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Articles 61 - 90 of 356
Full-Text Articles in Entomology
Historical Population Increases And Related Inciting Factors Of Agrilus Anxius, Agrilus Bilineatus, And Agrilus Granulatus Liragus (Coleoptera: Buprestidae) In The Lake States (Michigan, Minnesota, And Wisconsin), Robert A. Haack, Toby Petrice
Historical Population Increases And Related Inciting Factors Of Agrilus Anxius, Agrilus Bilineatus, And Agrilus Granulatus Liragus (Coleoptera: Buprestidae) In The Lake States (Michigan, Minnesota, And Wisconsin), Robert A. Haack, Toby Petrice
The Great Lakes Entomologist
Three native species of tree-infesting Agrilus have regularly reached outbreak levels in the Lake States (Michigan, Minnesota, and Wisconsin), including A. anxius Gory (bronze birch borer), A. bilineatus (Weber) (twolined chestnut borer), and A. granulatus liragus Barter & Brown (bronze poplar borer). The main host trees for these Agrilus are species of Betula for A. anxius, Castanea and Quercus for A. bilineatus, and Populus for A. granulatus liragus. Based on 197 annual forest health reports for Michigan (1950–2017, 66 years), Minnesota (1950–2017, 64 years), and Wisconsin (1951–2017, 67 years), A. bilineatus was the most often reported Agrilus …
First Records Of The Adventive Pseudoanthidium Nanum (Mocsáry) (Hymenoptera: Megachilidae) In Illinois And Minnesota, With Notes On Its Identification And Taxonomy, Zachary M. Portman, Skyler J. Burrows, Terry Griswold, Mike Arduser, Aaron J. Irber, Rebecca K. Tonietto, Daniel P. Cariveau
First Records Of The Adventive Pseudoanthidium Nanum (Mocsáry) (Hymenoptera: Megachilidae) In Illinois And Minnesota, With Notes On Its Identification And Taxonomy, Zachary M. Portman, Skyler J. Burrows, Terry Griswold, Mike Arduser, Aaron J. Irber, Rebecca K. Tonietto, Daniel P. Cariveau
The Great Lakes Entomologist
We report the first records of Pseudoanthidium nanum (Mocsáry) in Illinois and Minnesota in 2016 and 2018, respectively. This represents a relatively rapid expansion since P. nanum was first detected in New Jersey in 2008. In order to help monitor the spread of this bee, we provide information on how to identify P. nanum and provide images of the general habitus, diagnostic features, and male genitalia. Finally, we confirm the taxonomic identity of P. nanum in the United States and highlight potential impacts on native anthidiines.
The Discovery Of Trissolcus Japonicus (Hymenoptera: Scelionidae) In Michigan, Benjamin J. M. Jarrett, John Pote, Elijah Talamas, Larry Gut, Marianna Szucs
The Discovery Of Trissolcus Japonicus (Hymenoptera: Scelionidae) In Michigan, Benjamin J. M. Jarrett, John Pote, Elijah Talamas, Larry Gut, Marianna Szucs
The Great Lakes Entomologist
The invasive brown marmorated stink bug, Halyomorpha halys (Stål), is a pest of growing economic importance in the United States, the control of which currently relies on pesticide applications. Biological control could provide sustainable and long-term control but classical biological control agents have not yet been approved. Adventive populations of a potential biological control agents, the Samurai wasp, Trissolcus japonicus (Ashmead), have been found in the United States, first in Maryland in 2014, expanding its range west to Ohio by 2017. Trissolcus japonicus is a highly effective parasitoid of H. halys eggs, but its redistribution and augmentative releases are restricted …
Epeoloides Pilosulus (Cresson) Rediscovered In Michigan, With Notes On The Distribution And Status Of Its Macropis Hosts., Thomas J. Wood, Michael F. Killewald, Kelsey K. Graham, Jason Gibbs, Rufus Isaacs
Epeoloides Pilosulus (Cresson) Rediscovered In Michigan, With Notes On The Distribution And Status Of Its Macropis Hosts., Thomas J. Wood, Michael F. Killewald, Kelsey K. Graham, Jason Gibbs, Rufus Isaacs
The Great Lakes Entomologist
Epeoloides pilosulus (Cresson 1878) is one of the rarest bees in North America with only a handful of records since 1960. The last collection in Michigan was made in 1944. Epeoloides pilosulus is a brood parasite of Macropis bees, which until recently had not been collected in Michigan for several decades. Bee surveys in Midland County, Michigan have led to the rediscovery of E. pilosulus in this state – the first record in 74 years. Michigan becomes the fourth state where E. pilosulus has been rediscovered after Connecticut in 2006, New York in 2014 and Maine in 2016, and the …
Tgle Vol. 52 Nos. 1 & 2 Full Issue
Tgle Vol. 52 Nos. 1 & 2 Full Issue
The Great Lakes Entomologist
Full issue for TGLE Vol. 52 Nos. 1 & 2
Transcriptome And Gene Expression Analysis Of Three Developmental Stages Of The Coffee Berry Borer, Hypothenemus Hampei, Daniel D. Noriega, Paula L. Arias, Helena R. Barbosa, Fabricio B.M. Arraes, Gustavo A. Ossa, Bernardo Villegas, Roberta R. Coelho, Erika V. S. Albuquerque, Roberto C. Togawa, Priscila Grynberg, Haichuan Wang, Ana M. Vélez, Jorge W. Arboleda, Maria F. Grossi-De-Sa, Maria C.M. Silva, Arnubio Valencia-Jiménez
Transcriptome And Gene Expression Analysis Of Three Developmental Stages Of The Coffee Berry Borer, Hypothenemus Hampei, Daniel D. Noriega, Paula L. Arias, Helena R. Barbosa, Fabricio B.M. Arraes, Gustavo A. Ossa, Bernardo Villegas, Roberta R. Coelho, Erika V. S. Albuquerque, Roberto C. Togawa, Priscila Grynberg, Haichuan Wang, Ana M. Vélez, Jorge W. Arboleda, Maria F. Grossi-De-Sa, Maria C.M. Silva, Arnubio Valencia-Jiménez
Department of Entomology: Faculty Publications
Coffee production is a global industry valued at approximately 173 billion US dollars. One of the main challenges facing coffee production is the management of the coffee berry borer (CBB), Hypothenemus hampei, which is considered the primary arthropod pest of coffee worldwide. Current control strategies are inefficient for CBB management. Although biotechnological alternatives, including RNA interference (RNAi), have been proposed in recent years to control insect pests, characterizing the genetics of the target pest is essential for the successful application of these emerging technologies. In this study, we employed RNA-seq to obtain the transcriptome of three developmental stages of the …
Comparative Genomic Analysis Of Six Glossina Genomes, Vectors Of African Trypanosomes, Geoffrey M. Attardo, Adly M.M. Abd-Alla, Alvaro Acosta-Serrano, James E. Allen, Rosemary Bateta, Joshua B. Benoit, Kostas Bourtzis, Jelle Caers, Guy Caljon, Mikkel B. Christensen, David W. Farrow, Markus Friedrich, Aurélie Hua-Van, Emily C. Jennings, Denis M. Larkin, Daniel Lawson, Michael J. Lehane, Vasileios P. Lenis, Ernesto Lowy-Gallego, Rosaline W. Macharia, Anna R. Malacrida, Heather G. Marco, Daniel Masiga, Gareth L. Maslen, Irina Matetovici, Richard P. Meisel, Irene Meki, Veronika Michalkova
Comparative Genomic Analysis Of Six Glossina Genomes, Vectors Of African Trypanosomes, Geoffrey M. Attardo, Adly M.M. Abd-Alla, Alvaro Acosta-Serrano, James E. Allen, Rosemary Bateta, Joshua B. Benoit, Kostas Bourtzis, Jelle Caers, Guy Caljon, Mikkel B. Christensen, David W. Farrow, Markus Friedrich, Aurélie Hua-Van, Emily C. Jennings, Denis M. Larkin, Daniel Lawson, Michael J. Lehane, Vasileios P. Lenis, Ernesto Lowy-Gallego, Rosaline W. Macharia, Anna R. Malacrida, Heather G. Marco, Daniel Masiga, Gareth L. Maslen, Irina Matetovici, Richard P. Meisel, Irene Meki, Veronika Michalkova
All Peer-Reviewed Publications
Background: Tsetse flies (Glossina sp.) are the vectors of human and animal trypanosomiasis throughout sub-Saharan Africa. Tsetse flies are distinguished from other Diptera by unique adaptations, including lactation and the birthing of live young (obligate viviparity), a vertebrate blood-specific diet by both sexes, and obligate bacterial symbiosis. This work describes the comparative analysis of six Glossina genomes representing three sub-genera: Morsitans (G. morsitans morsitans, G. pallidipes, G. austeni), Palpalis (G. palpalis, G. fuscipes), and Fusca (G. brevipalpis) which represent different habitats, host preferences, and vectorial capacity. Results: Genomic analyses validate established evolutionary relationships and sub-genera. Syntenic analysis of Glossina relative …
Nebline, September 2019
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Read for Resilience Program Helps Young Children Cope After a Disaster
Breakfast — Don’t Leave Home Without It!
Recipe of the Month
Grazing Calves on Annual Forages
Sheet Composting Requires No Turning
Composting Demonstrations
Prepared, Not Scared. Be Ready for Disasters
Plant Asters for Fall Color
Garden Guide: Things to Do This Month
The Lowdown on Lyme Disease
Heart of 4-H Volunteer Award: Brenda Nepper
4-H Teen Council Invites New Members
Support 4-H by Dining at Chipotle on O Street, Sept. 16
New Horticulture 4-H Club Meeting, Sept. 19
4-H Golf Tournament Fundraiser, Sept. 29
Interested in Joining 4-H? Come …
The Evolution Of Spinosad Resistance In Colorado Potato Beetles (Leptinotarsa Decemlineata), Coby Michael Klein
The Evolution Of Spinosad Resistance In Colorado Potato Beetles (Leptinotarsa Decemlineata), Coby Michael Klein
Dissertations, Theses, and Capstone Projects
Colorado potato beetles (Leptinotarsa decemlineata) are a major pest of cultivated potato plants worldwide. They are well-known for their ability to rapidly evolve resistance to all major classes of pesticides. Defoliation of potato plants by L. decemlineata can reduce potato yields by a considerable margin. The damage done by resistant beetles is steep and much research is focused on developing new chemical controls, especially those derived from naturally occurring compounds. Spinosad is a relatively new natural product insecticide, introduced approximately a decade ago, suitable for use in organic farming. Potato beetles on Long Island, NY developed very strong …
Integrating Temperature-Dependent Life Table Data Into Insect Life Cycle Model For Predicting The Potential Distribution Of Scapsipedus Icipe Hugel & Tanga, Magara H.J. Otieno, Monica A. Ayieko, Saliou Niassy, Daisy Salifu, Azrag G.A. Abdelmutalab, Khamis M. Fathiya, Sevgan Subramanian, Komi K.M. Fiaboe, Nana Roos, Sunday Ekesi, Chrysantus M. Tanga
Integrating Temperature-Dependent Life Table Data Into Insect Life Cycle Model For Predicting The Potential Distribution Of Scapsipedus Icipe Hugel & Tanga, Magara H.J. Otieno, Monica A. Ayieko, Saliou Niassy, Daisy Salifu, Azrag G.A. Abdelmutalab, Khamis M. Fathiya, Sevgan Subramanian, Komi K.M. Fiaboe, Nana Roos, Sunday Ekesi, Chrysantus M. Tanga
All Peer-Reviewed Publications
Scapsipedus icipe Hugel and Tanga (Orthoptera: Gryllidae) is a newly described edible cricket species. Although, there is substantial interest in mass production of S. icipe for human food and animal feed, no information exists on the impact of temperature on their bionomics. Temperature-dependent development, survival, reproductive and life table parameters of S. icipe was generated and integrated into advanced Insect Life Cycle Modeling software to describe relative S. icipe population increase and spatial spread based on nine constant temperature conditions. We examined model predictions and implications for S. icipe potential distribution in Africa under current and future climate. These regions …
Using Sibship Reconstructions To Understand The Relationship Between Larval Habitat Productivity And Oviposition Behaviour In Kenyan Anopheles Arabiensis, Joel O. Odero, Ulrike Fillinger, Emily J. Rippon, Daniel K. Masiga, David Weetman
Using Sibship Reconstructions To Understand The Relationship Between Larval Habitat Productivity And Oviposition Behaviour In Kenyan Anopheles Arabiensis, Joel O. Odero, Ulrike Fillinger, Emily J. Rippon, Daniel K. Masiga, David Weetman
All Peer-Reviewed Publications
Background: Strategies for combatting residual malaria by targeting vectors outdoors are gaining importance as the limitations of primary indoor interventions are reached. Strategies to target ovipositing females or her offspring are broadly applicable because all mosquitoes require aquatic habitats for immature development irrespective of their biting or resting preferences. Oviposition site selection by gravid females is frequently studied by counting early instar larvae in habitats; an approach which is valid only if the number of larvae correlates with the number of females laying eggs. This hypothesis was tested against the alternative, that a higher abundance of larvae results from improved …
Keragaman Dan Kelimpahan Arthropoda Pada Tajuk Tanaman Cabai Merah Keriting (Capsicum Annuum L.) Varietas Tm 999 Yang Diberi Aplikasi Insektisida Klorantraniliprol 35%, Sudarjat, Annisa Handayani, Siska Rasiska, Wawan Kurniawan
Keragaman Dan Kelimpahan Arthropoda Pada Tajuk Tanaman Cabai Merah Keriting (Capsicum Annuum L.) Varietas Tm 999 Yang Diberi Aplikasi Insektisida Klorantraniliprol 35%, Sudarjat, Annisa Handayani, Siska Rasiska, Wawan Kurniawan
Jurnal Kultivasi
Penelitian ini bertujuan untuk mengetahui keragaman dan kelimpahan arthropoda yang terdapat pada tajuk tanaman cabai yang diberi aplikasi insektisida klorantraniliprol 35%. Metode yang digunakan adalah metode eksperimen dengan rancangan acak kelompok dengan enam perlakuan dosis insektisida klorantraniliprol 35%. Hasil dari penelitian ini adalah didapatkan keragaman pada pengamatan langsung sebanyak 5 ordo, 7 famili dan 7 spesies untuk herbivor, 3 ordo, 4 famili dan 4 spesies untuk predator, serta 1 ordo, 1 famili dan 1 spesies untuk serangga netral. Keragaman yang didapatkan pada pemasangan perangkap kuning yaitu 4 ordo, 4 famili dan 4 spesies untuk herbivor, untuk serangga netral terdiri dari …
Integrated Pest Management In The Academic Small Greenhouse Setting: A Case Study Using Solanum Spp. (Solanaceae)., Daniel S. Hayes, Ingrid E. Jordon-Thaden, Jason T. Cantley, Angela J. Mcdonnell, Christopher T. Martine
Integrated Pest Management In The Academic Small Greenhouse Setting: A Case Study Using Solanum Spp. (Solanaceae)., Daniel S. Hayes, Ingrid E. Jordon-Thaden, Jason T. Cantley, Angela J. Mcdonnell, Christopher T. Martine
Faculty Journal Articles
Premise
Botanical faculty and staff at academic institutions are often tasked with establishing and/or caring for plant collections held in small greenhouse facilities. Once plants are in place, an especially acute challenge is managing plant pest/pathogen populations. Integrated pest management (IPM) approaches are an excellent option, but few examples exist in the literature of successful programs that have been developed in academic small greenhouse settings.
Methods and Results
Over several years, we developed an IPM program for two small research greenhouses on the campus of a primarily undergraduate institution where hundreds of plants have been grown for studies in the …
Sown And Unsown Floral Resources Both Support Bee Abundance, Pryce Johnson, Kenneth Elgersma, Ai Wen
Sown And Unsown Floral Resources Both Support Bee Abundance, Pryce Johnson, Kenneth Elgersma, Ai Wen
Summer Undergraduate Research Program (SURP) Symposium
The recent decline in native bee populations across the Midwest has been linked to the drastic decrease of prairie habitats and pollinator floral resources. Since the agricultural revolution, grassland areas have been removed and replaced with row crops to meet the needs of expanding markets, including the production of ethanol. In response to the loss of these (and other) essential pollinators, the Conservation Reserve Program administered by the USDA initiated a pollinator habitat initiative called CP-42. Despite efforts to assess the program's success, there is still much that needs to be learned about restoring prairie habitats for bees. With CP-42, …
Assessing Cp - 42 Habitat Value For Bees Using The Floral Resource Index, Allison Eagan, Gabrielle Brown, Ai Wen
Assessing Cp - 42 Habitat Value For Bees Using The Floral Resource Index, Allison Eagan, Gabrielle Brown, Ai Wen
Summer Undergraduate Research Program (SURP) Symposium
Prairies once dominated 85% of Iowa. Sadly, that large portion of native prairie has been drastically reduced to 0.01% because of agricultural expansion. Habitat loss is one of the main contributors to the massive decline in the native bee population and its biodiversity. Native pollinators are essential to the ecosystem and play a large role in the pollination of row crops. The Conservation Reserve Program (CRP), administered by the US Department of Agriculture Farm Service Agency, launched the CP-42 program specifically as a Pollinator Habitat Initiative for forbs and grasses to be planted to increase pollinator habitat. However, no methods …
Local And Landscape Effects On Butterfly Abundance In Cp-42 Plantings, Emma Simpson, Kate Sinnott, Mark Myers
Local And Landscape Effects On Butterfly Abundance In Cp-42 Plantings, Emma Simpson, Kate Sinnott, Mark Myers
Summer Undergraduate Research Program (SURP) Symposium
The conversion of grassland habitats and intensification of row crop agriculture over the last several decades have driven declines in native pollinator populations throughout the Midwestern USA. These declines in native bee and butterfly abundance have negative ecosystem consequences due to these insects’ important ecological roles as pollinators of vegetable crops and other plant life. The United States Department of Agriculture’s Conservation Reserve Program Pollinator Habitat Initiative (CP-42) aims to conserve native pollinators by increasing pollinator habitat throughout the United States. However, since the program’s inception in 2011, there has been little monitoring of its effectiveness and no documentation of …
Bacteria-Mediated Modification Of Insecticide Toxicity In The Yellow Fever Mosquito, Aedes Aegypti, Sara S. Scates, Scott T. O'Neal, Troy D. Anderson
Bacteria-Mediated Modification Of Insecticide Toxicity In The Yellow Fever Mosquito, Aedes Aegypti, Sara S. Scates, Scott T. O'Neal, Troy D. Anderson
Department of Entomology: Faculty Publications
The incidence of mosquito-borne disease poses a significant threat to human and animal health throughout the world, with effective chemical control interventions limited by widespread insecticide resistance. Recent evidence suggests that gut bacteria of mosquitoes, known to be essential in nutritional homeostasis and pathogen defense, may also play a significant role in facilitating insecticide resistance. This study investigated the extent to which bacteria contribute to the general esterase and cytochrome P450 monooxygenase (P450)-mediated detoxification of the insecticides propoxur and naled, as well as the insecticidal activity of these chemistries to the yellow fever mosquito, Aedes aegypti. Experiments conducted using …
Nebline, August 2019
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Kids Eat Right Month
Food Safety Tips for Electric Multi-Cookers
Recipe of the Month
Soybean Management Field Days
Landlord–Tenant Cash Rent Workshop, Aug. 21
Fall is Best for Control of Tough Weeds
Free Water Screening for Nitrates
Include Pets in Your Emergency Plan
Going Batty: Bugs on Bats
Make Your Yard a Greener Place
Garden Guide: Things to Do This Month
Tips for a Fun and Educational Day at the Fair
Upcoming Early Childhood Trainings
Heart of 4-H Volunteer Award: Susan Holland
4-H’ers Test Family and Consumer Science and Entrepreneurship Skills at Life Challenge
4-H’ers Test Their Knowledge of Animals …
Hexapod Herald - Vol. 31, No. 3, August 2019
Hexapod Herald - Vol. 31, No. 3, August 2019
Hexapod Herald and Other Entomology Department Newsletters
Welcome: Dr. Kyle Koch, Dr. Débora Montezano, Dr. Lise Pingault, Dr. Prince Zogli, Dr. Tobiasz Druciarek, Zuguo Guo, Vilma Montenegro, Sabrina Ongaratto, Emily Reinders, Otávio Silva Xavier, plus Online M.S. students for Fall 2019:
Faculty News: Dr. Jeff Bradshaw, Dr. Louise Lynch-O’Brien, Dr. Matthew Smart, Dr. Ana Vélez, Dr. Judy Wu-Smart
Publications
Congratulations
Student News
Grants
Inaugural 10 week NIFA-funded Beneficial Insects Research and Extension Ex-periences for Undergraduates (REEU) program
Insects and Murder: educational murder mystery game created by graduate student Justine LaViolette.
The Mayfly Newsletter, Donna J. Giberson
The Mayfly Newsletter, Donna J. Giberson
The Mayfly Newsletter
The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.
The Functional Conservation Of Frazzled In Insects, Benjamin Wadsworth
The Functional Conservation Of Frazzled In Insects, Benjamin Wadsworth
Graduate Theses and Dissertations
Axons in the developing embryo receive and react to signals that direct their growth to reach target tissues at specified locations. The signal pathways that direct midline crossing of axons during embryonic development have been comprehensively examined in the past years using the Drosophila ventral nerve cord or the spinal cord as a model system. A number of these signaling mechanisms are conserved, however disparities have been found between species in general strategy or the molecular signals controlling the response of axons to guidance cues.
The Netrin-Frazzled pathway has been shown to aid in midline crossing of axons in the …
Dual Biological Control: Characterization Of Fungi And Bacteria To Control Granary Weevil And Fungal Pathogens Of Stored Grain, Gülçin Ercan
Dual Biological Control: Characterization Of Fungi And Bacteria To Control Granary Weevil And Fungal Pathogens Of Stored Grain, Gülçin Ercan
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Cereals are main food sources for humans and animals. However, during storage, cereal grains can be infested by insects and fungi. One of the most important insect storage pests is Sitophilus granarius (L., Coleoptera: Curculionidae). Adults and larvae can cause serious grain losses. In addition to insect pests, fungal pathogens may also invade the grain and cause economic loss, including contamination with mycotoxins, which threaten mammal health by causing serious disease. The most common mycotoxigenic grain fungi are species that belong to the genera Fusarium, Aspergillus and Penicillium. Currently, the most commonly used management strategies for insect and …
Promoting Bee Communities Through Habitat Enhancements On Public And Private Lands In Nebraska, Kayla A. Mollet
Promoting Bee Communities Through Habitat Enhancements On Public And Private Lands In Nebraska, Kayla A. Mollet
Department of Entomology: Dissertations, Theses, and Student Research
Wild and managed bees are the most effective pollinators, accounting for about 80% of the pollination of flowering plants and 75% of fruits, nuts, and vegetables in the United States (USDA, 2019; USFWS, 2019). An estimated 4,000 species of bees reside in North America, the majority of which are wild and unmanaged. Wild bee communities are critical for maintaining healthy ecosystems, as they sustain native flora that provides soil stability and habitat for other wildlife. In a changing landscape, floral enhancements on privately and publicly-owned lands may have great impact for improving habitat for pollinators across the United States. Planting …
Temperature Influence On Insecticide Resistance In Aedes Aegypti And Aedes Albopictus Mosquitoes From South Texas, Wendy Soledad Salinas
Temperature Influence On Insecticide Resistance In Aedes Aegypti And Aedes Albopictus Mosquitoes From South Texas, Wendy Soledad Salinas
Theses and Dissertations
Aedes aegypti and Aedes albopictus are vectors for several emerging arboviruses including Zika, chikungunya and dengue. Both mosquitoes are found along the Rio Grande River in South Texas, along the border between Mexico and the United States of America. These mosquito species typically reside near human settlements. A preventative measure public health official use to help halt the spread of diseases is by controlling vector population with the use of insecticides, but as temperature vary, and with the constant exposure to commonly used insecticides, mosquitoes from South Texas may be developing a resistance to the insecticides. Resistance to insecticides may …
Agro-Ecological Options For Fall Armyworm (Spodoptera Frugiperda Je Smith)Management: Providing Low-Cost, Smallholder Friendly Solutions To An Invasive Pest, Rhett D. Harrison, Christian Thierfelder, Frédéric Baudron, Peter Chinwada, Charles Midega, Urs Schaffner, Johnnie Van Den Berg
Agro-Ecological Options For Fall Armyworm (Spodoptera Frugiperda Je Smith)Management: Providing Low-Cost, Smallholder Friendly Solutions To An Invasive Pest, Rhett D. Harrison, Christian Thierfelder, Frédéric Baudron, Peter Chinwada, Charles Midega, Urs Schaffner, Johnnie Van Den Berg
All Peer-Reviewed Publications
Fall armyworm (FAW), a voracious agricultural pest native to North and South America, was first detected on the African continent in 2016 and has subsequently spread throughout the continent and across Asia. It has been predicted that FAW could cause up to $US13 billion per annum in crop losses throughout sub-Saharan Africa, thereby threatening the livelihoods of millions of poor farmers. In their haste to respond to FAW governments may promote indiscriminate use of chemical pesticides which, aside from human health and environmental risks, could undermine smallholder pest management strategies that depend to a large degree on natural enemies. Agro-ecological …
Experimental Feeding Studies With Crickets And Locusts On The Use Of Feed Mixtures Composed Of Storable Feed Materials Commonly Used In Livestock Production, P. Straub, C. M. Tanga, I. Osuga, W. Windisch, S. Subramanian
Experimental Feeding Studies With Crickets And Locusts On The Use Of Feed Mixtures Composed Of Storable Feed Materials Commonly Used In Livestock Production, P. Straub, C. M. Tanga, I. Osuga, W. Windisch, S. Subramanian
All Peer-Reviewed Publications
Insects such as the Mediterranean field cricket, Gryllus bimaculatus and the Desert locust, Schistocerca gregaria, are emerging as potential sources of human food and feed for livestock. High nutritive value and efficient feed conversion make them attractive for commercial production as novel livestock, but these properties strongly vary with the insects´ diet. Current mass-rearing protocols are based on fresh, non-storable feed materials. This requires constant supply and makes the systems sensitive to fluctuations regarding nutritional quality and safety. Hence there is a need to find storable, readily available feeds. Therefore, experimental diets were composed from the five different feed materials, …
Seed Predation By Owyhee Harvester Ants And The Potential Of Seed Introductions In Recovery Efforts For Slickspot Peppergrass, Jennifer A. Brown
Seed Predation By Owyhee Harvester Ants And The Potential Of Seed Introductions In Recovery Efforts For Slickspot Peppergrass, Jennifer A. Brown
Boise State University Theses and Dissertations
Slickspot peppergrass (Lepidium papilliferum) is a rare plant endemic to the sagebrush-steppe habitat in southwestern Idaho. Within sagebrush-steppe, the plant is restricted to microsites known as “slick spots”– shallow depressions of soil characterized by distinct clay layers and surface water retention that is higher than that of surrounding areas. Having one of the highest extirpation rates among rare plant taxa in Idaho, and considering its unique habitat requirements, limited range, and declining numbers, land managers and conservationists have voiced concern regarding the species’ long-term viability. While range-wide declines in slickspot peppergrass have been attributed largely to the loss …
Determining The Presence Or Absence Of Euscepes Postfasciatus In Haiti And Use Of Molecular Markers For The Distinction Of Cylas Formicarius Elangantulus Biotypes, Marie Rachele Lexidort
Determining The Presence Or Absence Of Euscepes Postfasciatus In Haiti And Use Of Molecular Markers For The Distinction Of Cylas Formicarius Elangantulus Biotypes, Marie Rachele Lexidort
LSU Master's Theses
Cylas formicarius elegantulus (Summers) and Euscepes postfaciatus (Fairmaire) are the most destructive sweetpotato weevils in the Caribean Basin. However, damage occurring in sweetpotato production in Haiti is attributed to C. formicarius (S), since it is known to be the most prevalent species while, conflicting information is available pertaining to the occurrence of the E. postfaciatus (F). This study was conducted in the summer of 2018 to determine the presence or absence of E. postfaciatus (F) in Haiti. 98 weevil samples from field (70% ) and infested sweetpotato roots from field and regional markets were collected (30%) in the most relevant …