Entomology Commons^™

Tapeworms Of Elasmobranchs, Part Iii: A Monograph On The Phyllobothriidae (Platyhelminthes, Cestoda), Timothy R. Ruhnke

Bulletin of the University of Nebraska State Museum (1924–2023)

This monograph aims to provide information on the taxonomic status of all genera associated with the tetraphyllidean family Phyllobothriidae. Full treatments of the three valid species of the type genus, Phyllobothrium, in addition to the 47 valid species of Clistobothrium, Crossobothrium, Marsupiobothrium, Monorygma, Nandocestus, Orectolobicestus, Orygmatobothrium, Paraorygmatobothrium, Ruhnkecestus, and Scyphophyllidium are provided, as is a taxonomic history of the family. Of the valid genera historically associated with the family, only Phyllobothrium is considered to be an unambiguous member of the family. The genera Bibursibothrium, Calyptrobothrium, Cardiobothrium, Clistobothrium, Crossobothrium, Doliobothrium, Flexibothrium, Marsupiobothrium, Monorygma, Nandocestus, Orectolobicestus, Orygmatobothrium, Paraorygmatobothrium, Ruhnkecestus, Scyphophyllidium …

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia

Biosecurity published reports

Biosecurity is the protection of the economy, environment and human health from the negative impacts of pests, weeds and diseases, including the management of invasive species if they become established (definition adopted by AusBIOSEC).

This requires steps to prevent the entry of harmful organisms, as well as the timely and efficient management of them if they do enter.

Biosecurity threats range from catastrophic diseases such as Foot and Mouth Disease, which causes rapid and widespread animal deaths, to more subtle and slower spreading problems such as invasive weeds, mussels that foul vessel hulls and fungus-induced dieback disease of trees. These …

Biology Department Newsletter, No.1, Sacred Heart University

Biology Newsletter

No abstract provided.

Nebline, January 2011

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Tightening Your Belt in Tough Times

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Annual Report Special Pullout Section

Sex Pheromone Composition And Reproductive Isolation In Two Busseola Species (Lepidoptera: Noctuidae) In Kenya, A. E. Félix, P. A. Calatayud, B. Le Ru, J. F. Silvain, B. Frérot

All Peer-Reviewed Publications

Closely related species provide an interesting and useful model to understand mate communication diversification. Pre-mating isolation is the result of selection processes and is achieved by utilization of different sex pheromones, but also by different ecological and life traits such as geographic distribution, host-plant specialization and allochrony of sexual behavior. Here, we report sex pheromone identifications and pre-mating isolation of two closely related species of stemborers: Busseola segeta and the yet undescribed Busseola nov. sp., developing on different host-plants and in different geographical locations in Kenya. GC-MS analyses showed that the two species produced the same pheromone components, but in …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Characterization Of Wolbachia And Its Interaction In Host Mosquitoes, Eunho Suh

Theses and Dissertations--Entomology

Wolbachia are maternally inherited, obligate, intracellular bacteria inducing a form of sterility known as cytoplasmic incompatibility. Wolbachia based strategies have been proposed for the control of disease vectors. One example is to use a population replacement strategy to drive into natural population a novel Wolbachia that modifies the age structure of a vector population, reducing disease transmission.

In this research, the effects of a life-shortening stain of Wolbachia (popcorn Wolbachia) are transferred into the mosquitoes Aedes albopictus (Chapter Two and Three) and A. aegypti (Chapter Four and Five). In Chapter Two, the Wolbachia symbiosis significantly reduced fecundity and …

The Flight Activity Of Prostephanus Truncatus (Horn) (Coleoptera: Bostrichidae) And Teretrius Nigrescens Lewis (Coleoptera: Histeridae) In Kenya, Bonaventure Aman Omondi, Nanqing Jiang, Johnnie Van Den Berg, Fritz Schulthess

All Peer-Reviewed Publications

The invasive storage pest, the larger grain borer (LGB) Prostephanus truncatus (Horn), was introduced into the maize-deficit, semi-arid areas of the eastern region in Kenya in the early 1980s. In spite of containment efforts and the introduction of the predator Teretrius nigrescens Lewis from Mexico, LGB has spread to the main maize production zone in western Kenya during the past five years. The present work presents results from a 28-month monitoring effort of LGB and its predator, using pheromone traps at five locations along an east-west transect across Kenya. LGB occurred in all regions with highest trap catches in the …

Repellent Activity Of Catmint, Nepeta Cataria, And Iridoid Nepetalactone Isomers Against Afro-Tropical Mosquitoes, Ixodid Ticks And Red Poultry Mites, Michael A. Birkett, Ahmed Hassanali, Solveig Hoglund, Jan Pettersson, John A. Pickett

All Peer-Reviewed Publications

The repellent activity of the essential oil of the catmint plant, Nepeta cataria (Lamiaceae), and the main iridoid compounds (4aS,7S,7aR) and (4aS,7S,7aS)-nepetalactone, was assessed against (i) major Afro-tropical pathogen vector mosquitoes, i.e. The malaria mosquito, Anopheles gambiae s.s. and the Southern house mosquito, Culex quinquefasciatus, using a World Health Organisation (WHO)-approved topical application bioassay (ii) the brown ear tick, Rhipicephalus appendiculatus, using a climbing repellency assay, and (iii) the red poultry mite, Dermanyssus gallinae, using field trapping experiments. Gas chromatography (GC) and coupled GC-mass spectrometry (GC-MS) analysis of two N. cataria chemotypes (A and B) used in the repellency assays …

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Advanced Management Of The Mexican Rice Borer (Eoreuma Loftini) In Sugarcane, Blake Emerson Wilson

LSU Master's Theses

Insecticide, greenhouse and varietal resistance experiments were conducted in Texas to develop management tactics for the Mexican rice borer, Eoreuma loftini (Dyar), sugarcane. A 3-treatment, large plot aerial application study was set up in 5 commercial sugarcane fields (35-84 acres) to evaluate the utilization of pheromone traps to improve chemical control strategies for E. loftini during 2009 and 2010 growing seasons. A threshold of 20-25 moths/trap/wk was used as an indicator to initiate monitoring for E. loftini larval infestations. Larval infestations were directly related to the no. of moths/trap/wk (R2=0.71). Reductions in borer injury and adult emergence (60% and 40% …

Characterization Of The Subcortical Interactions Between Larvae Of The Southern Pine Sawyer Monochamus Titillator (F.) And The Larvae Of The Southern Pine Beetle Guild Using Molecular Gut Analyses, Erich N. Schoeller

LSU Master's Theses

The southern pine beetle guild (Coleoptera: Curculionidae: Scolytinae) is arguably the most destructive group of forest pests in the Southeastern United States. Laboratory assays suggest that larvae of wood borer associates from the genus Monochamus (Coleoptera: Cerambycidae) may be facultative intraguild predators of southern pine beetle guild. In this study the dynamics of the subcortical interactions between M. titillator (F.) and members of the southern pine beetle guild were examined using PCR-based molecular gut content analyses. Species-specific PCR primer sets were developed to work under multiplex PCR conditions to detect DNA of members of southern pine beetle guild in the …

Contribution Of Bacillus Thuringiensis Cotton Cultivars And Insecticides To A Fall Armyworm, Spodoptera Frugiperda (J. E. Smith), (Lepidoptera : Noctuidae) Management Strategy, Jarrod T. Hardke

LSU Doctoral Dissertations

Fall armyworm, Spodoptera frugiperda (J. E. Smith), response to cottons, Gossypium hirsutum L., expressing Bacillus thuringiensis (Bt) insecticidal proteins, Cry1Ac (Bollgard®), Cry1Ac + Cry2Ab (Bollgard II®), and Cry1Ac + Cry1F (WideStrike™), was evaluated in field and laboratory experiments. In field trials, larvae that were infested on selected fruiting forms (squares, white flowers, and bolls) of WideStrike™ plants had lower survivorship and caused less injury than larvae on non-Bt plants, regardless of fruiting structures. Bollgard® and Bollgard II® plants produced no consistent negative effects on fall armyworm survivorship and injury. In no-choice laboratory assays, Bollgard II® and WideStrike™ cotton tissue reduced …

Agroecological Factors Impacting Stem Borer (Lepidoptera: Crambidae) Dynamics In Gulf Coast Sugarcane And Rice, Julien M. Beuzelin

LSU Doctoral Dissertations

Diatraea saccharalis (F.) and Eoreuma loftini (Dyar) are stem boring pests of sugarcane (Saccharum spp.) and rice (Oryza sativa L.) crops in the Gulf Coast region. Studies were conducted to determine the role of agroecological factors, including predator disruptions, alternate hosts, and crop phenological conditions, on stem borer populations.
The year after Hurricane Rita storm surge flooded sugarcane in Louisiana, a 71% reduction in the predaceous Solenopsis invicta Buren was recorded. Even with a 2.4-fold increase in the number of insecticide applications used for D. saccharalis management in flooded fields, growers still incurred higher injury.
In two field …

Molecular Mechanisms Of Bacillus Thuringiensis Resistance In The Sugarcane Borer, Yunlong Yang

LSU Doctoral Dissertations

The sugarcane borer, Diatraea saccharalis, is a major target pest of transgenic corn expressing Bacillus thuringiensis (Bt) proteins in many areas of the U.S. mid-southern region. A Cry1Ab-resistant (Cry1Ab-RR) strain of D. saccharalis has been developed from a single two-parent family-line. To examine the molecular mechanisms of the Cry1Ab resistance in this insect strain, cDNAs of five types of potential candidate genes related to Bt resistance were sequenced using reverse transcriptase polymerase chain reaction (RT-PCR) and 5’ rapid amplification of cDNA end (5’ RACE). The Bt resistance candidate genes examined included three trypsins (DsTRYs), three chymotrypsins (DsCHYs), three aminopeptidases N …

Ecology And Systematics Of Coleoptera In Woody Debris Of Eastern North American Forests, Michael Leslie Ferro

LSU Doctoral Dissertations

Dead wood is a largely unexplored reservoir of taxonomic diversity and its ecology is poorly known despite its use as fuel and its roles in the carbon cycle and healthy ecosystems. During this research 15 new species of dead wood associated rove beetles (Staphylinidae: Pselaphinae) in the genus Sonoma Casey were discovered and described. Sonoma tolulae (LeConte) was redescribed. Taxonomic issues obfuscated the identity of another dead wood associate, Thoracophorus costalis (Erichson) (Staphylinidae: Osoriinae). Examination of holotypes resulted in the discovery of two nomenclatural synonyms: T. longicollis Motschulsky, and T. fletcheri Wendeler. An inexpensive emergence chamber used to collect insects …

Revision And Reclassification Of The Genera Of Phalacridae (Coleoptera: Cucujoidea), Matthew Gimmel

LSU Doctoral Dissertations

The family Phalacridae is monographed at the genus level using modern phylogenetic and classification methods. A morphological matrix of 106 characters and 2063 base pairs of aligned 18S rDNA sequence data were analyzed both separately and in a concatenated matrix, using maximum parsimony, Bayesian methods, and maximum likelihood. The phylogenetic hypotheses were used to construct a new subfamilial classification for the family. I recognize eight subfamilies, including two described as new: Biophytinae Guillebeau 1894, Eustilbinae Guillebeau 1892, Ochrolitinae Guillebeau 1894, Olibrinae Guillebeau 1892, Olibroporinae, subfam. nov., Olibrosominae, subfam. nov., Phaenocephalinae Matthews 1899, Phalacrinae Guillebeau 1892. Twenty-eight new generic synonymies are …

Role Of Substrate Moisture, Relative Humidity And Temperature On Survival And Foraging Behavior Of Formosan Subterranean Termites, Bal Krishna Gautam

LSU Doctoral Dissertations

The Formosan subterranean termite is an important structural pest in the southern United States, especially Louisiana. Baiting systems and spot treatment with non-repellent delayed action termiticides are among the most eco-friendly control approaches. However, to achieve a desired success from these approaches requires a sophisticated knowledge of foraging behavior and food transfer system of these social insects. Moisture and temperature play a vital role in influencing the foraging behavior of these desiccation prone insects. A series of laboratory experiments were conducted to understand the subtleties of foraging behavior of Coptotermes formosanus Shiraki in relation to moisture, relative humidity and temperature. …

Ecology And Chemical Ecology Of Plant-Insect Interactions In Rice: Implications For Pest Management, Jason Charles Hamm

LSU Doctoral Dissertations

Induced resistance to the rice water weevil, Lissorhoptrus oryzophilus, was assessed in greenhouse and field experiments. The fall armyworm,Spodoptera frugiperda, and an elicitor, jasmonic acid, were used to induce resistance. The effect of these treatments on rice resistance to oviposition varied between cultivar used, but significantly fewer larvae were found on plants exposed to S. frugiperda and jasmonic acid on both cultivars tested. Application of jasmonic acid significantly reduced the number of L. oryzophilus larvae per plant, and represents the first example of elicitor-induced resistance in rice in field experiments. Oviposition by the sugarcane borer, Diatraea saccharalis, induced resistance to …

Redbanded Stink Bug, Piezodorus Guildinii (Westwood): Pest Status, Control Strategies, And Management In Louisiana Soybean, Joshua H. Temple

LSU Doctoral Dissertations

The redbanded stink bug, Piezodorus guildinii (Westwood), was identified as a pest of Louisiana soybean during 2000. Currently, this species has become established throughout Louisiana and into the soybean production regions of bordering states. Seasonal abundance, patterns of oviposition, and population dynamics of this species were surveyed in soybean during 2008-10. The redbanded stink bug comprised the largest percentage (54%) of the total stink bug complex collected at five survey sites followed by the southern green (27%), Nezara viridula L. and brown (7%) stink bugs, Euschistus servus L. Peak oviposition occurred during the (R5) soybean growth stage. Most (80%) egg …

A Study Of Horn Fly, Haematobia Irritans (L.) (Diptera: Muscidae), Target-Site Sensitivity, Susceptibility, And Resistance Management At Selected Sites In Louisiana, Cole David Younger

LSU Doctoral Dissertations

The purpose of the first study was to evaluate the effectiveness of the use of a mid-season avermectin pour-on to cattle for managing OP resistance in horn fly populations at the Rosepine Louisiana Agricultural Research Station. During an eight year study, ivermectin treatments were made three times (when the treatment threshold of less than five weeks of control was reached), and in the following years, the number of weeks of control increased to 9 to 10 weeks each time. The purpose of the second study was to test a two-year OP/one-year pyrethroid rotation strategy as a strategy for maintaining susceptibility …

Molecular Mechanisms Of Bacillus Thuringiensis Resistance In The Sugarcane Borer, Yunlong Yang

LSU Doctoral Dissertations

The sugarcane borer, Diatraea saccharalis, is a major target pest of transgenic corn expressing Bacillus thuringiensis (Bt) proteins in many areas of the U.S. mid-southern region. A Cry1Ab-resistant (Cry1Ab-RR) strain of D. saccharalis has been developed from a single two-parent family-line. To examine the molecular mechanisms of the Cry1Ab resistance in this insect strain, cDNAs of five types of potential candidate genes related to Bt resistance were sequenced using reverse transcriptase polymerase chain reaction (RT-PCR) and 5’ rapid amplification of cDNA end (5’ RACE). The Bt resistance candidate genes examined included three trypsins (DsTRYs), three chymotrypsins (DsCHYs), three aminopeptidases N …

Introduction And Establishment Of Cyrtobagous Salviniae Calder And Sands (Coleoptera: Curculionidae) For The Control Of Salvinia Minima Baker (Salviniaceae), And Interspecies Interactions Possibly Limiting Successful Control In Louisiana, Katherine A. Parys

LSU Doctoral Dissertations

Common salvinia, Salvinia minima Baker, is a floating aquatic invasive macrophyte that obstructs waterways and causes problems in wetlands across Louisiana and Texas. The salvinia weevil, Cyrtobagous salviniae Calder and Sands, has been released in over 14 countries around the world for the biological control of Salvinia spp. We successfully monitored the introduction and establishment of C. salviniae on S. minima in southern Louisiana between 2006 and 2010. Cyrtobagous salviniae significantly lowered the biomass of S. minima and increased the number of terminal buds damaged but had no significant impact on pH, dissolved oxygen, conductivity, surface temperature, percent of surface …

New Distributional Records Of Ants In Arkansas For 2009 And 2010 With Comments On Previous Records, D. M. General, L. C. Thompson

Journal of the Arkansas Academy of Science

No abstract provided.

Twenty Three True Bug State Records For Arkansas, With Two For Ohio, U.S.A., S. W. Chordas Iii, R. Tumlison, H. W. Robison, J. Kremers

Journal of the Arkansas Academy of Science

No abstract provided.

Phenology Of Stable Fly (Diptera: Muscidae) Larvae In Round Bale Hay Feeding Sites In Eastern Nebraska, David B. Taylor, Dennis R. Berkebile

Department of Entomology: Faculty Publications

The temporal and spatial patterns of adult stable fly, Stomoxys calcitrans (L.), emergence from six sites where large round baled hay had been provided to pasture cattle as winter feed were studied using emergence traps. The substrate at these sites, consisting of waste hay mixed with bovine manure and urine, provided an excellent developmental habitat for immature stable flies. Stable flies were the most frequently collected fly emerging from these sites with a yearly average of 1,581 emerging per square meter. Stable fly emergence from these sites began in early May (235 annual accumulated Day-Degree 10°C [DD₁₀]), peaked …

Dose–Response Relationships Of Clothianidin, Imidacloprid, And Thiamethoxam To Blissus Occiduus (Hemiptera: Blissidae), M. D. Stamm, Frederick P. Baxendale, Tiffany Heng-Moss, Blair D. Siegfried, Erin E. Blankenship, Roch E. Gaussoin

Department of Entomology: Faculty Publications

The western chinch bug, Blissus occiduus Barber (Hemiptera: Blissidae), has emerged as a serious pest of buffalograss, Buchloë dactyloides (Nuttall) Engelmann. In general, neonicotinoid insecticides effectively control a variety of turfgrass insects, particularly phloem-feeding pests. However, because of well documented inconsistencies in control, these compounds are generally not recommended for chinch bugs. This study was designed to document the contact and systemic toxicity of three neonicotinoid insecticides (clothianidin, imidacloprid, and thiamethoxam) to B. occiduus. In contact bioassays, thiamethoxam was ~20-fold less toxic than clothianidin or imidacloprid to B. occiduus nymphs and three-fold more toxic to adults. In adult systemic …