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Articles 271 - 300 of 429
Full-Text Articles in Entomology
Pestfacts Wa Issue 01 - April 2022, Cindy L. Webster, Svetlana Micic, Saleh Adnan, Janette Pratt, Jean Galloway, Adam H. Sparks, Jeff Russell
Pestfacts Wa Issue 01 - April 2022, Cindy L. Webster, Svetlana Micic, Saleh Adnan, Janette Pratt, Jean Galloway, Adam H. Sparks, Jeff Russell
PestFacts WA
PestFacts WA Issue 01 - April 2022 contents:
- What to expect from mollusc pests after a hot dry summer
- Meet our new team member – Dr Saleh Adnan
- Canola blackleg risk forecasts
- Have you checked out the new Grains Farm Biosecurity website?
A Checklist Of The Hawkmoths (Lepidoptera: Sphingidae) Of The Cayman Islands: With Implications For The Pollination Of The Ghost Orchid Dendrophylax Fawcettii Rolfe (Orchidaceae: Angraecinae) And Consideration Of Bat Predation, M. C. Rose-Smyth, R. R. Askew, P. A. Van B. Stafford, M. J. Simon, G. J. Gross, R. Rozycki
A Checklist Of The Hawkmoths (Lepidoptera: Sphingidae) Of The Cayman Islands: With Implications For The Pollination Of The Ghost Orchid Dendrophylax Fawcettii Rolfe (Orchidaceae: Angraecinae) And Consideration Of Bat Predation, M. C. Rose-Smyth, R. R. Askew, P. A. Van B. Stafford, M. J. Simon, G. J. Gross, R. Rozycki
Insecta Mundi
This checklist synthesises historic collections of Sphingidae (Lepidoptera) made during the summer months in the Cayman Islands in 1938 and 1975 with modern records drawn from a variety of sources. We report observations and collections made in all seasons of the year and provide natural history and larval food details. Four species, Phryxus caicus (Cramer) in all three islands, plus Isognathus rimosa (Grote), Enyo lugubris (Linnaeus), and Eumorpha satellitia (Linnaeus) in Grand Cayman only, are here reported as new records, for a total of 25 sphingid species occurring in the Cayman Islands. Seven species are new records for Grand Cayman, …
Conservation And Variation In Agricultural Landscapes: A Survey Of Insect Populations Across Naranjilla Cultivation Methods In The Eastern Andean Cloud Forest, Ian Zakelj
Independent Study Project (ISP) Collection
This study compared insect biodiversity among five sites in agricultural landscapes and natural forest in the El Placer community in the valley of the Rio Pastaza in the eastern Andean cloud forest. The area is of vital importance to conservation, as it falls in the ecological corridor between the Sangay and Llanganates national parks. The primary crop produced by the residents of El Placer is naranjilla, and it is cultivated in a variety of manners, mostly with intensive chemical use. The goal of the study was to find out which types of practices were the least harmful to the insect …
Characterization Of Hemocytes In Amblyomma Americanum And Investigation Of Traf6’S Role In Proliferation Of Hemocytes In Response To Infection, Jacquelyn T. May
Characterization Of Hemocytes In Amblyomma Americanum And Investigation Of Traf6’S Role In Proliferation Of Hemocytes In Response To Infection, Jacquelyn T. May
Electronic Theses and Dissertations
Amblyomma americanum is a medically important vector in the southeast United States. Cellular and molecular aspects of the immune system of this species were examined. To investigate cellular processes, hemocytes produced in response to gram-negative infection were characterized according to their ultrastructure. Four hemocyte types were identified: prohemocytes, plasmatocytes, type-I granulocytes, and type-II granulocytes. To elucidate molecular processes, we investigated AamTRAF as an immune-related gene by silencing the gene using RNAi then quantifying the hemocytes after inoculation with gram-negative and positive bacteria. It was found that silencing AamTRAF caused a decrease in hemocyte proliferation in response to gram-positive but not …
Integrated Honey Bee Education And Research Aids For Promoting Pollinator Conservation, Courtney Brummel
Integrated Honey Bee Education And Research Aids For Promoting Pollinator Conservation, Courtney Brummel
Department of Entomology: Dissertations, Theses, and Student Research
Extension and outreach programs combine University instruction and research, with off-campus outreach and service to the community. Successful public education requires training in which colleges and their education services provide programs relevant to today’s needs. To better engage with the public, institutions and Extension professionals often partner with private and not-for-profit organizations to provide training opportunities. The following thesis reviews one such partnership with the University of Nebraska-Lincoln and Kimmel Orchard & Vineyard that provides science-focused, on-farm experiences and agriculture production training programming. Chapter 1 reviews their partnership since it began in 2005 and highlights examples of current farm-to-table education …
Soybean Gall Midge (Resseliella Maxima Gagné): Insecticide Efficacy And Seasonal Larval Abundance, Vilma Maria Montenegro Castro
Soybean Gall Midge (Resseliella Maxima Gagné): Insecticide Efficacy And Seasonal Larval Abundance, Vilma Maria Montenegro Castro
Department of Entomology: Dissertations, Theses, and Student Research
Soybean gall midge, Resseliella maxima Gagné was recently identified as a new species injuring soybean in Nebraska, Iowa, South Dakota, Minnesota, and Missouri. Resseliella maxima injury is caused by its three instars that feed on tissues within the soybean stem. Infested plants exhibit a darkening of the stem, disrupting nutrient flow within the plant and can lead to wilting or death of plants. Total yield losses can occur in the first 30 m of the field in heavily infested sites. The biology and behavior of this newly described insects is not well understood and management strategies for the management of …
Developing Regional Extension Programs And Research Tools For Beekeepers, Sheldon Brummel
Developing Regional Extension Programs And Research Tools For Beekeepers, Sheldon Brummel
Department of Entomology: Dissertations, Theses, and Student Research
The body of work presented in this thesis describes the development and structure of the Regional Great Plains Master Beekeeping training program, which started in 2019, serves 1500+ beekeepers across five Midwest states (IA, KS, MO, NE, WY), and is supported through local partnerships and beekeepers. This chapter also discusses the leadership structure and aspects I developed for program advancement and long-term sustainability, such as incorporating mentorship and volunteer service goals as well as requiring independent projects to become a certified Master beekeeper. Independent projects may focus on research or teaching goals but must illustrate the candidate’s ability to apply …
Impact Of Net Houses On The Natural Regulation Of The Populations Of Trialeurodes Vaporariorum (Homoptera: Aleyrodidae) And Tuta Absoluta (Lepidoptera: Gelechiidae), Two Major Tomato Pests In Kenya, Anaïs Chailleux, Junitor Chepkemoi, Julien M. Haran, Laure Benoit, Robert Copeland, Emilie Deletre
Impact Of Net Houses On The Natural Regulation Of The Populations Of Trialeurodes Vaporariorum (Homoptera: Aleyrodidae) And Tuta Absoluta (Lepidoptera: Gelechiidae), Two Major Tomato Pests In Kenya, Anaïs Chailleux, Junitor Chepkemoi, Julien M. Haran, Laure Benoit, Robert Copeland, Emilie Deletre
All Peer-Reviewed Publications
The abandonment of insecticide treatments to achieve sustainable crop production calls for a combination of methods to obtain satisfactory pest control. To this end, net houses and biological control are two promising methods, though we suspected that most natural enemies are blocked outside the net houses. In Kenya, tomato crops are particularly threatened by Trialeurodes vaporariorum (Westwood 1856) and Tuta absoluta (Meyrick, 1917) that are targets of most insecticide treatments in this country. We investigated in an on-farm experiment (i) the abundances of T. vaporariorum and T. absoluta in open fields and in net houses, (ii) the diversity of arthropod …
Chemical Cues From Honeydew And Cuticular Extracts Of Trialeurodes Vaporariorum Serve As Kairomones For The Parasitoid Encarsia Formosa, Pascal Mahukpe Ayelo, Abdullahi A. Yusuf, Anaïs Chailleux, Samira A. Mohamed, Christian W.W. Pirk, Emilie Deletre
Chemical Cues From Honeydew And Cuticular Extracts Of Trialeurodes Vaporariorum Serve As Kairomones For The Parasitoid Encarsia Formosa, Pascal Mahukpe Ayelo, Abdullahi A. Yusuf, Anaïs Chailleux, Samira A. Mohamed, Christian W.W. Pirk, Emilie Deletre
All Peer-Reviewed Publications
Kairomones are semiochemicals that are emitted by an organism and which mediate interspecific interaction that is of benefit to an organism of another species that receives these chemical substances. Parasitoids find and recognize their hosts through eavesdropping on the kairomones emitted from the by-products or the body of the host. Hemipteran insect pests feed on plant sap and excrete the digested plant materials as honeydew. Honeydew serves as a nutritional food source for parasitoids and a medium for micro-organisms whose activity induces the release of volatiles exploited by parasitoids for host location. The parasitoid Encarsia formosa preferentially parasitizes its host, …
Measuring And Modelling Crop Yield Losses Due To Invasive Insect Pests Under Climate Change, Henri Ez Tonnang, Bonoukpoè M. Sokame, Elfatih M. Abdel-Rahman, Thomas Dubois
Measuring And Modelling Crop Yield Losses Due To Invasive Insect Pests Under Climate Change, Henri Ez Tonnang, Bonoukpoè M. Sokame, Elfatih M. Abdel-Rahman, Thomas Dubois
All Peer-Reviewed Publications
Climate change and agriculture are strongly correlated, and the fast pace of climate change will have impacts on agroecosystems and crop productivity. This review summarizes potential impacts of rising temperatures and atmospheric CO2 concentrations on insect pest-crop interactions and provides two-way approaches for integrating these impacts into crop models for sustainable pest management strategies designing. Rising temperatures and CO2 levels affect insect physiology, accelerate their metabolism and increase their consumption, ultimately increasing population densities, which result in greater crop injury and damage, and yield loss. Whereas these direct effects are empirically demonstrated for temperature rises, they are less straightforward for …
Geographic Variation In Host Selection In The Spider Wasps Entypus Unifasciatus (Say) And Tachypompilus Ferrugineus (Say) (Hymenoptera: Pompilidae), Ii, Frank E. Kurczewski, Joseph W. Stoll, Rick C. West, Kelly C. Kissane, Paige R. Chesshire, Neil S. Cobb
Geographic Variation In Host Selection In The Spider Wasps Entypus Unifasciatus (Say) And Tachypompilus Ferrugineus (Say) (Hymenoptera: Pompilidae), Ii, Frank E. Kurczewski, Joseph W. Stoll, Rick C. West, Kelly C. Kissane, Paige R. Chesshire, Neil S. Cobb
Insecta Mundi
This paper is the sequel to a 20 year-long (2002–2021) study of geographic variation in host selection in the common American spider wasps (Hymenoptera: Pompilidae) Entypus unifasciatus (Say) (Pepsini) and Tachypompilus ferrugineus (Say) (Pompilini) (rusty spider wasp). Geography and host spider family are strongly linked in both species when 3387 host spider locality records from the years 1918–2021 are mapped. Entypus unifasciatus lycosid host records are plentiful from 43–44° N in the United States and southern Ontario to northern Mexico. Tachypompilus ferrugineus lycosid host records are abundant from southern Ontario and New England southward to Mexico east of the Rocky …
First Record Of Agrilus Cliftoni Knull And Anthaxia Viridifrons Gory (Coleoptera: Buprestidae) In Wisconsin, Lawrence Barringer
First Record Of Agrilus Cliftoni Knull And Anthaxia Viridifrons Gory (Coleoptera: Buprestidae) In Wisconsin, Lawrence Barringer
Insecta Mundi
Two species of Coleoptera: Buprestidae are reported from Wisconsin for the first time: Agrilus cliftoni Knull and Anthaxia viridifrons Gory. Trapping, distribution information, and additional records are also discussed.
Jewel beetles such as emerald ash borer (EAB) (Agrilus planipennis Fairmaire), continue to be of interest as established pests (USDA APHIS 2021). Survey programs allow for the detection of EAB as it continues to spread across North America while monitoring for other taxa not yet present in the eastern United States such as the goldspotted oak borer (Agrilus. auroguttatus Schaeffer) and oak splendor beetle Agrilus biguttatus Fabricius (CERIS …
Megalurothrips Usitatus Bagnall (Thysanoptera: Thripidae), First Record Of An Important New Pest In Honduras, Jesus Orozco
Megalurothrips Usitatus Bagnall (Thysanoptera: Thripidae), First Record Of An Important New Pest In Honduras, Jesus Orozco
Insecta Mundi
Megalurothrips usitatus Bagnall (Thysanoptera: Thripidae), an invasive and highly destructive pest of beans, is recorded for the first time for Honduras. The species is illustrated to aid in its identification. Specimens were collected from Phaseolus vulgaris L. (common bean), Crotalaria juncea L. (sunn hemp), and Melampodium divaricatum (Rich.) DC (butter daisy).
Common beans (Phaseolus vulgaris L., (Fabaceae)), are a staple food source in Honduran cuisine, as they are eaten at least once daily by the majority of the population. This crop is a large part of the economy of the country and the only source of income for many …
A Segmented And Clawed Male Foreleg In A Newly Described Genus And Species Of Eumaeine Butterfly (Lepidoptera: Lycaenidae), Robert K. Robbins, Christophe Faynel, Jason P.W. Hall, Robert C. Busby
A Segmented And Clawed Male Foreleg In A Newly Described Genus And Species Of Eumaeine Butterfly (Lepidoptera: Lycaenidae), Robert K. Robbins, Christophe Faynel, Jason P.W. Hall, Robert C. Busby
Insecta Mundi
Grishinata Robbins and Busby, new genus (Lepidoptera: Lycaenidae: Eumaeini), possesses a five-segmented foretarsus with a clawed pretarsus, a trait that differentiates it from all eumaeine genera except Theclopsis Godman and Salvin. Grishinata penny Busby, Hall, and Robbins, new species, differs from all species of Theclopsis (and most Eumaeini) in lacking male secondary sexual organs on the wings or in the abdomen. It is recorded from the eastern slope of the Andes in Ecuador and Peru. We cannot place Grishinata penny in an existing Eumaeini genus based upon its wing pattern, male foreleg structure, lack of male secondary sexual organs, and …
Impact Of The Timing And Use Of An Insecticide On Arthropods In Cover-Crop-Corn Systems, Gabriela Inveninato Carmona, Emily Robinson, Julia Nogueira Duarte Campos, Anthony Justin Mcmechan
Impact Of The Timing And Use Of An Insecticide On Arthropods In Cover-Crop-Corn Systems, Gabriela Inveninato Carmona, Emily Robinson, Julia Nogueira Duarte Campos, Anthony Justin Mcmechan
Department of Entomology: Faculty Publications
Cover crops provide a habitat for pests and beneficial arthropods. Unexpected pest pressure in a cover-crop-to-corn system can occur and result in increased use of insecticides. Eight site-years of on-farm field studies were conducted in 2019, 2020, and 2021. The objective of the study was to evaluate the impact of insecticide timing relative to cover-crop termination on arthropod activity in a cover-crop-to-corn system. The treatments consisted of (i) glyphosate to terminate the cover crop, (ii) glyphosate and pyrethroid tank mix to terminate the cover crop, and (iii) glyphosate to terminate the cover crop and pyrethroid application 25 days after the …
Billbugs In Turfgrass (Sphenophorus Spp.), Desiree Wickwar, Ricardo Ramirez
Billbugs In Turfgrass (Sphenophorus Spp.), Desiree Wickwar, Ricardo Ramirez
All Current Publications
Billbugs are weevils, a type of beetle, in the genus Sphenophorus. At least 10 billbug species are known pests of turfgrass and can be found in both warm and cool season turfgrasses throughout the United States. Though billbug adults do feed on the leaves of turfgrasses, it is the larvae that cause visible damage. Larvae feed within the stems and on roots of grasses, leading to the development of yellow or brown patches, with the potential to escalate into large patches of dead turfgrass. Billbug management in turfgrass presents a number of unique challenges, but early monitoring and informed integration …
Release Rates Of Typhlodromus Athiasae Porath And Swirski (Acari: Phytoseiidae) To Control The Two-Spotted Spider Mite Tetranychus Urticae Koch (Acari: Tetranychidae) On Apple Seedlings Under Greenhouse Conditions, معدلات إطلاق المفترس Typhlodromus Athiasae Porath And Swirski (Acari: Phytoseiidae) للسيطرة على الأكاروس الأحمر ذو البقعتين Tetranychus Urticae Koch (Acari: Tetranychidae) على غراس تفاح ضمن شروط البيوت البلاستيكية, Ibrahem Sakr, Majeda Mofleh, Abd-Ulnabi Basheer, Hamza Dahiah
Release Rates Of Typhlodromus Athiasae Porath And Swirski (Acari: Phytoseiidae) To Control The Two-Spotted Spider Mite Tetranychus Urticae Koch (Acari: Tetranychidae) On Apple Seedlings Under Greenhouse Conditions, معدلات إطلاق المفترس Typhlodromus Athiasae Porath And Swirski (Acari: Phytoseiidae) للسيطرة على الأكاروس الأحمر ذو البقعتين Tetranychus Urticae Koch (Acari: Tetranychidae) على غراس تفاح ضمن شروط البيوت البلاستيكية, Ibrahem Sakr, Majeda Mofleh, Abd-Ulnabi Basheer, Hamza Dahiah
Arab Journal of Arid Environments المجلة العربية للبيئات الجافة
A study was conducted at the Biological control studies and Research Centre -BCSRS (Damascus University /Syria) during 2013 - 2014. The effectiveness of the predatory mite Typhlodromus athiasae Porath and Swirski (Acari: Phytoseiidae) as a suppressive agent of the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), was evaluated on apple seedlings at release rates 1:10, 1:20 1:40 predator:prey and no predaceous mites serving as control under greenhouse conditions. The ratio of 1:10 predator:prey reduced T. urticae populations significantly after one week of release with the highest density of T. athiasae occurring in 6th week, and kept them at low …
Influence Of Soil Of Grape Phylloxera (Phylloxera Vitifolia) In Some Vineyards In Two Regions Massad And Rhasas In Alsweda Governorate/ Syria, دراسة تأثير خصائص التربة في حشرة فيلوكسيرا العنب الجذرية Phylloxera Vitifolia Fitch في بعض بساتين العنب التجارية في منطقتي مصاد ورساس في محافظة السويداء / سورية, Abdulnabi Basheer, Wajih Al-Kessis, Basel Al-Shadidi
Influence Of Soil Of Grape Phylloxera (Phylloxera Vitifolia) In Some Vineyards In Two Regions Massad And Rhasas In Alsweda Governorate/ Syria, دراسة تأثير خصائص التربة في حشرة فيلوكسيرا العنب الجذرية Phylloxera Vitifolia Fitch في بعض بساتين العنب التجارية في منطقتي مصاد ورساس في محافظة السويداء / سورية, Abdulnabi Basheer, Wajih Al-Kessis, Basel Al-Shadidi
Arab Journal of Arid Environments المجلة العربية للبيئات الجافة
The study was carried out during 2015, in order to evaluate the effect of soil properties in Grape Roots Phylloxera Phylloxera vitifoliae in commercial Grape fields in Al-Suwieda Governorate / Syria (Massad and Rhasas) grafted on B41 and Ruggeri 140 rootstocks. The study showed that phylloxera vitifoliae caused significant damage to the grape vine planted in a soil with high content of clay, negative correlation between the percentage of organic matter and the average population density, and a positive correlation with the death rate for different stages of the insect in two study sites were found. A negative correlation between …
Tick Surveillance And Pathogen Detection In Eastern South Dakota, Holly E. Black
Tick Surveillance And Pathogen Detection In Eastern South Dakota, Holly E. Black
Honors Thesis
Tick-borne diseases threaten the health of humans, animals, and ecosystems, but surveillance efforts are lacking in some regions. Throughout 2019, 2020, and 2021, we conducted tick surveys aimed at determining the status of the black-legged tick (Ixodes scapularis), the American dog tick (Dermacentor variabilis) and the lone star tick (Amblyoma americanum) in eastern South Dakota. Each year, ticks were collected using a flagging method and identified in the lab. A subset were tested for the presence of Borrelia burgdorferi, the causative agent of Lyme disease, by polymerase chain reaction (PCR). Dermacentor variabilis was the most commonly identified tick, …
Diel Activity Patterns Of Two Distinct Populations Of Aedes Aegypti In Miami, Fl And Brownsville, Tx, John-Paul Mutebi, André Barretto Bruno Wilke, Erik Ostrum, Chalmers Vasquez, Gabriel Cardenas, Augusto Carvajal, Maday Moreno, William D. Petrie, Arturo Rodriguez, Henry Presas, Jesus Rodriguez, Fred Barnes, Christopher Vitek, Xochitl Estrada, Thalia Rios, Jeremy Marshall
Diel Activity Patterns Of Two Distinct Populations Of Aedes Aegypti In Miami, Fl And Brownsville, Tx, John-Paul Mutebi, André Barretto Bruno Wilke, Erik Ostrum, Chalmers Vasquez, Gabriel Cardenas, Augusto Carvajal, Maday Moreno, William D. Petrie, Arturo Rodriguez, Henry Presas, Jesus Rodriguez, Fred Barnes, Christopher Vitek, Xochitl Estrada, Thalia Rios, Jeremy Marshall
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
The diel biting activity of Aedes (Stegomyia) aegypti (L) populations was extensively investigated in the early 1900s to gain more information on the biology of Ae. aegypti, and this information was used to devise effective approaches to controlling populations of this species and protect the human population from widespread arbovirus outbreaks. However, few contemporary studies are available regarding the diel activity patterns of Ae. aegypti. To assess the diel activity patterns of Ae. aegypti in southern Florida and Texas, we conducted 96-h uninterrupted mosquito collections once each month from May through November 2019 in Miami, Florida, and Brownsville, Texas, using …
Genetic Connectivity Of Trypanosomes Between Tsetse-Infested And Tsetse-Free Areas Of Kenya, Naomi N. Kimenyi, Kelvin M. Kimenyi, Nelson O. Amugune, Merid N. Getahun
Genetic Connectivity Of Trypanosomes Between Tsetse-Infested And Tsetse-Free Areas Of Kenya, Naomi N. Kimenyi, Kelvin M. Kimenyi, Nelson O. Amugune, Merid N. Getahun
All Peer-Reviewed Publications
The prevalence rates of trypanosomes, including those that require cyclical transmission by tsetse flies, are widely distributed in Africa. Trypanosoma brucei and Trypanosoma congolense are actively maintained in regions where there are no tsetse flies although at low frequencies. Whether this could be due to an independent evolutionary origin or multiple introduction of trypanosomes due to continuous movement of livestock between tsetse-free and -infested areas is not known. Thus, the aim of the study was to carry out microsatellite genotyping to explore intra-specific genetic diversity between T. (Trypanozoon), T. congolense and Trypanosoma vivax from the two regions: tsetse infested and …
Bombycid Species, Trilocha Varians (Lepidoptera: Bombycidae) An Emerging Insect Pest Of Ornamental Plants In Pakistan, Muhammad Mansoor, Waheed Ahmad, Roshan Zada, Hafiz Muhammad Faisal Ayub, Imtiaz Khan, Musaddiq Israr, Awais Rasool, Muhammad Shehzad Khan
Bombycid Species, Trilocha Varians (Lepidoptera: Bombycidae) An Emerging Insect Pest Of Ornamental Plants In Pakistan, Muhammad Mansoor, Waheed Ahmad, Roshan Zada, Hafiz Muhammad Faisal Ayub, Imtiaz Khan, Musaddiq Israr, Awais Rasool, Muhammad Shehzad Khan
Journal of Bioresource Management
Weeping fig, Ficus benjamina, belongs to Moraceae family is planted alongside the roads as decorative plant and landscape purposes. Fig plants were seen infested with Trilocha varians for three years ago in University of Agriculture Faisalabad, Punjab Pakistan. The complete defoliation, even death of whole plant was observed caused by larvae. The complete metamorphosis was recorded with five larval instars. The fecundity of female was recorded very high (180-300) during its whole life period. The results showed that male was long lived than female. Further studies on current pest biology, host range, biological fauna and management associated with it are …
Oral Susceptibility To Ivermectin Is Over Fifty Times Greater In A Wild Population Of Anopheles Albimanus Mosquitoes From Belize Than The Stecla Laboratory Reference Strain Of This Mosquito, Staci M. Dreyer, Kelsey J. Morin, Marla Magaña, Marie Pott, Donovan Leiva, Nicole L. Achee, John P. Grieco, Jefferson A. Vaughan
Oral Susceptibility To Ivermectin Is Over Fifty Times Greater In A Wild Population Of Anopheles Albimanus Mosquitoes From Belize Than The Stecla Laboratory Reference Strain Of This Mosquito, Staci M. Dreyer, Kelsey J. Morin, Marla Magaña, Marie Pott, Donovan Leiva, Nicole L. Achee, John P. Grieco, Jefferson A. Vaughan
Biology Faculty Publications
Background
The STECLA strain of Anopheles albimanus has been in continuous colony for many years and is the reference strain on which genomic studies for the species are based. Recently, the STECLA strain was demonstrated to be much less susceptible to ivermectin ingested in a blood meal (4-day LC50 of 1468 ng/ml) than all other Anopheles species tested to-date (LC50 values range from 7 to 56 ng/ml). The ability of An. albimanus to survive ingestion of ivermectin at concentrations far beyond that typically found in the blood of ivermectin-treated people or livestock (i.e., 30–70 ng/ml) could invalidate the use of …
Nebline, March/April 2022
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Become a Groundwater Steward
4 Ways to Celebrate National Nutrition Month
Recipe of the Month
Selecting Fruit Trees for Eastern Nebraska
Garden Guide: Things to Do This Month
2022 Chemigation Trainings
Lancaster County Ag VIP Awards
Upcoming Early Childhood Trainings
Aleyna Cuttlers Participated in National 4-H Congress
4-H Horse Judging Team at Nationals
Meet 2021–22 4-H Council
Meet 2021–22 4-H Teen Council
Hear of 4-H Volunteer Award: Sherry Kubicek
Hear of 4-H Volunteer Award: Angie Root
4th & 5th Grade Fun Night, March 4
Rabbit Show, March 19
UNL Chick Days, March 26
Bucket Calf Workshop, March 27
Dressage Schooling …
Effect Of Workers Density On Insect Pest Incidence And Colony Development Of Bumblebees, Bombus Terrestris (L.) (Hymenoptera: Apidae), Marium Fatima, Asim Gulzar, Munir Ahmed, Farid Asif Shaheen, Muhammad Tariq, Tariq Mukhtar
Effect Of Workers Density On Insect Pest Incidence And Colony Development Of Bumblebees, Bombus Terrestris (L.) (Hymenoptera: Apidae), Marium Fatima, Asim Gulzar, Munir Ahmed, Farid Asif Shaheen, Muhammad Tariq, Tariq Mukhtar
The Philippine Agricultural Scientist
Insect pollination improves essential nutrients and qualities of pollinating plants. Approximately 90% of flowering plants and 35% of crops require insect pollination. Bees play a vital role in pollination in natural and agricultural systems. Managed bees have extensively been used for pollination. Unfortunately, the native bee population has been waning globally. Commercial bee-rearing experiences different rearing problems i.e. food, environment, and spatial conditions within colonies. In this research, the impact of different densities of workers within colonies of Bombus terrestris L. was observed on colony development and pest incidence. Different worker densities i.e. 60-70, 80-90,110-120 and 140-150, respectively, were maintained …
Insecticide Resistance In Aedes Aegypti Varies Seasonally And Geographically In Texas/Mexico Border Cities, Heather Hernandez, Flor A. Martinez, Christopher Vitek
Insecticide Resistance In Aedes Aegypti Varies Seasonally And Geographically In Texas/Mexico Border Cities, Heather Hernandez, Flor A. Martinez, Christopher Vitek
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
Insecticide use is the primary method of attempting to reduce or control the spread of mosquito-borne diseases. Insecticide resistance is a major concern as resistance will limit the efficacy of vector-control efforts. The lower Rio Grande Valley region of South Texas has had autochthonous transmission of multiple mosquito-borne diseases including those caused by dengue virus, chikungunya virus, and Zika virus. However, the current status of mosquito resistance to commonly used pesticides in this region is unknown. In this study, we collected field samples from multiple municipalities in South Texas and assessed resistance using the Centers for Disease Control and Prevention …
Host Plant-Based Artificial Diets Enhance Development, Survival And Fecundity Of The Edible Long-Horned Grasshopper Ruspolia Differens (Orthoptera: Tettigoniidae), Alfonce Leonard, James P. Egonyu, Chrysantus M. Tanga, Samuel Kyamanywa, Sunday Ekesi, Fathiya M. Khamis, Sevgan Subramanian
Host Plant-Based Artificial Diets Enhance Development, Survival And Fecundity Of The Edible Long-Horned Grasshopper Ruspolia Differens (Orthoptera: Tettigoniidae), Alfonce Leonard, James P. Egonyu, Chrysantus M. Tanga, Samuel Kyamanywa, Sunday Ekesi, Fathiya M. Khamis, Sevgan Subramanian
All Peer-Reviewed Publications
Wild swarms of the long-horned grasshoppers Ruspolia differens (Serville) which are widely harvested for consumption and sale in Africa are seasonal and unsustainable, hence the need for innovative ways of artificially producing the insects. We investigated the development, survival, and reproduction of R. differens in the laboratory on diets mixed with host plants [Digitaria gayana Kunth, Cynodon dactylon (L.) and Megathyrsus maximus Jacq (Poales: Poaceae); Ageratum conyzoides L. (Asterales: Asteraceae)] identified from guts of their wild conspecifics with a view to developing a suitable diet for artificial mass rearing of the edible insect. A standard diet comprising ground black soldier …
Consumers’ Perception Towards Eggs From Laying Hens Fed Commercial Black Soldier Fly (Hermetia Illucens) Larvae Meal-Based Feeds, Colleta Nabwile Khaemba, Michael Mukembo Kidoido, George Owuor, Chrysantus Mbi Tanga
Consumers’ Perception Towards Eggs From Laying Hens Fed Commercial Black Soldier Fly (Hermetia Illucens) Larvae Meal-Based Feeds, Colleta Nabwile Khaemba, Michael Mukembo Kidoido, George Owuor, Chrysantus Mbi Tanga
All Peer-Reviewed Publications
Increased demand for animal protein has motivated the search for more efficient livestock production systems. In recent years, there has been growing interest to incorporate insect meal as an alternative source of protein to fish/soybean meal in chicken feed for improved nutrition, sustainability, and animal welfare benefits. Black soldier fly larval (BSFL)-based feeds has been shown to increase egg production in a cost-effective manner. However, poultry consumers perception towards the consumption of eggs from layers fed diet integrated with BSFL-based meal have received limited research attention. This study evaluates consumers’ perception towards eggs from hens fed BSFL-based diets and socioeconomic …
Insight On Fruit Fly Ipm Technology Uptake And Barriers To Scaling In Africa, Saliou Niassy, Beatrice Murithii, Evanson R. Omuse, Emily Kimathi, Henri Tonnang, Shepard Ndlela, Samira Mohamed, Sunday Ekesi
Insight On Fruit Fly Ipm Technology Uptake And Barriers To Scaling In Africa, Saliou Niassy, Beatrice Murithii, Evanson R. Omuse, Emily Kimathi, Henri Tonnang, Shepard Ndlela, Samira Mohamed, Sunday Ekesi
All Peer-Reviewed Publications
Tephritid fruit flies are considered one of the world’s most notorious pests of horticultural crops, causing extensive direct and indirect damage. Over the past two decades, a comprehensive, integrated pest management (IPM) package for the management of a plethora of fruit fly pests, includ-ing Bactrocera dorsalis, B. latifrons, B. zonata, Ceratitis cosyra, C. rosa, C. fasciventris, C. quilici, C. capitata, Dacus spp. and Zeugodacus cucurbitae, has been developed, disseminated and promoted among horticultural growers in Africa. To estimate the numbers of beneficiaries reached by the fruit fly IPM technology and the barriers to technology uptake, we interviewed 290 experts in …
Non-Native Non-Apis Bees Are More Abundant On Non-Native Versus Native Flowering Woody Landscape Plants, Daniel A. Potter, Bernadette M. Mach
Non-Native Non-Apis Bees Are More Abundant On Non-Native Versus Native Flowering Woody Landscape Plants, Daniel A. Potter, Bernadette M. Mach
Entomology Faculty Publications
Urban ecosystems can support diverse communities of wild native bees. Because bloom times are conserved by geographic origin, incorporating some non-invasive non-native plants in urban landscapes can extend the flowering season and help support bees and other pollinators during periods when floral resources from native plants are limiting. A caveat, though, is the possibility that non-native plants might disproportionately host non-native, potentially invasive bee species. We tested that hypothesis by identifying all non-native bees among 11,275 total bees previously collected from 45 species of flowering woody landscape plants across 213 urban sites. Honey bees, Apis mellifera L., accounted for 22% …