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Articles 121 - 150 of 167
Full-Text Articles in Entomology
Review Of Preplant-Incorporated Pesticide Evaluations In Mississippi Sweetpotatoes, J. T. Reed, D. Bao, D. Cook, C. S. Jackson
Review Of Preplant-Incorporated Pesticide Evaluations In Mississippi Sweetpotatoes, J. T. Reed, D. Bao, D. Cook, C. S. Jackson
Midsouth Entomologist
The use of insecticides incorporated into the soil prior to planting (preplant incorporated, or PPI, application) and approximately 30 days post planting (layby-incorporated, or LBI, application) is a recognized control regimen to reduce insect damage to sweetpotato roots in Mississippi. Seventeen compounds with potential for use as soil-incorporated insecticides were tested in small-plot research trials from 2001 to 2009. Efficacy was evaluated by counting insect feeding scars on marketable roots at harvest. Results within each trial were converted to percent control values based on the water-treated check plots. Results ranged from negative percent control values (more damage than found in …
Relative Risk Of Acquiring Black-Legged Ticks, Ixodes Scapularis, In Central Mississippi, J. Goddard, J. Goddard Ii
Relative Risk Of Acquiring Black-Legged Ticks, Ixodes Scapularis, In Central Mississippi, J. Goddard, J. Goddard Ii
Midsouth Entomologist
No abstract provided.
Description Of Damage By Larvae Of The Spotted Cucumber Beetle, Diabrotica Undecimpunctata Howardi (Coleptera: Chrysomelidae) To Sweetpotato, Ipomoea Batatas (L.) (Solanales: Convolvulaceae), Roots, D. E. Fleming, J. T. Reed
Description Of Damage By Larvae Of The Spotted Cucumber Beetle, Diabrotica Undecimpunctata Howardi (Coleptera: Chrysomelidae) To Sweetpotato, Ipomoea Batatas (L.) (Solanales: Convolvulaceae), Roots, D. E. Fleming, J. T. Reed
Midsouth Entomologist
The larvae of the spotted cucumber beetle (Diabrotica undecimpunctata howardi Barber [Coleoptera: Chrysomelidae]) are damaging pests of sweetpotato (Ipomoea batatas [L.] [Solanales: Convolvulaceae]) roots. Because this assumption was not documented, laboratory trials were conducted to determine if spotted cucumber beetle larvae can feed and develop on sweetpotato roots. Results showed that all stages of spotted cucumber beetle larvae could survive on sweetpotato roots when given no other food choice, and that root damage resembled that described for larvae of other coleopteran sweetpotato pests.
Odontomachus Clarus Roger (Hymenoptera: Formicidae) Reported In Kisatchie National Forest, Louisiana, B. J. Adams, X. Chen, L. M. Hooper-Bùi
Odontomachus Clarus Roger (Hymenoptera: Formicidae) Reported In Kisatchie National Forest, Louisiana, B. J. Adams, X. Chen, L. M. Hooper-Bùi
Midsouth Entomologist
No abstract provided.
Two New Exotic Pest Ants, Pseudomyrmex Gracilis And Monomorium Floricola (Hymenoptera: Formicidae Collected In Mississippi, J. A. Macgown, J. G. Hill
Two New Exotic Pest Ants, Pseudomyrmex Gracilis And Monomorium Floricola (Hymenoptera: Formicidae Collected In Mississippi, J. A. Macgown, J. G. Hill
Midsouth Entomologist
No abstract provided.
Comparison Of Cucumber Beetle (Coleoptera: Chrysomelidae) And Cumulative Soil Insect Damage In Three Sweetpotato Varieties Evaluated Under Selected Preplant Incorporated Insecticide Regimes In Louisiana, T. P. Smith, A. M. Hammond, R. N. Story, E. Burris
Comparison Of Cucumber Beetle (Coleoptera: Chrysomelidae) And Cumulative Soil Insect Damage In Three Sweetpotato Varieties Evaluated Under Selected Preplant Incorporated Insecticide Regimes In Louisiana, T. P. Smith, A. M. Hammond, R. N. Story, E. Burris
Midsouth Entomologist
Soil insects are a limiting factor in sweetpotato production in the United States. Studies were conducted in 2006 and 2007 at the LSU AgCenter Sweet Potato Research Station in Chase, LA, which evaluated the effect of labeled preplant insecticide treatments on subsequent insect damage and yield of Beauregard, Evangeline, and Covington sweetpotato varieties. Sweetpotato producers commonly apply one or more preplant insecticides prior to transplanting. These experiments examined the efficacy of select labeled insecticides applied as close to transplanting as possible without the addition of postplant insecticide applications. The majority of insect damage during 2006 and 2007 was attributed to …
Phenotypic And Genotypic Characters Associated With The Polygyne Hybrid Imported Fire Ant, R. B. Garlapati, D. C. Cross, M. A. Caprio, S. Sabanadzovic, J. Chen
Phenotypic And Genotypic Characters Associated With The Polygyne Hybrid Imported Fire Ant, R. B. Garlapati, D. C. Cross, M. A. Caprio, S. Sabanadzovic, J. Chen
Midsouth Entomologist
A study was initiated to identify the origin of polygyny in the hybrid imported fire ant (Solenopsis invicta × richteri) and to confirm the association of polygyne phenotypic and genotypic characters. Polygyny is known to occur in both species in their native ranges in South America. Gp-9, a major gene in imported fire ants, is associated with the expression of social form. Variants of the monogyne allele, Gp-9B, and the polygyne allele, Gp-9b, have been sequenced for both species. The association of phenotypic and genotypic characters in a hybrid imported fire ant colony is strongly indicated by identification of multiple …
Butterfly Nectar Plants At Big Oak Tree State Park And Towosaghy State Historic Site, Mississippi County, Missouri, K. Fothergill, A. Vaughn
Butterfly Nectar Plants At Big Oak Tree State Park And Towosaghy State Historic Site, Mississippi County, Missouri, K. Fothergill, A. Vaughn
Midsouth Entomologist
No abstract provided.
Evaluation Of Pre-Plant Soil-Incorporated Insecticides For Control Of Sweetpotato Pests, 2009, J. T. Reed, D. Bao, C. S. Jackson
Evaluation Of Pre-Plant Soil-Incorporated Insecticides For Control Of Sweetpotato Pests, 2009, J. T. Reed, D. Bao, C. S. Jackson
Midsouth Entomologist
Preplant-incorporated insecticides were evaluated for efficacy against root-feeding insect pests of sweetpotato in research plots at Mississippi State University, Mississippi State, MS. Preplant-incorporated insecticides did not affect numbers of insects sampled in sweetpotato foliage; however, all treatments provided nearly complete control of root-damaging insects that caused damage to nearly 80% of roots in water-treated check plots. Combining chlorpyrifos and bifenthrin as a pre-plant soil-incorporated application provided no additional benefit in this trial compared with either compound used alone.
Program And Abstracts Of The 56th Annual Conference Of The Mississippi Entomological Association, October 27–28, 2009, Mississippi Entomological Association
Program And Abstracts Of The 56th Annual Conference Of The Mississippi Entomological Association, October 27–28, 2009, Mississippi Entomological Association
Midsouth Entomologist
No abstract provided.
The Invasive Rasberry Crazy Ant, Nylanderia Sp. Near Pubens (Hymenoptera: Formicidae), Reported From Mississippi, J. Macgown, B. Layton
The Invasive Rasberry Crazy Ant, Nylanderia Sp. Near Pubens (Hymenoptera: Formicidae), Reported From Mississippi, J. Macgown, B. Layton
Midsouth Entomologist
No abstract provided.
2009 Soybean Insect Losses For Mississippi, Tennessee, And Arkansas, F. R. Musser, G. M. Lorenz, S. D. Stewart, A. L. Catchot Jr.
2009 Soybean Insect Losses For Mississippi, Tennessee, And Arkansas, F. R. Musser, G. M. Lorenz, S. D. Stewart, A. L. Catchot Jr.
Midsouth Entomologist
Survey-based soybean insect losses provide a glimpse of current soybean management practices and allow one to see evolving trends. This survey was initiated in MS in 2004, and in Tennessee in 2008. This year is the first year that Arkansas has conducted the survey. The 2009 survey shows stink bugs were the primary pest in all three states, but were less widespread than in 2008. Corn earworm pressure was much higher in 2009 than in previous years. Insect scouting and the adoption of seed treatments continued to increase in 2009.
Current Topics In Medical And Veterinary Entomology: Results Of A Roundtable Discussion, K. T. Edwards, J. Goddard, A. S. Varela-Stokes, B. Layton, C. Huston, L. D. Foil
Current Topics In Medical And Veterinary Entomology: Results Of A Roundtable Discussion, K. T. Edwards, J. Goddard, A. S. Varela-Stokes, B. Layton, C. Huston, L. D. Foil
Midsouth Entomologist
No abstract provided.
Corn Stalk Penetration Resistance As A Predictor Of Southwestern Corn Borer (Lepidoptera: Crambidae) Survival, B. K. Gibson, C. D. Parker, F. R. Musser
Corn Stalk Penetration Resistance As A Predictor Of Southwestern Corn Borer (Lepidoptera: Crambidae) Survival, B. K. Gibson, C. D. Parker, F. R. Musser
Midsouth Entomologist
Studies were conducted to determine if corn stalk strength had an effect on southwestern corn borer (Diatraea grandiosella Dyar) survival during different growth stages. In 2006 southwestern corn borer larvae were placed on corn plants during dough stage near the ear and base of the plant. Penetration resistance was lower and borer survival was higher near the ear than near the base of the plant. In 2007, five corn hybrids were planted at three locations in Mississippi. Plants were infested with five 3rd instars at the ear zone during tassel, dough, and dent stages. Survival decreased as the corn progressed …
Swarming Of The Formosan Subterranean Termite (Isoptera: Rhinotermitidae) In Southern Mississippi, A. R. Lax, B. A. Wiltz
Swarming Of The Formosan Subterranean Termite (Isoptera: Rhinotermitidae) In Southern Mississippi, A. R. Lax, B. A. Wiltz
Midsouth Entomologist
Swarms of Formosan subterranean termites, Coptotermes formosanus Shiraki, (FST) in Southern Mississippi were monitored from mid-April through late June, 2007-2009. Distribution of swarming colonies was recorded at 69 traps within Poplarville (Pearl River County) and an additional 45-65 traps, along transects in Pearl River, Lamar, Forrest, and Stone Counties. Swarms were first detected during the week ending April 27 and continued through the final collection dates in late June. In Poplarville, FST colonies were ubiquitous, with 68 of 69 traps catching alates on at least one of the 2009 sampling dates. Along highway transects, FST was collected from 36% of …
Effectiveness Of Fire Ant Mound Treatment Products For Home Lawns, B. Layton, J. Mcadory, H. Hudson
Effectiveness Of Fire Ant Mound Treatment Products For Home Lawns, B. Layton, J. Mcadory, H. Hudson
Midsouth Entomologist
No abstract provided.
The Regulatory Corner: Invasive Against Invasive—An Exotic Bug That Attacks An Invasive Weed, H. Fulton
The Regulatory Corner: Invasive Against Invasive—An Exotic Bug That Attacks An Invasive Weed, H. Fulton
Midsouth Entomologist
No abstract provided.
Multiple Feeding By The Common Bed Bug, Cimex Lectularis, Without Sensitization, J. Goddard, R. De Shazo
Multiple Feeding By The Common Bed Bug, Cimex Lectularis, Without Sensitization, J. Goddard, R. De Shazo
Midsouth Entomologist
No abstract provided.
Evaluation Of Insecticides For Management Of Sweetpotato Insect Pests, J. T. Reed, D. Bao, C. S. Jackson, D. Cook
Evaluation Of Insecticides For Management Of Sweetpotato Insect Pests, J. T. Reed, D. Bao, C. S. Jackson, D. Cook
Midsouth Entomologist
Seventeen compounds were applied as preplant or lay-by incorporated treatments and were evaluated in replicated small plot trials for management of soil-borne insects, and foliar insecticides were applied for management of leaf-feeding insects. Although several treatments reduced damage to sweetpotato roots, some soil incorporated treatments resulted in higher insect counts for one or more species or more insect damaged sweetpotatoes than the water treated check plots. All treatments used for dingy cutworm were effective, however pyrethroids were less effective than were other compounts evaluated in the trial. The evaluation for foliage feeding insects resulted in significant differences in lady beetles …
Prevalence Of Cuterebra Sp. (Diptera: Cuterebridae) On Eastern Gray Squirrels (Sciurus Carolinensis) In Tennessee, R. D. Applegate, E. L. Warr
Prevalence Of Cuterebra Sp. (Diptera: Cuterebridae) On Eastern Gray Squirrels (Sciurus Carolinensis) In Tennessee, R. D. Applegate, E. L. Warr
Midsouth Entomologist
A total of 26,368 eastern gray squirrels (Sciurus carolinensis) were examined for presence of Cuterebra sp. in Tennessee. During a 15-year period, Cuterebra sp. prevalence was 2.1%, which was lower than reported in other southern states. The highest prevalence of Cuterebra infestation was in eastern Tennessee (7.9%) and the lowest in western Tennessee (0.9%).
Nature And Severity Of Imported Fire Ant (Hymenoptera: Formicidae) Infestations On The Mississippi River Levee, J. T. Vogt
Midsouth Entomologist
Infestations of imported fire ant (Hymenoptera: Formicidae) (Solenopsis invicta Buren) were mapped and quantified at four sites on the Mainline Mississippi River Levee in Mississippi. Smaller mounds predominated in areas of high insolation, and overall ant density (measured by above-ground mound volume and mound density) appeared to be highest at moderate insolation levels and lowest in areas of high insolation. More imported fire ant colonies were located on the levee slope than the adjoining landside berm. Despite trends in mound size and overall ant density, colonies were encountered on all parts of the levee, making adequate coverage of the infested …
The Asian Needle Ant, Pachycondyla Chinensis (Emery) (Hymenoptera: Formicidae), Reported From Alabama, J. A. Macgown
The Asian Needle Ant, Pachycondyla Chinensis (Emery) (Hymenoptera: Formicidae), Reported From Alabama, J. A. Macgown
Midsouth Entomologist
No abstract provided.
The Regulatory Corner: Forests Under Attack—Firewood Being Tracked?, H. Fulton
The Regulatory Corner: Forests Under Attack—Firewood Being Tracked?, H. Fulton
Midsouth Entomologist
No abstract provided.
Effects Of Temperature On The Metabolic Rates Of Insecticide Resistant And Susceptible German Cockroaches, Blattella Germanica (L.) (Dictyoptera: Blattellidae), B. N. Dingha, A. G. Appel, J. T. Vogt
Effects Of Temperature On The Metabolic Rates Of Insecticide Resistant And Susceptible German Cockroaches, Blattella Germanica (L.) (Dictyoptera: Blattellidae), B. N. Dingha, A. G. Appel, J. T. Vogt
Midsouth Entomologist
We examined the standard metabolic rates of pyrethroid resistant and susceptible German cockroaches, B. germanica. Measurements of CO2 production and O2 consumptions were obtained at 5 to 40 °C at 5 °C intervals using closed-system respirometry. Overall VO2 (ml g-1 h-1) was not significantly different among strains but different strains reacted differently to increasing temperature. Mean cockroach body mass differed significantly among strains and VO2 (ml g-1 h-1) scaled with temperature and mass in all strains. We used data at 25 °C to examine the effect of mass on the rate of oxygen consumption. Mass specific VO2 (ml g--1 h-1) …
Unknown Substance Found On Spotted Cucumber Beetle Larva (Diabrotica Undecimpunctata Howardi Barber), D. E. Fleming
Unknown Substance Found On Spotted Cucumber Beetle Larva (Diabrotica Undecimpunctata Howardi Barber), D. E. Fleming
Midsouth Entomologist
An unknown substance (Figure 1) was discovered on the cuticle of a one-day-old spotted cucumber beetle larvae (Diabrotica undecimpunctata howardi) by means of scanning electron microscopy.
The Regulatory Corner: Citrus Not So Green With Citrus Greening, H. Fulton
The Regulatory Corner: Citrus Not So Green With Citrus Greening, H. Fulton
Midsouth Entomologist
No abstract provided.
2008 Soybean Insect Losses For Mississippi And Tennessee, F. R. Musser
2008 Soybean Insect Losses For Mississippi And Tennessee, F. R. Musser
Midsouth Entomologist
Survey-based soybean insect losses provide a glimpse of current soybean management practices and allow one to see evolving trends. Continuing a survey begun in 2004 in Mississippi, the 2008 survey showed that seed treatments were used extensively for the first time and soybean acreage monitored by crop scouts continued to increase. Stink bugs (Hemiptera: Pentatomidae) remained the most important pest in Mississippi followed by soybean looper (Lepidoptera: Noctuidae), bean leaf beetle (Coleoptera: Chrysomelidae) and threecornered alfalfa hopper (Hemiptera: Membracidae). In the first year of published losses for Tennessee, economic costs in yield loss plus control costs were greatest for stink …
Abstracts Of The 55th Annual Meeting Of The Mississippi Entomological Association, October 28–29, 2008, Ryan Jackson
Abstracts Of The 55th Annual Meeting Of The Mississippi Entomological Association, October 28–29, 2008, Ryan Jackson
Midsouth Entomologist
No abstract provided.
Insects Associated With Sweetpotato, Ipomoea Batatas (L.), In Mississippi, J. T. Reed, D. E. Fleming, T. L. Schiefer, D. Bao, C. S. Jackson
Insects Associated With Sweetpotato, Ipomoea Batatas (L.), In Mississippi, J. T. Reed, D. E. Fleming, T. L. Schiefer, D. Bao, C. S. Jackson
Midsouth Entomologist
Seventy-two species or genera of insects collected from or observed in commercial sweetpotato (Ipomoea batatas [L.]) fields or research plots during a five-year period are listed. Twenty-two species are known to damage sweetpotato storage roots, 13 species are recognized as serious pests of sweetpotato, and 43 species have the potential for feeding on sweetpotato foliage. The primary root-damaging pests are beetles (Coleoptera: Chrysomelidae, Brentidae, Curculionidae, Elateridae and Scarabeidae), and noctuid moth larvae (Lepidoptera: Noctuidae). Other insects from the orders Hemiptera (8 species), Lepidoptera (9 species), Orthoptera (1 species), and Thysanoptera (3 species) are listed. Thrips, aphids, and several beetle species …
Examination Of The Internal Morphology Of The Ixodid Tick, Amblyomma Maculatum Koch, (Acari: Ixodidae); A “How-To” Pictorial Dissection Guide, K. T. Edward, J. Goddard, A. S. Varela-Stokes
Examination Of The Internal Morphology Of The Ixodid Tick, Amblyomma Maculatum Koch, (Acari: Ixodidae); A “How-To” Pictorial Dissection Guide, K. T. Edward, J. Goddard, A. S. Varela-Stokes
Midsouth Entomologist
There is inadequate documentation of how to dissect ticks, a process required for many tick and disease studies. While the literature may contain numerous line drawings and instructions describing the process, none is adequate for the novice tick dissector. We present a “how-to” description and pictorial essay outlining our approach to tick dissection. The ticks used in this study were adult male and female Gulf Coast ticks, Amblyomma maculatum Koch, though the methods described herein could be applied to any species. None of the A. maculatum specimens we dissected adequately demonstrated ovaries, so we used one female A. americanum L.tick …