Open Access. Powered by Scholars. Published by Universities.®

Entomology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Pest management

Discipline
Institution
Publication Year
Publication
Publication Type
File Type

Articles 31 - 60 of 75

Full-Text Articles in Entomology

De Novo Whole Genome Assembly Of The Swede Midge (Contarinia Nasturtii), A Specialist Of Brassicaceae, Using Linked-Read Sequencing, Boyd A. Mori, Cathy Coutu, Yolanda H. Chen, Erin O. Campbell, Julian R. Dupuis, Martin A. Erlandson, Dwayne D. Hegedus Feb 2021

De Novo Whole Genome Assembly Of The Swede Midge (Contarinia Nasturtii), A Specialist Of Brassicaceae, Using Linked-Read Sequencing, Boyd A. Mori, Cathy Coutu, Yolanda H. Chen, Erin O. Campbell, Julian R. Dupuis, Martin A. Erlandson, Dwayne D. Hegedus

Entomology Faculty Publications

The swede midge, Contarinia nasturtii, is a cecidomyiid fly that feeds specifically on plants within the Brassicaceae. Plants in this family employ a glucosinolate-myrosinase defense system, which can be highly toxic to non-specialist feeders. Feeding by C. nasturtii larvae induces gall formation, which can cause substantial yield losses thus making it a significant agricultural pest. A lack of genomic resources, in particular a reference genome, has limited deciphering the mechanisms underlying glucosinolate tolerance in C. nasturtii, which is of particular importance for managing this species. Here, we present an annotated, scaffolded reference genome of C. nasturtii using linked-read …


The Probability Of Spotted Lanternfly, Lycorma Delicatula (Hemiptera: Fulgoridae), Escape Differs Among Life Stages And Between Two Trapping Techniques Commonly Used By Landowners, Sticky Bands And Duct Tape., Matthew Desko, Carolyne Schiebel, Samantha Silverman, Jessica Bickel, Karen Felton, Jennifer L. Chandler Feb 2021

The Probability Of Spotted Lanternfly, Lycorma Delicatula (Hemiptera: Fulgoridae), Escape Differs Among Life Stages And Between Two Trapping Techniques Commonly Used By Landowners, Sticky Bands And Duct Tape., Matthew Desko, Carolyne Schiebel, Samantha Silverman, Jessica Bickel, Karen Felton, Jennifer L. Chandler

The Great Lakes Entomologist

The invasive Lycorma delicatula (White) was first identified in Pennsylvania, U.S.A. in 2014, and has since increased its range to several Eastern states. Lycorma delicatula pose a serious threat to many native species, including hardwoods and grapes, and land owners are continually seeking effective traps to control populations. Both commercially-produced Web-Cote brand sticky bands and less expensive duct tape are often used by land owners to trap L. delicatula. However, the probability of escape from these adhesives has not been formally assessed, and almost certainly differs as a function of life stage and type of adhesive used. The purpose …


The Granulate Cutworm (Lepidoptera: Noctuidae): Biological Parameters Under Controlled Conditions, Host Plants, And Distribution In The Americas, Alexandre Specht, Fernando M. S. Dias, Germán San Blas, Vânia F. Roque-Specht, Mirna M. Casagrande, Olaf H. H. Mielke, Débora Goulart Montezano, Izailda Barbosa Santos, Silvana Vieira De Paula Moraes, Thomas E. Hunt, Juaci V. Malaquias, Felipe A. D. Bonfin, Paulo V. M. Vieira Nov 2020

The Granulate Cutworm (Lepidoptera: Noctuidae): Biological Parameters Under Controlled Conditions, Host Plants, And Distribution In The Americas, Alexandre Specht, Fernando M. S. Dias, Germán San Blas, Vânia F. Roque-Specht, Mirna M. Casagrande, Olaf H. H. Mielke, Débora Goulart Montezano, Izailda Barbosa Santos, Silvana Vieira De Paula Moraes, Thomas E. Hunt, Juaci V. Malaquias, Felipe A. D. Bonfin, Paulo V. M. Vieira

Department of Entomology: Faculty Publications

Feltia subterranea (Fabricius), commonly known as the granulate cutworm, is a common species of owlet moths (Noctuidae) of major agricultural importance, widely distributed in Nearctic and Neotropical regions. This study was conducted to determine the species biological parameters, gather information about its larval host plants, and assess the agricultural significance of this species in the Americas. The viability of the egg, larval, pupal stages, and prepupal period was 98, 98, and 100%, respectively, under laboratory conditions. The average duration of the egg, larval, pupal stages, and prepupal period was 3, 17, 4, and 13 d, respectively. All laboratory-reared larvae developed …


Do Mosquito Pesticides Harm Their Natural Enemies? Ecological Impacts And Non-Target Effects Of Larvicides On Mosquito Predators, Joseph Nelsen Aug 2020

Do Mosquito Pesticides Harm Their Natural Enemies? Ecological Impacts And Non-Target Effects Of Larvicides On Mosquito Predators, Joseph Nelsen

Master's Theses

Larvicides are chemicals used to kill juvenile mosquitoes. When applied to an area, other aquatic organisms are exposed to these chemicals. The removal or impairment of top insect predators could be beneficial to mosquito populations once harmful pesticide levels dissipate. Two common larvicides were examined: growth regulators (IGRs) and surface films (SFs). The goal of this project was to determine if larvicides harm mosquito predators common to southern Mississippi. I surveyed aquatic sites before and after IGR and SF treatments, and then compared changes in insect community structure. Community evenness was lower in SF treated habitats. When analyzing prey taxa …


Insights From Population Genomics To Enhance And Sustain Biological Control Of Insect Pests, Arun Sethuraman, Fredric J. Janzen, David W. Weisrock, John J. Obrycki Jul 2020

Insights From Population Genomics To Enhance And Sustain Biological Control Of Insect Pests, Arun Sethuraman, Fredric J. Janzen, David W. Weisrock, John J. Obrycki

Biology Faculty Publications

Biological control—the use of organisms (e.g., nematodes, arthropods, bacteria, fungi, viruses) for the suppression of insect pest species—is a well-established, ecologically sound and economically profitable tactic for crop protection. This approach has served as a sustainable solution for many insect pest problems for over a century in North America. However, all pest management tactics have associated risks. Specifically, the ecological non-target effects of biological control have been examined in numerous systems. In contrast, the need to understand the short- and long-term evolutionary consequences of human-mediated manipulation of biological control organisms for importation, augmentation and conservation biological control has only recently …


Double-Stranded Rna Technology To Control Insect Pests: Current Status And Challenges, Olivier Christiaens, Steve Whyard, Ana M. Vélez, Guy Smagghe Apr 2020

Double-Stranded Rna Technology To Control Insect Pests: Current Status And Challenges, Olivier Christiaens, Steve Whyard, Ana M. Vélez, Guy Smagghe

Department of Entomology: Faculty Publications

Exploiting the RNA interference (RNAi) gene mechanism to silence essential genes in pest insects, leading to toxic effects, has surfaced as a promising new control strategy in the past decade. While the first commercial RNAi-based products are currently coming to market, the application against a wide range of insect species is still hindered by a number of challenges. In this review, we discuss the current status of these RNAi- based products and the different delivery strategies by which insects can be targeted by the RNAi-triggering double-stranded RNA (dsRNA) molecules. Furthermore, this review also addresses a number of physiological and cellular …


2019 Soybean Insect Losses In The United States, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. K. Greene, G. M. Lorenz, D. Owens, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, R. Smith, S. D. Stewart, S. Taylor, K. Tilmon, R. T. Villanueva, M. O. Way Mar 2020

2019 Soybean Insect Losses In The United States, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. K. Greene, G. M. Lorenz, D. Owens, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, R. Smith, S. D. Stewart, S. Taylor, K. Tilmon, R. T. Villanueva, M. O. Way

Midsouth Entomologist

Estimated insect management costs and losses due to insects in soybean during the 2019 growing season were collected and compiled from 17 states to provide a record of insect pressure and management practices for the year. These annual estimates provide an historical record of pest pressure and insect management and have been compiled in some states since 2004. Participating states represented 39% of soybean acreage grown in the United States, with near 100% participation in southern states. Overall, the stink bug complex was the costliest insect pest in soybean followed by corn earworm. Total insect management costs were $15.48 per …


2017 Rice Insect Losses In The United States, N. R. Bateman, G. M. Lorenz, B. C. Thrash, J. Gore, M. O. Way, B. E. Wilson, L. A. Espino, F. R. Musser Mar 2020

2017 Rice Insect Losses In The United States, N. R. Bateman, G. M. Lorenz, B. C. Thrash, J. Gore, M. O. Way, B. E. Wilson, L. A. Espino, F. R. Musser

Midsouth Entomologist

Estimates of the costs and losses associated with multiple insect pests of rice were compiled for 5 rice-producing states. Participating states included Arkansas, California, Louisiana, Mississippi, and Texas, accounting for approximately 90% of the rice grown in the US. Overall, insects accounted for more than $133 million in costs and losses during 2017, averaging $60.40 per acre. Rice water weevil caused more yield loss than all other insect pests across all participating states, followed by rice stink bug and true armyworm.


Using Visual And Digital Imagery To Quantify Horn Fly (Diptera: Muscidae) Densities, Brandon Smythe, David J. Boxler, Gary Brewer, Eric T. Psota, D. Wes Watson Jan 2020

Using Visual And Digital Imagery To Quantify Horn Fly (Diptera: Muscidae) Densities, Brandon Smythe, David J. Boxler, Gary Brewer, Eric T. Psota, D. Wes Watson

Department of Entomology: Faculty Publications

The horn fly, Haematobia irritans L. (Diptera: Muscidae), is a persistent pest of cattle globally. A threshold of 200 flies per animal is considered the standard management goal; however, determining when that threshold has been exceeded is difficult using visual estimates that tend to overestimate the actual fly densities and are, at best, subjective. As a result, a more reliable and durable method of determining horn fly densities is needed. Here, we describe the methods commonly used to quantify horn fly densities including visual estimates and digital photography, and provide examples of quantification software and the prospect for computer automation …


Phenology And Dispersal Of The Wheat Stem Sawfly (Hymenoptera: Cephidae) Into Winter Wheat Fields In Nebraska, Chris T. Mccullough, Gary L. Hein, Jeff Bradshaw Dr. Jan 2020

Phenology And Dispersal Of The Wheat Stem Sawfly (Hymenoptera: Cephidae) Into Winter Wheat Fields In Nebraska, Chris T. Mccullough, Gary L. Hein, Jeff Bradshaw Dr.

Department of Entomology: Faculty Publications

Historically, the wheat stem sawfly, Cephus cinctus Norton was a pest in spring wheat-growing regions of the northern Great Plains. However, in the 1980s, it was found infesting winter wheat fields in Montana. Infestations were first detected in western Nebraska in the 1990s, and have since spread throughout the Nebraska Panhandle. Larval damage occurs from stem-mining, but stem girdling that results in lodged stems that are not harvested results in the greatest yield losses.The biology and phenology of the wheat stem sawfly are well described in the northern portion of its range, but they are lacking in Colorado, southeast Wyoming, …


High Tunnel Pest Management - Thrips, Nick Volesky, Marion Murray Jan 2020

High Tunnel Pest Management - Thrips, Nick Volesky, Marion Murray

All Current Publications

This fact sheet describes thrips, their hosts, life cycle, crop injury, monitoring, and management in high tunnels.


2018 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. K. Greene, G. M. Lorenz, D. Owens, T. Reed, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, S. D. Stewart, S. Taylor, K. Tilmon, R. T. Villanueva, M. O. Way Mar 2019

2018 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. K. Greene, G. M. Lorenz, D. Owens, T. Reed, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, S. D. Stewart, S. Taylor, K. Tilmon, R. T. Villanueva, M. O. Way

Midsouth Entomologist

Estimated insect management costs and losses due to insects in soybean during the 2018 growing season were collected and compiled from 17 states to provide a record of insect pressure and management practices for the year. The estimates have been made annually in some southern states for up to 15 years, but this year was the first or second year of participation for 10 states. Participating states represented 40% of soybean acreage grown in the United States, with near 100% participation in southern states. Overall, the stink bug complex was the costliest insect pest in soybean followed by corn earworm. …


2017 Soybean Insect Losses In The United States, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. Greene, G. M. Lorenz, D. Owens, T. Reed, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, S. D. Stewart, S. Taylor, K. Tilmon, M O. Way Mar 2018

2017 Soybean Insect Losses In The United States, F. R. Musser, A. L. Catchot Jr., S. P. Conley, J. A. Davis, C. Difonzo, J. Greene, G. M. Lorenz, D. Owens, T. Reed, D. D. Reisig, P. Roberts, T. Royer, N. J. Seiter, S. D. Stewart, S. Taylor, K. Tilmon, M O. Way

Midsouth Entomologist

Estimated soybean insect costs and losses experienced during 2017 were collected and compiled from 16 states following the 2017 growing season to provide a record of insect pressure and management practices for the year. The estimates have been made annually in some states for up to 14 years, but nine states participated for the first time in 2017. Participating states represented 36% of United States soybean acreage, with near 100% participation in southern states. Overall, the stink bug complex was the most expensive insect pest in soybean followed by corn earworm and soybean looper. Total insect management costs were $19.54 …


Soybean Aphid Biotype 4 Resistance In Soja And Soybean Plant Introductions, Sophia R. Conzemius Jan 2018

Soybean Aphid Biotype 4 Resistance In Soja And Soybean Plant Introductions, Sophia R. Conzemius

Electronic Theses and Dissertations

Soybean aphid, Aphis glycines Matsumura, is a major pest to soybean, Glycine max (L.) Merr. Host plant resistance is a management tactic that uses naturally occurring soybean plant defenses to limit soybean aphid pest damage. Virulent soybean aphid biotypes are able to successfully colonize on certain aphid resistant soybean. Soybean aphid biotype 4 is most virulent, overcoming all commercially available soybean aphid resistant soybeans (Rag1, Rag2, and Rag1+Rag2). Additional sources of resistance to avirulent biotypes have been identified in soja and soybean plant introductions (PIs). This study examined those resistant soja and soybean for resistance to the newly found soybean …


A Comparison Of Two Methods Of Quantifying Mating Success In Low Density Gypsy Moth (Lymantria Dispar) Populations, Alexandra Barry, Hannah Byrne, Derek M. Johnson Jan 2018

A Comparison Of Two Methods Of Quantifying Mating Success In Low Density Gypsy Moth (Lymantria Dispar) Populations, Alexandra Barry, Hannah Byrne, Derek M. Johnson

UROP Posters

The gypsy moth (Lymantria dispar) is a defoliating pest native to Europe and invasive to North America. The gypsy moth is subject to depressed mating success in low density populations, which may restrict spread of the forest pest. Research focusing on gypsy moth density as it relates to mating behavior has often used counts of males caught in pheromone-baited delta traps as a proxy to estimate the probability of female mating success. The purpose of this project was to determine whether pheromone trap counts provide accurate estimates of female mating success probability, by comparing data gathered from pheromone-baited …


Diversity And Abundance Of Lepidopteran Stem Borer Natural Enemies In Natural And Cultivated Habitats In Botswana, Reyard Mutamiswa, Eva Moeng, Bruno P. Le Ru, Des E. Conlong, Yoseph Assefa, Muluken Goftishu, Casper Nyamukondiwa Dec 2017

Diversity And Abundance Of Lepidopteran Stem Borer Natural Enemies In Natural And Cultivated Habitats In Botswana, Reyard Mutamiswa, Eva Moeng, Bruno P. Le Ru, Des E. Conlong, Yoseph Assefa, Muluken Goftishu, Casper Nyamukondiwa

All Peer-Reviewed Publications

Lepidopteran stem-borers in Africa are attacked by diverse natural enemies in natural and cultivated environments. Field surveys of stem-borer natural enemies and associated host plants were conducted during the austral summers of 2014/15 and 2015/16 on natural and cultivated habitats across Botswana to determine their diversity and relative abundance. In cultivated habitats, the most common parasitoids of larvae were Cotesia flavipes Cameron, C. sesamiae (Cameron), and of pupae, Pediobius furvus Gahan and Gambroides nimbipennis Seyrig. In natural habitats, the larval parasitoids Chelonus curvimaculatus Cameron and Goniozus indicus Ashmead were recorded, along with the pupal parasitoid, Dentichasmias busseolae Heinrich. Furthermore, the …


2016 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart, S. Taylor Mar 2017

2016 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart, S. Taylor

Midsouth Entomologist

Estimated soybean insect costs and losses experienced during 2016 were collected and compiled following the 2016 growing season to provide a record of insect pressure and management practices for the year. This survey has been done annually in all participating states since at least 2011, with Mississippi having data back to 2004. The 2016 survey represents 10.8 million soybean acres across the southern United States. Overall, corn earworm was the most expensive pest in soybean followed closely by soybean looper and stink bugs. Total insect management costs rose slightly to $26.03 per acre during 2016. Estimated crop losses to insects …


Interactive Effects Of Cover Crops, Invertebrate Communities And Soil Health In Corn Production Systems, Claire Lacanne Jan 2017

Interactive Effects Of Cover Crops, Invertebrate Communities And Soil Health In Corn Production Systems, Claire Lacanne

Electronic Theses and Dissertations

The adoption of regenerative farming practices is gaining traction, but the costs and benefits are not often considered on a systems level. Encouraging biodiversity and soil health is the goal of many agricultural practices used in regenerative farming; regenerative systems employ practices which abide by the two main principles of increasing biodiversity and decreasing disturbance, with the goal of encouraging ecosystem functioning to minimize inputs and maximize the productivity of a farm. I examined the management of corn (Zea mays) fields across four states in the Upper Midwest region of the United States. Regenerative systems in this study …


Frequency And Time Pattern Differences In Acoustic Signals Produced By Prostephanus Truncatus (Horn) (Coleoptera: Bostrichidae) And Sitophilus Zeamais (Motschulsky) (Coleoptera: Curculionidae) In Stored Maize, A. W. Njoroge, H. Affognon, C. Mutungi, B. Rohde, U. Richter, O. Hensel, R. W. Mankin Oct 2016

Frequency And Time Pattern Differences In Acoustic Signals Produced By Prostephanus Truncatus (Horn) (Coleoptera: Bostrichidae) And Sitophilus Zeamais (Motschulsky) (Coleoptera: Curculionidae) In Stored Maize, A. W. Njoroge, H. Affognon, C. Mutungi, B. Rohde, U. Richter, O. Hensel, R. W. Mankin

All Peer-Reviewed Publications

Frequency spectra and timing patterns of brief, 1-10 ms broadband sound impulses produced by movement and feeding activities of Prostephanus truncatus and Sitophilus zeamais last instars and adults in maize were investigated to find spectral and temporal pattern information useful for distinguishing among these species and stages. The impulse spectra were categorized into five different types of frequency patterns (profiles), designated Broadband, HighF, MidF1, MidF2 and LowF to indicate differences in their peak energies and broadness of frequency range. Groups (trains) of three or more closely spaced impulses, termed bursts, were observed to occur frequently in all recordings, as has …


Prospects For Repellent In Pest Control: Current Developments And Future Challenges, Emilie Deletre, Bertrand Schatz, Denis Bourguet, Fabrice Chandre, Livy Williams, Alain Ratnadass, Thibaud Martin Aug 2016

Prospects For Repellent In Pest Control: Current Developments And Future Challenges, Emilie Deletre, Bertrand Schatz, Denis Bourguet, Fabrice Chandre, Livy Williams, Alain Ratnadass, Thibaud Martin

All Peer-Reviewed Publications

The overall interest in environmentally safe pest control methods and the rise of insecticide resistance in pest populations have prompted medical and agricultural entomology research on insect repellents in recent years. However, conducting research on repellent is challenging for several reasons: (1) the different repellent phenomena are not well defined; (2) it is difficult to test for and quantify repellent; (3) the physiological mechanisms are poorly known; (4) the field efficacy appears to be highly variable. Here, we identified five different types of repellent: expellency, irritancy, deterrency, odor masking and visual masking, and described behavioral bioassays to differentiate between them. …


2015 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart Mar 2016

2015 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart

Midsouth Entomologist

Survey-based soybean insect losses were collected following the 2015 growing season to provide a record of insect pressure and soybean management practices for the year. This survey has been done annually in all participating states for at least the last 5 years and since 2004 in Mississippi. The 2015 survey represents 11.7 million soybean acres across the southern United States. Overall, stink bugs re-emerged as the most expensive pest in soybean followed closely by corn earworm and soybean looper. The proportion of fields planted with insecticide seed treatments decreased slightly for the second consecutive year to 60% of all acreage. …


Developing And Deploying Insect Resistant Maize Varieties To Reduce Pre-And Post-Harvest Food Losses In Africa, Tadele Tefera, Stephen Mugo, Yoseph Beyene Feb 2016

Developing And Deploying Insect Resistant Maize Varieties To Reduce Pre-And Post-Harvest Food Losses In Africa, Tadele Tefera, Stephen Mugo, Yoseph Beyene

All Peer-Reviewed Publications

Maize grain yield in Africa is low, 1.5 t ha−1 compared to the global average of 4.9 t ha−1. Maize production in Africa is constrained by various abiotic (drought, soil fertility) and biotic factors (insect pests, weeds and diseases). Stem borers and postharvest insect pests play considerable roles in reducing maize yield through damaging the leaves, stems, ears, and kernels. Stem borers can cause 10–15 % yield losses while the postharvest insect pests, particularly, the larger grain borer and maize weevil, can cause 14–36 % grain losses. The use of chemical insecticides has been recommended; however, in addition to health …


Environmental Parameters Associated With Stable Fly (Diptera: Muscidae) Development At Hay Feeding Sites, Kristina Friesen, Dennis R. Berkebile, Brian Wienhold, Lisa Durso, Jerry Zhu, David B. Taylor Jan 2016

Environmental Parameters Associated With Stable Fly (Diptera: Muscidae) Development At Hay Feeding Sites, Kristina Friesen, Dennis R. Berkebile, Brian Wienhold, Lisa Durso, Jerry Zhu, David B. Taylor

Department of Entomology: Faculty Publications

Substrates composed of hay residues, dung, and urine accumulate around winter hay feeding sites in cattle pastures, providing developmental habitats for stable flies. The objective of this study was to relate physiochemical and microbial properties of these substrates to the presence or absence of stable fly larvae. Properties included pH, temperature, moisture, ammonium concentration, electrical conductivity, and numbers of coliform, fecal coliform, Escherichia coli, and Enterococcus bacteria. Each physiochemical sample was classified as a function of belonging to one of the three 2-m concentric zones radiating from the feeder as well as presence or absence of larvae. In total, …


Mexican Rice Borer (Eoreuma Loftini) Pheromone Trap Efficacy And Role In Invasive Species Monitoring And Pest Management, Blake Emerson Wilson Jan 2016

Mexican Rice Borer (Eoreuma Loftini) Pheromone Trap Efficacy And Role In Invasive Species Monitoring And Pest Management, Blake Emerson Wilson

LSU Doctoral Dissertations

The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive pest of sugarcane, Saccharum spp.; rice, Oryza sativa; and other graminaceous crops along the U.S. Gulf Coast. Identification of E. loftini sex pheromones led to the development of pheromone baited traps. Studies were conducted to determine strategies for the use of E. loftini pheromone traps in invasive species monitoring and pest management. A two-year field study demonstrated that E. loftini pheromone traps attract males from distances of up to 100m. A behavioral assay observed that detection of the pheromone by E. loftini males occurs at ≈48m from the …


2014 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart Mar 2015

2014 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart

Midsouth Entomologist

Survey-based soybean insect losses were collected following the 2014 growing season to provide a record of insect pressure and soybean management practices for the year. This survey has been done annually in all participating states for at least the last 4 years and since 2004 in Mississippi. The 2014 survey represents more than 11 million soybean acres across the southern United States. Overall, the 2014 survey showed corn earworm to be the most costly insect pest in the region for the fourth consecutive year, but stink bug was the most expensive insect pest in five of the seven surveyed states. …


Plant Volatiles Influence The African Weaver Ant-Cashew Tree Mutualism, Caroline Wanjiku, Fathiya M. Khamis, Peter E.A. Teal, Baldwyn Torto Dec 2014

Plant Volatiles Influence The African Weaver Ant-Cashew Tree Mutualism, Caroline Wanjiku, Fathiya M. Khamis, Peter E.A. Teal, Baldwyn Torto

All Peer-Reviewed Publications

Plant volatiles influence virtually all forms of ant-plant symbioses. However, little is known about their role in the mutualistic relationship between the African weaver ant and the cashew tree. In this study, we tested the hypothesis that cashew tree volatiles from plant parts most vulnerable to herbivory viz. inflorescence, leaves, and fruits, are attractive to weaver ants. Using behavioral assays, we show that these volatiles attract weaver ants but without significant difference in preference for any of the odors. These same plant parts are associated with extra floral nectaries (EFNs’) and therefore we evaluated the possibility that the ants associate …


2013 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart Mar 2014

2013 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart

Midsouth Entomologist

Survey-based soybean insect losses were collected following the 2013 growing season to provide a record of insect pressure and soybean management practices for the year. This survey has been conducted annually in all participating states for at least the last 3 years and has been conducted in Mississippi for 10 years. The 2013 survey represents more than 10 million soybean acres across the southern United States. Overall, the 2013 survey showed corn earworm to be the most costly insect pest in the region for the third consecutive year. The stink bug complex and soybean looper were the second and third …


Composition Of Stem Borer Communities In Selected Vegetation Mosaics In Kenya, G. O. Ong'amo, B. P. Le Ru, P. A. Calatayud, J. F. Silvain Jun 2013

Composition Of Stem Borer Communities In Selected Vegetation Mosaics In Kenya, G. O. Ong'amo, B. P. Le Ru, P. A. Calatayud, J. F. Silvain

All Peer-Reviewed Publications

Busseola fusca (Fuller), Sesamia calamistis Hampson, Chilo partellus (Swinhoe) and Chilo orichalcociliellus (Strand) are important stem borer pests of maize and sorghum in East Africa. Persistence of these pests in crop fields is blamed on the influx of diaspore populations from the neighbouring natural habitats. In addition to pest species, natural habitats support numerous non-economic stem borer species, some not known to science. However, due to growing human populations and accompanying global change, some of the natural habitats are undergoing rapid changes, a process that may result in the evolution of "new" pest species. In this study, we investigated stem …


2012 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart Mar 2013

2012 Soybean Insect Losses In The Southern Us, F. R. Musser, A. L. Catchot Jr., J. A. Davis, D. A. Herbert Jr., G. M. Lorenz, T. Reed, D. D. Reisig, S. D. Stewart

Midsouth Entomologist

Survey-based soybean insect losses were collected following the 2012 growing season to provide a record of insect pressure and soybean management practices for the year. This survey has been done annually in participating states for the last 2-9 years. The 2012 survey represents more than 10 million acres across the southern United States. Overall, the 2012 survey showed corn earworm to be the most costly insect pest in the region for the second consecutive year, costing growers more than $20/acre in direct costs and yield loss. Soybean looper and stink bug were the two other major pests during 2012. More …


A Century And A Half Of Research On The Stable Fly, Stomoxys Calcitrans (L.) (Diptera: Muscidae), 1862-2011: An Annotated Bibliography, K. M. Kneeland, Steven R. Skoda, Jerome A. Hogsette, A. Y. Li, Jaime Molina-Ochoa, Kimberly Hutchinson Lohmeyer, John E. Foster Jul 2012

A Century And A Half Of Research On The Stable Fly, Stomoxys Calcitrans (L.) (Diptera: Muscidae), 1862-2011: An Annotated Bibliography, K. M. Kneeland, Steven R. Skoda, Jerome A. Hogsette, A. Y. Li, Jaime Molina-Ochoa, Kimberly Hutchinson Lohmeyer, John E. Foster

Department of Entomology: Faculty Publications

The stable fly, Stomoxys calcitrans, is a cosmopolitan pest of livestock, wild animals, pets, and humans. It is a primary pest of cattle in the United States, estimated to cause more than $1 billion in economic losses annually. It also causes dissension at the rural-urban interface and is a problem in recreation areas such as Florida beaches and the Great Lakes. Due to its pestiferous nature and painful bite, methods to control stable flies have been investigated for over a century. A large amount of research has been reported on stable fly biology, ecology, genetics, physiology, and vector competence. …