick (Dermacentor Variabilis) And Rickettsia Species In Kentucky, Callista W. Vandegriff, Jun Seok Ryoo, Maria C. Carrasquilla, Anna Rosalee Pasternak, Wayne T. Sanderson, Subba R. Palli

Entomology Faculty Publications

Spotted fever group (SFG) rickettsiosis includes a group of illnesses with similar symptoms caused by Rickettsia species bacteria. While Rickettsia rickettsii, the agent of Rocky Mountain spotted fever (RMSF) is a well-known pathogen, other SFG Rickettsia spp. can infect ticks and occasionally contribute to human disease. We conducted county-level surveillance of Dermacentor variabilis ticks in Kentucky to characterize the distribution and diversity of SFG Rickettsia. Ticks were collected from the environment from 2019 to 2024 by dragging a white cloth and through our Kentucky Tick Submission Program. In total, 2,023 D. variabilis ticks were collected from 114 …

Clinical Manifestations Of Bed Bug Bites: A Systematic Review Of Case Reports, Julian Felipe Porras-Villamil, Zachary C. Devries

Entomology Faculty Publications

Importance: Clinical characterization of bed bug (Cimex spp.) bite manifestations remains limited.   Objective: This systematic review synthesizes case reports to describe dermatological, systemic, and psychological outcomes of bed bug bites.   Evidence review: Following PRISMA guidelines, multiple databases, including Pubmed and Scopus, were searched using terms such as “bed bug,” “Cimex lectularius,” “Cimex hemipterus,” “case report,” and “case series.” Extracted data included demographics, species, lesion type, anatomical distribution, and clinical manifestations. Quantitative and qualitative analyses were conducted.   Results: Eighty-four patients were included: 76 with C. lectularius (90.5%) and, 8 with C. hemipterus (9.5%). Sex distribution was …

Complex Interplay Between Facilitation And Competition In Two Invasive Fruit Pests, Eleanor Mccabe, Nicholas M. Teets

Entomology Faculty Publications

When one invasive species facilitates the invasion of another species, it can lead to invasional meltdown. However, when the two species depend on the same finite resource, facilitation and competition can occur simultaneously and impact population dynamics. Furthermore, factors like resource availability and population density could alter the balance between facilitation and competition. Drosophila suzukii and Zaprionus indianus are two invasive insect pests that infest small fruit crops. The co-localization of these species in the same fields, coupled with the fact that Z. indianus lacks a hardened ovipositor that can penetrate the skin of fruit, has led to the hypothesis …

Elevated Temperatures Disrupt Wolbachia-Induced Feminisation And Reshape Microbial Community Dynamics Across Generations In A Spider Host, Virginija Mackevicius-Dubickaja, Jennifer A. White, Ellen E. Williams, Eyal Klement, Yuval Gottlieb, Matthew R. Doremus

Entomology Faculty Publications

Longitudinal microbial interactions within a host are challenging to study, leading to a focus on constructed microbial communities in vitro settings. Here, we take advantage of a naturally defined microbial community within a spider host to study how elevated temperatures influence microbial dynamics and phenotypes across host generations. The spider Mermessus fradeorum hosts up to five endosymbionts, including a Wolbachia strain, W1, which induces feminisation, causing genetic males to develop as phenotypic females, skewing sex ratios and promoting symbiont spread. Despite this, Wolbachia 1 persists at intermediate frequencies in wild populations. We hypothesised that elevated temperatures might reduce penetration of …

Evolutionary Transitions In Social Behavior Are Associated With Convergent And Partially Reversible Expansions Of Transcription Factor Binding Sites, Savanna G. Ploessl, Beryl M. Jones

Entomology Faculty Publications

The evolution of sociality involves shifts in physiology and behavior, most notably the emergence of a reproductive division of labor. Within social colonies, these distinct behavioral phenotypes arise from differential regulation of a shared genome. Changes in transcription factor (TF) binding motifs are one potential mechanism underpinning this plasticity, with prior studies suggesting that social species exhibit expansions in TF binding sites. However, it remains unclear whether motif expansions are reversed when sociality is lost. Here we analyze predicted TF motif occurrences across gene promoters in 42 bee species spanning millions of years of evolutionary divergence and multiple independent gains …

Complex Interplay Between Facilitation And Competition In Two Invasive Fruit Pests Data, Eleanor Mccabe, Nicholas Teets Phd

Entomology Research Data

When one invasive species facilitates the invasion of another species, it can lead to invasional meltdown. However, when the two species depend on the same finite resource, facilitation and competition can occur simultaneously and impact population dynamics. Furthermore, factors like resource availability and population density could alter the balance between facilitation and competition. Drosophila suzukii and Zaprionus indianus are two invasive insect pests that infest small fruit crops. The co-localization of these species in the same fields, coupled with the fact that Z. indianus lacks a hardened ovipositor that can penetrate the skin of fruit, has led to the hypothesis …

Effect Of Selected Insecticides On Calico Scale In Landscape Honey Locust Trees, 2024, Caleb J. Wilson, Zoë K. York

Entomology Faculty Publications

We evaluated the effect of selected insecticides on 6 mature Shademaster honey locust trees (Gleditsia triacanthos L., ‘Shademaster’) which were planted in 2 rows along a roadside on the University of Kentucky’s campus. We used a randomized complete block design where each tree represented a block, and within each tree, the effect of insecticides on scales was evaluated on separate labeled branches. All trees had been heavily infested with calico scale (CS) for multiple years. On each tree we sectioned off 11 randomly selected 30-cm branch sections with zip-ties. We applied treatments on 28 May 2024, when CS crawlers …

Long-Term Agricultural Management Reduces Abundance And Alters Community Structure Of Ground Beetles (Coleoptera: Carabidae), Cynthia M. Fiser, Nathan L. Haan, Douglas A. Landis

Entomology Faculty Publications

Carabid beetles (Coleoptera: Carabidae) are beneficial predators and bioindicators of ground-dwelling arthropod diversity in agricultural landscapes. We studied changes in community composition, activity density, and diversity of carabids in a long-term agroecosystem study spanning 30 years in the US Midwest. We contrasted carabid community metrics measured by pitfall trap sampling in two conservation-oriented treatments in a corn-soybean-wheat rotation. One treatment uses conventional practices but with reduced agrochemical inputs (Reduced Input), while the other has no synthetic inputs (Biologically Based). Since a 1994–95 study on the same site, in 2019 overall carabid activity density had declined a minimum of 58–76 % …

Spatiotemporal Variability And Functional Redundancy Obscure Effects Of Urbanization On Strawberry Pollinators, Kyla D. Schulte, Caleb J. Wilson, Anna Tawril, Mary A. Jamieson

Entomology Faculty Publications

Pollination services across rural–urban gradients may vary as land cover and other environmental attributes differentially influence pollinators. Most studies examining crop pollination, however, have been conducted in rural environments, while research in urban areas has lagged behind despite growing interest in urban agriculture. In this study, we hypothesized that increased urbanization would alter pollinator community composition due to a reduction in natural areas within the surrounding landscape, potentially decreasing pollinator abundance. To evaluate this hypothesis, we conducted a three-year study using strawberries as a focal study crop. We characterized the abundance, diversity, and community composition of bees across 10 farms …

Land Use Change Consistently Reduces Α- But Not Β- And Γ-Diversity Of Bees., Toby P N Tsang, A A Amado De Santis, Gabriela Armas-Quiñonez, John S Ascher, Eva Samanta Ávila-Gómez, András Báldi, Kimberly M Ballare, Mario V Balzan, Weronika Banaszak-Cibicka, Svenja Bänsch, Yves Basset, Adam J Bates, Jessica M Baumann, Mariana Beal-Neves, Ashley Bennett, Antonio Diego M Bezerra, Betina Blochtein, Riccardo Bommarco, Berry Brosi, Laura A Burkle, Luísa G Carvalheiro, Ignacio Castellanos, Marcela Cely-Santos, Hamutahl Cohen, Drissa Coulibaly, Saul A Cunningham, Sarah Cusser, Isabelle Dajoz, Deborah A Delaney, Ek Del-Val, Monika Egerer, Markus P Eichhorn, Eunice Enríquez, Martin H Entling, Natalia Escobedo-Kenefic, Pedro Maria Abreu Ferreira, Gordon Fitch, Jessica R K Forrest, Valérie Fournier, Robert Fowler, Breno M Freitas, Hannah R Gaines-Day, Benoît Geslin, Jaboury Ghazoul, Paul Glaum, Jose L Gonzalez-Andujar, Adrian González-Chaves, Heather Grab, Claudio Gratton, Solène Guenat, Catalina Gutiérrez-Chacón, Mark A Hall, Mick E Hanley, Annika Hass, Ernest Ireneusz Hennig, Martin Hermy, Juliana Hipólito, Andrea Holzschuh, Sebastian Hopfenmüller, Keng-Lou James Hung, Kristoffer Hylander, Jordi Izquierdo, Mary A Jamieson, Birgit Jauker, Steve Javorek, Shalene Jha, Björn K Klatt, David Kleijn, Alexandra-Maria Klein, Anikó Kovács-Hostyánszki, Jochen Krauss, Michael Kuhlmann, Patricia Landaverde-González, Tanya Latty, Misha Leong, Susannah B Lerman, Yunhui Liu, Ana Carolina Pereira Machado, Anson Main, Rachel Mallinger, Yael Mandelik, Bruno Ferreira Marques, Kevin Matteson, Frédéric Mccune, Ling-Zeng Meng, Jean Paul Metzger, Paula María Montoya-Pfeiffer, Carolina Morales, Lora Morandin, Jane Morrison, Sonja Mudri-Stojnić, Pakorn Nalinrachatakan, Olivia Norfolk, Mark Otieno, Mia G Park, Stacy M Philpott, Gideon Pisanty, Montserrat Plascencia, Simon G Potts, Eileen F Power, Kit Prendergast, Robyn D Quistberg, Davi De Lacerda Ramos, André Rodrigo Rech, Victoria Reynolds, Miriam H Richards, Stuart P M Roberts, Malena Sabatino, Ulrika Samnegård, Hillary Sardiñas, Karina Sánchez-Echeverría, Fernanda Teixeira Saturni, Jeroen Scheper, Amber R Sciligo, C Sheena Sidhu, Brian J Spiesman, Tuanjit Sritongchuay, Ingolf Steffan-Dewenter, Katharina Stein, Alyssa B Stewart, Jane C Stout, Hisatomo Taki, Pornpimon Tangtorwongsakul, Caragh G Threlfall, Carla Faleiro Tinoco, Teja Tscharntke, Katherine J Turo, Chatura Vaidya, Rémy Vandame, Carlos H Vergara, Blandina F Viana, Eric Vides-Borrell, Natapot Warrit, Elisabeth Webb, Catrin Westphal, Jennifer B Wickens, Neal M Williams, Nicholas S G Williams, Caleb J Wilson, Panlong Wu, Elsa Youngsteadt, Yi Zou, Lauren C Ponisio, Timothy C Bonebrake

Entomology Faculty Publications

Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e., γ-diversity), either due to reduced β-diversity amplifying diversity loss or increased β-diversity dampening diversity loss. Additionally, studies often focus on taxonomic diversity, while other important biodiversity components, including phylogenetic diversity, can exhibit differential responses. Here, we evaluated how agricultural and urban land use alters the taxonomic and phylogenetic α-, β-, and γ-diversity of an important pollinator taxon-bees. Using a multicontinental dataset of 3117 bee …

Diet Of Adult Ladybird Beetle Hosts Modifies The Postdiapause Development Of The Parasitoid Dinocampus Coccinellae (Hymenoptera: Braconidae), John J. Obrycki

Lady Beetle Research Data

Our study showed that under natural conditions the rate and speed of postdiapause emergence by overwintering larvae of the endoparasitic wasp, Dinocampus coccinellae (Schrank) is enhanced when its ladybird beetle host Coleomegilla maculata (DeGeer) receives a nutritious (proteinaceous) diet during late winter and early spring. Living aphid prey provided during April and May yielded the fastest rates of D. coccinellae postdiapause development, followed by an artificial protein/carbohydrate diet and flowering (pollen-producing) heads of dandelion. D. coccinellae development was slowest when hosts received only sugar water or water alone. These results indicate that there is an interaction during late dormancy between …

German Cockroach Allergen Mitigation, Olivia Katz

Theses and Dissertations--Entomology

German cockroaches (Blatella germanica L.) remain one of the most challenging indoor pests to manage, due in large part to their cryptic nature, rapid reproduction, and resistance to insecticides. Because of their close proximity to humans, they also pose several serious health threats, including the production and dissemination of several potent allergens linked to asthma development and exacerbation. Given the risks associated with cockroach allergens, we examined the longevity of two distinct cockroach allergens (Bla g 1 and Bla g 5) in the home environment and the efficacy of cleaners at removing these allergens. Our findings show that Bla …

Including Black Farmers, Excluding Pests: Perspectives On Participation In The Cooperative Extension Service, Briana Bazile

Theses and Dissertations--Entomology

In recent years, the U.S. Department of Agriculture has faced renewed scrutiny for documented discrimination against Black farmers, yet far less attention has focused on its century-old partner in public service delivery, the Cooperative Extension Service (CES). This gap is especially notable considering 1) federal parity mandates extant since 1972 in response to significant disparities between Black and White constituents and staff,2) public commitments to Diversity, Equity & Inclusion in 2020 and, 3) the contributions of Black leaders at the origins of CES, at Tuskegee University in the late nineteenth century. Using the Kentucky Cooperative Extension Service (KYCES) as a …

Causes And Consequences Of Reproductive Plasticity In The Seed Beetle, Callosobruchus Maculatus, Josiah P. Ritchey

Theses and Dissertations--Entomology

Competition for resources has direct effects on traits that can influence an individual’s reproductive success in competitive mating environments. When population density is high during development, competition for resources can reduce growth and body size at maturation, influencing resources available for reproduction. In this thesis, I investigate how the developmental environment affects plasticity in male reproductive traits, as well as the consequences of male reproductive plasticity on female reproductive behavior, in the seed beetle, Callosobruchus maculatus. My results show that increasing larval density causes male beetles to emerge small and transfer small ejaculates to females. However, small males transfer …

Dinotefuran Resistance In The German Cockroach (Blattella Germanica L.), Hannah F. Blevins

Theses and Dissertations--Entomology

German cockroaches (Blattella germanica L.) are one of the most prevalent and pervasive indoor pest species in the world. Infestations can lead to many negative impacts on humans, including sensitization to allergens, increase in asthmatic symptoms, mental health declines, and potentially, the spread of diseases. While insecticides remain the most effective and affordable option for German cockroach control, resistance to many commonly used insecticide active ingredients (AIs), such as pyrethroids, has been observed globally at high levels across different populations. Given such resistance to pyrethroids, inclusion of insecticides with alternative modes of action into insecticidal treatments could potentially improve cockroach …

Bed Bugs: Health Risks And Control, Simona Principato

Theses and Dissertations--Entomology

Bed bugs are blood-feeding hemipterans strongly associated with humans. Their detection in indoor environments, such as homes, hotels, trains, and public facilities, has increased gradually over the past 20 years. The exact cause of their resurgence is still unclear, but the increase of international travel and insecticide resistance are thought to have contributed to it.

Although bed bugs are not known to transmit diseases, the EPA, CDC, and USDA have classified them as a pest of significant public health concern, mainly due to the dermatitis that they can cause. Beyond the dermatological burden of the bites, other health implications often …

The Role Of Nutrition In Managing Honey Bee Viral Pathogen, Caroline Wylie Kane

Theses and Dissertations--Entomology

This study evaluated the impact of nutritional supplements on viral infections in honey bee colonies, focusing on Lake Sinai Virus 2 (LSV2), Deformed Wing Virus A (DWVA), and Deformed Wing Virus B (DWVB). I partnered with 32 hobbyist beekeepers across Kentucky, who volunteered 138 colonies for a month-long field study. Half of the colonies received weekly commercial supplements, while the other half served as controls. Viral titers were measured before and after the supplementation period using qPCR. Supplements did not significantly reduce viral titers for any of the three viruses, suggesting that short-term supplementation may not be effective in lowering …

A Multi-Objective Optimization Model For Cropland Design Considering Profit, Biodiversity, And Ecosystem Services, Caleb H. Geissler, Nathan L. Haan, Bruno Basso, Ames Fowler, Douglas A. Landis, Tyler J. Lark, Christos T. Maravelias

Entomology Faculty Publications

More sustainable agricultural methods are needed to alleviate the decreases in biodiversity and ecosystem services that have occurred because of industrial agriculture. One such method is the inclusion of alternative crops into croplands that can support biodiversity, reduce erosion and chemical runoff, and sequester carbon in the soil. However, the question of where such crops should be planted to balance competing economic and environmental objectives remains open. To this end, we develop a mixed-integer quadratically constrained program to optimize the layout of a cropland considering economic, biodiversity, greenhouse gas emissions, and water quality objectives. We include spatially varying fertilization as …

Molecular Mechanisms And Comparative Transcriptomics Of Diapause In Two Corn Rootworm Species (Diabrotica Spp.), Melise C. Lecheta, Chad Nielson, B. Wade French, Emily Nadeau, Nicholas M. Teets

Entomology Faculty Publications

Diapause is a programmed developmental arrest that can occur at any developmental stage depending on species, but the mechanisms that underscore embryonic diapause are poorly understood. Here, we identified molecular mechanisms underscoring distinct phases of diapause in the Diabrotica spp. complex. This species complex in- cludes economically significant agricultural pests, notably the western corn rootworm (WCR) and northern corn rootworm (NCR), which cause major losses in maize production. Rootworms undergo an obligate embryonic diapause to synchronize their life cycles with host plants, and we sequenced transcriptomes from both species at five time points (pre-diapause, diapause initiation, diapause maintenance, diapause termination, …

Zoysiagrass Tolerance To Selective Herbicides For The Removal Of Bermudagrass And The Distribution Of The Annual Bluegrass Weevil (Listronotus Maculicollis) In Kentucky, Kenneth D. Clayton

Theses and Dissertations--Plant and Soil Sciences

Bermudagrass (Cynodon dactylon) may be a problematic weed within zoysiagrass (Zoysia spp.) swards across its entire range. The objective of this study was to determine the efficacy of the herbicide safener metcamifen + trifloxysulfuron-sodium, in conjunction with fluazifop-P-butyl, at removing bermudagrass from zoysiagrass and how varying levels of treatment affected bermudagrass control and zoysiagrass tolerance. Field studies tested rates of metcamifen + trifloxysulfuron-sodium applied with fluazifop-P-butyl compared to treatments of fluazifop alone and fenoxaprop with triclopyr. All treatments controlled bermudagrass, and treatments with the herbicide safener remained under the 20% injury threshold for zoysiagrass for ≤ to 15 days compared …

Chronologically Inappropriate Morphogenesis (Chinmo) Is Required For Maintenance Of Larval Stages Of Fall Armyworm, Xien Chen, Jinmo Koo, Surjeet Kumar Arya, Subba R. Palli

Entomology Faculty Publications

Broad complex (Br-C) and eip93F (E93) transcription factors promote insect metamorphosis from larva to pupa and from pupa to adult, respectively. Recently, chronologically inappropriate morphogenesis (Chinmo) has been proposed as a larval specifier in Drosophila melanogaster. However, whether Chinmo is required for larval maintenance in lepidopteran insects, the underlying mechanisms involved in maintaining the larval stage, and its interactions with the JH signaling pathway are not well understood. Here, we used a binary transgenic CRISPR/Cas9 system to knockout Chinmo and Kr-h1 (primary response gene in the JH signaling pathway) in the fall armyworm (FAW). Kr-h1 knockout induced premature metamorphosis only …

Repeated Shifts In Sociality Are Associated With Fine-Tuning Of Highly Conserved And Lineage-Specific Enhancers In A Socially Flexible Bee, Beryl M. Jones, Andrew E. Webb, Scott M. Geib, Sheina Sim, Rena M. Schweizer, Michael G. Branstetter, Jay D. Evans, Sarah D. Kocher

Entomology Faculty Publications

Comparative genomic studies of social insects suggest that changes in gene regulation are associated with evolutionary transitions in social behavior, but the activity of predicted regulatory regions has not been tested empirically. We used self-transcribing active regulatory region sequencing, a high-throughput enhancer discovery tool, to identify and measure the activity of enhancers in the socially variable sweat bee, Lasioglossum albipes. We identified over 36,000 enhancers in the L. albipes genome from 3 social and 3 solitary populations. Many enhancers were identified in only a subset of L. albipes populations, revealing rapid divergence in regulatory regions within this species. Population-specific enhancers …

Arthropod Arbiters: Natural Enemy Communities Mediate The Effects Of Landscape And Local-Scale Complexity On Lygus-Induced Crop Loss In Organic Strawberries, Adrian Lu, David J. Gonthier, Amber Sciligo, Karina Garcia, Taiki Chiba, Gila Juárez, Claire Kremen

Entomology Faculty Publications

Sustainable pest management requires growers and regional land managers to consider the relationships among pest management practices, pest and natural enemy communities, crop loss, and multi-scalar habitat complexity. However, the causal links among these variables, in particular potential interactions between landscape and local-scale habitat complexity, remain underexplored. In the context of organically managed strawberry crops in California’s Central Coast, we tested the independent effects of landscape and local habitat complexity gradients on arthropod communities and crop loss using a piecewise structural equation model (PSEM). We found that landscape-scale woody habitat proportion indirectly decreased crop loss through its positive effect on …

Environmental Conditions Influencing Seasonal Population Dynamics Of Drosophila Suzukii (Diptera: Drosophilidae) In A Mid-Latitude Organic Farm Data, Eleanor Mccabe, Nicholas M. Teets, Jack J. Devlin, Megan E. Mccabe

Entomology Research Data

1. The local population dynamics of an invasive species are important for predicting impacts and determining proper management approaches. Temporal and spatial distribution can influence monitoring and treatment decisions and understanding climatic variables that affect population size can help predict peak population numbers.
2. Drosophila suzukii (Matsumara, 1931) is an invasive fruit pest, and its seasonal dynamics vary across its range. In this study, we conducted a three-year trapping study in conjunction with various modeling approaches to determine the environmental variables that influence population dynamics of D. suzukii across all seasons in central Kentucky.
3. Both male and female flies …

Checklist And Key To Species Of Stink Bugs (Hemiptera, Heteroptera, Pentatomidae) Of Kentucky, United States Of America, Armando Falcon-Brindis, Raul Villanueva

Entomology Faculty Publications

Stink bugs (Heteroptera: Pentatomidae) have received a lot of attention as there are many economically important pest species. However, the status of species richness, distribution, and taxonomy remain overlooked and outdated in Kentucky (USA). Having such information at a regional scale is crucial to allow the development of suitable pest management and conservation programs. Here, the stink bug fauna of Kentucky was ex- amined from museum specimens, literature, and public online repositories. Overall, 42 species in 28 genera and three subfamilies (Asopinae, Podopinae, and Pentatominae) are listed from Kentucky. Thirteen species are new records for Kentucky, 10 species are considered …