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Articles 1 - 30 of 50
Full-Text Articles in Entomology
3d Printing Insect Models For K-12 Education, Henry L. Whittemore, Jason Oliver, Karla M. Addesso
3d Printing Insect Models For K-12 Education, Henry L. Whittemore, Jason Oliver, Karla M. Addesso
Extension Publications
No abstract provided.
Entomology Insect Pollinators And Predators-Flower Flies, Manju Yogi, Kaushalya Amarasekare
Entomology Insect Pollinators And Predators-Flower Flies, Manju Yogi, Kaushalya Amarasekare
Extension Publications
No abstract provided.
Periodical Cicadas In Tennessee, Karla M. Addesso, Jason B. Oliver, Martine Bowombe-Toko, Douglas L. Airhart
Periodical Cicadas In Tennessee, Karla M. Addesso, Jason B. Oliver, Martine Bowombe-Toko, Douglas L. Airhart
Extension Publications
No abstract provided.
Entomology Striped Cucumber Beetle, Kaushalya Amarasekare
Entomology Striped Cucumber Beetle, Kaushalya Amarasekare
Extension Publications
No abstract provided.
Crapemyrtle Aphid, Kripa Dhakal, Kaitlin Barrios, Karla M. Addesso
Crapemyrtle Aphid, Kripa Dhakal, Kaitlin Barrios, Karla M. Addesso
Extension Publications
No abstract provided.
Box Tree Moth (Cydalima Perspectalis), Kripa Dhakal, Karla M. Addesso
Box Tree Moth (Cydalima Perspectalis), Kripa Dhakal, Karla M. Addesso
Extension Publications
The box tree moth (BTM), Cydalima perspectalis (Walker) (Lepidoptera: Crambidae), is an invasive pest of boxwood (Buxus spp.) causing severe damage to these popular ornamental plants. These plants are popular for their low maintenance, deer resistance, and evergreen foliage. It is a shrub common to almost all landscape environments in the United States. The box tree moth is native to East Asia. It was discovered in Europe in 2007, and since then it has spread rapidly across the continent. In 2018, box tree moth was first detected in North America in Ontario, Canada and in July 2021, the U.S. Department …
Ambrosia Beetles Important To Tennessee Nurseries, Anju Poudel, Asmita Gautam, Karla Addesso, Jason Oliver, Garrett Roper
Ambrosia Beetles Important To Tennessee Nurseries, Anju Poudel, Asmita Gautam, Karla Addesso, Jason Oliver, Garrett Roper
Extension Publications
No abstract provided.
Japanese Beetle (Popillia Japonica), Asmita Gautam, Karla M. Addesso, Anju Poudel, Jason B. Oliver
Japanese Beetle (Popillia Japonica), Asmita Gautam, Karla M. Addesso, Anju Poudel, Jason B. Oliver
Extension Publications
Japanese beetle (Coleoptera: Scarabaeidae), Popillia japonica Newman, is an invasive beetle introduced from Asia to the United States in the early 1900s. It was first detected in New Jersey and later distributed in 28 states in the United States (Fig 1). In Tennessee, the beetle population was first detected in 1936, and about 80 counties in Tennessee have been infested by their establishment. Adult beetles feed on over 300 plant species, including foliage, fruits, and flowers. It is a significant pest of turfgrass, and ornamental and horticultural crops in the eastern United States. Adults and larvae aggregate on the plants …
Effects Of Color Attributes On Trap Capture Rates Of Chrysobothris Femorata (Coleoptera: Buprestidae) And Related Species, Cynthia L. Perkovich, Karla M. Addesso, Joshua P. Basham, Donna C. Fare, Nadeer N. Youssef, Jason B. Oliver
Effects Of Color Attributes On Trap Capture Rates Of Chrysobothris Femorata (Coleoptera: Buprestidae) And Related Species, Cynthia L. Perkovich, Karla M. Addesso, Joshua P. Basham, Donna C. Fare, Nadeer N. Youssef, Jason B. Oliver
Agricultural and Environmental Sciences Faculty Research
Chrysobothris spp. (Coleoptera: Buprestidae) and other closely related buprestids are common pests of fruit, shade, and nut trees in the United States. Many Chrysobothris spp., including Chrysobothris femorata, are polyphagous herbivores. Their wide host range leads to the destruction of numerous tree species in nurseries and orchards. Although problems caused by Chrysobothris are well known, there are no reliable monitoring methods to estimate local populations before substantial damage occurs. Other buprestid populations have been effectively estimated using colored sticky traps to capture beetles. However, the attraction of Chrysobothris to specific color attributes has not been directly assessed. A multi-color trapping …
Flatheaded Borer Management In Nurseries With Winter Cover Crops, Karla Addesso, Axel Gonzalez, Jason Oliver, Anthony Witcher
Flatheaded Borer Management In Nurseries With Winter Cover Crops, Karla Addesso, Axel Gonzalez, Jason Oliver, Anthony Witcher
Extension Publications
No abstract provided.
Tupelo Borer - A Newly Identified Longhorn Beetle In Tennessee, Aubree Morrison, Jason Oliver, Karla Addesso
Tupelo Borer - A Newly Identified Longhorn Beetle In Tennessee, Aubree Morrison, Jason Oliver, Karla Addesso
Extension Publications
No abstract provided.
Entomology Arthropod Pests Of Hemp, Kaushalya Amarasekare
Entomology Arthropod Pests Of Hemp, Kaushalya Amarasekare
Extension Publications
No abstract provided.
Recent Advances Toward The Sustainable Management Of Invasive Xylosandrus Ambrosia Beetles, Antonio Gugliuzzo, Peter H.W. Biedermann, Daniel Carrillo, Louela A. Castrillo, James P. Egonyu, Diego Gallego, Khalid Haddi, Jiri Hulcr, Hervé Jactel, Hisashi Kajimura, Naoto Kamata, Nicolas Meurisse, You Li, Jason B. Oliver, Christopher M. Ranger, Davide Rassati, Lukasz L. Stelinski, Roanne Sutherland, Giovanna Tropea Garzia, Mark G. Wright, Antonio Biondi
Recent Advances Toward The Sustainable Management Of Invasive Xylosandrus Ambrosia Beetles, Antonio Gugliuzzo, Peter H.W. Biedermann, Daniel Carrillo, Louela A. Castrillo, James P. Egonyu, Diego Gallego, Khalid Haddi, Jiri Hulcr, Hervé Jactel, Hisashi Kajimura, Naoto Kamata, Nicolas Meurisse, You Li, Jason B. Oliver, Christopher M. Ranger, Davide Rassati, Lukasz L. Stelinski, Roanne Sutherland, Giovanna Tropea Garzia, Mark G. Wright, Antonio Biondi
Agricultural and Environmental Sciences Faculty Research
We provide an overview of both traditional and innovative control tools for management of three Xylosandrus ambrosia beetles (Coleoptera: Curculionidae: Scolytinae), invasive species with a history of damage in forests, nurseries, orchards and urban areas. Xylosandrus compactus, X. crassiusculus and X. germanus are native to Asia, and currently established in several countries around the globe. Adult females bore galleries into the plant xylem inoculating mutualistic ambrosia fungi that serve as food source for the developing progeny. Tunneling activity results in chewed wood extrusion from entry holes, sap outflow, foliage wilting followed by canopy dieback, and branch and trunk necrosis. Maintaining …
Unique Venom Proteins From Solenopsis Invicta X Solenopsis Richteri Hybrid Fire Ants, Steven M. Valles, Jason B. Oliver, Karla M. Addesso, Omaththage P. Perera
Unique Venom Proteins From Solenopsis Invicta X Solenopsis Richteri Hybrid Fire Ants, Steven M. Valles, Jason B. Oliver, Karla M. Addesso, Omaththage P. Perera
Agricultural and Environmental Sciences Faculty Research
The Solenopsis venom protein 2 transcript was amplified, sequenced, probed, and analyzed from Solenopsis invicta x Solenopsis richteri hybrid ant colonies (hybrids) collected from across Tennessee to determine the extent of introgression of each parent allele (Solenopsis invicta venom protein 2 [Soli2] and Solenopsis richteri venom protein 2 [Solr2]). Chemotaxonomic analyses of venom alkaloids and cuticular hydrocarbons were used to categorize hybrid colonies and their relative relatedness to each parent species. Hybrid colonies were chosen randomly from each chemotaxonomic hybridization category, including “very near S. richteri,” “near S. richteri,” “near S. invicta,” and “very near S. invicta.” Lateral flow immunoassays …
Electrophysiological And Behavioral Responses Of An Ambrosia Beetle To Volatiles Of Its Nutritional Fungal Symbiont, Christopher M. Ranger, Marek Dzurenko, Jenny Barnett, Ruchika Geedi, Louela Castrillo, Matthew Ethington, Matthew Ginzel, Karla Addesso, Michael E. Reding
Electrophysiological And Behavioral Responses Of An Ambrosia Beetle To Volatiles Of Its Nutritional Fungal Symbiont, Christopher M. Ranger, Marek Dzurenko, Jenny Barnett, Ruchika Geedi, Louela Castrillo, Matthew Ethington, Matthew Ginzel, Karla Addesso, Michael E. Reding
Agricultural and Environmental Sciences Faculty Research
Ambrosia beetles (Coleoptera: Scolytinae) cultivate their fungal symbiont within host substrates as the sole source of nutrition on which the larvae and adults must feed. To investigate a possible role for semiochemicals in this interaction, we characterized electrophysiological and behavioral responses of Xylosandrus germanus to volatiles associated with its fungal symbiont Ambrosiella grosmanniae. During still-air walking bioassays, X. germanus exhibited an arrestment response to volatiles of A. grosmanniae, but not antagonistic fungi Beauveria bassiana, Metarhizium brunneum, Trichoderma harzianum, the plant pathogen Fusarium proliferatum, or malt extract agar. Solid phase microextraction-gas chromatography-mass spectrometry identified 2-ethyl-1-hexanol, …
Relationship Of Imported Fire Ant (Hymenoptera: Formicidae) Integument Coloration To Cuticular Hydrocarbon And Venom Alkaloid Profiles, Manoj Pandey, Karla M. Addesso, Lisa W. Alexander, Nadeer N. Youssef, Jason B. Oliver
Relationship Of Imported Fire Ant (Hymenoptera: Formicidae) Integument Coloration To Cuticular Hydrocarbon And Venom Alkaloid Profiles, Manoj Pandey, Karla M. Addesso, Lisa W. Alexander, Nadeer N. Youssef, Jason B. Oliver
Agricultural and Environmental Sciences Faculty Research
Red imported fire ant (Solenopsis invicta Buren; RIFA) and black imported fire ant (Solenopsis richteri Forel (Hymenoptera: Formicidae); BIFA) are considered distinct species with introgression via a reproductively functional hybrid (HIFA). The RIFA and BIFA common names are based on relative coloration. Due to human color perception variation, using color to identify RIFA, BIFA or HIFA is challenging. Fire ant identification traditionally involves molecular or chemical techniques, but a colorimetric test could allow rapid and low-cost identification. In this study, ant integument coloration was measured by spectrophotometer, and color attributes were compared to a combined gas chromatography (GC) index derived …
Evaluation Of Systemic Imidacloprid And Herbicide Treatments On Flatheaded Borer (Coleoptera: Buprestidae) Management In Field Nursery Production, Karla M. Addesso, Jason B. Oliver, Nadeer N. Youssef, Donna C. Fare
Evaluation Of Systemic Imidacloprid And Herbicide Treatments On Flatheaded Borer (Coleoptera: Buprestidae) Management In Field Nursery Production, Karla M. Addesso, Jason B. Oliver, Nadeer N. Youssef, Donna C. Fare
Agricultural and Environmental Sciences Faculty Research
The flatheaded appletree borer, Chrysobothris femorata (Olivier) (Coleoptera: Buprestidae), and related species are deciduous tree pests. Female beetles prefer to oviposit at tree bases, and larvae tunnel beneath the bark, which weakens or kills young or newly transplanted trees. In the first objective of this study, Discus N/G (2.94% imidacloprid + 0.7% cyfluthrin) applied at six lower-than-labeled rates (0.0, 0.98, 1.97, 3.94, 5.91, and 7.87 ml/cm of average trunk dia.) was evaluated for protection of field-grown maples. A second objective evaluated imidacloprid with and without herbicides to assess the impact of weed competition at the tree base on insecticide effectiveness. …
Permethrin Residual Activity Against Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Attacks Following Field Aging And Simulated Rainfall Weathering, Matthew S. Brown, Karla M. Addesso, Fulya Baysal-Gurel, Nadeer N. Youssef, Jason B. Oliver
Permethrin Residual Activity Against Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Attacks Following Field Aging And Simulated Rainfall Weathering, Matthew S. Brown, Karla M. Addesso, Fulya Baysal-Gurel, Nadeer N. Youssef, Jason B. Oliver
Agricultural and Environmental Sciences Faculty Research
Adult ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) bore into ornamental nursery trees resulting in trunk vascular tissue damage, which can potentially kill trees. Ambrosia beetle exposure to surface-applied insecticides is minimal after internal trunk galleries are formed, so effective management requires insecticide treatments to be applied near the time of infestation or to have residual activity on the bark. Tree trunk sections (bolts) were used to determine the effect of field aging or irrigation (i.e., simulated rainfall weathering) on permethrin residual activity against ambrosia beetles. In all experiments, 30-cm-long bolts from Liriodendron tulipifera L. (Magnoliales: Magnoliaceae) were hollowed and filled with …
Long-Lasting Insecticide Netting For Protecting Tree Stems From Attack By Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae), Christopher M. Ranger, Christopher T. Werle, Peter B. Schultz, Karla M. Addesso, Jason B. Oliver, Michael E. Reding
Long-Lasting Insecticide Netting For Protecting Tree Stems From Attack By Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae), Christopher M. Ranger, Christopher T. Werle, Peter B. Schultz, Karla M. Addesso, Jason B. Oliver, Michael E. Reding
Agricultural and Environmental Sciences Faculty Research
Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) are destructive wood-boring insects of horticultural trees. We evaluated long-lasting insecticide netting for protecting stems against ambrosia beetles. Container-grown eastern redbud, Cercis canadensis, trees were flood-stressed to induce ambrosia beetle attacks, and deltamethrin-treated netting was wrapped from the base of the stem vertically to the branch junction. Trees were deployed under field conditions in Ohio, Virginia, Tennessee, and Mississippi with the following treatments: (1) flooded tree; (2) flooded tree with untreated netting; (3) flooded tree with treated ‘standard mesh’ netting of 24 holes/cm2; (4) flooded tree with treated ‘fine mesh’ netting of 28 …
Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Management In Forest, Landscape, And Nursery Production, Elizabeth P. Mccarty, Karla M. Addesso
Hemlock Woolly Adelgid (Hemiptera: Adelgidae) Management In Forest, Landscape, And Nursery Production, Elizabeth P. Mccarty, Karla M. Addesso
Agricultural and Environmental Sciences Faculty Research
Hemlock woolly adelgid, Adelges tsugae (Annand) (Hemiptera: Adelgidae), has caused significant damage to both eastern [Tsuga canadensis (L.) Carrière] and Carolina hemlock (Tsuga caroliniana Englemann) (Pinales: Pinaceae) since it was first reported in the eastern United States. This adelgid is particularly damaging to these hemlock species due to a lack of co-evolved plant defenses and natural enemies able to suppress hemlock woolly adelgid populations. Management of hemlock woolly adelgid relies heavily on insecticides to prevent death of vulnerable trees. Biological control programs have released natural enemies of hemlock woolly adelgid to aid in control at the landscape level. …
Trap Tree And Interception Trap Techniques For Management Of Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) In Nursery Production Get Access Arrow, Karla M. Addesso, Jason B. Oliver, Nadeer N. Youssef, Paul A. O'Neal, Christopher Ranger, Michael E. Reding, Peter B. Schultz, Christopher T. Werle
Trap Tree And Interception Trap Techniques For Management Of Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) In Nursery Production Get Access Arrow, Karla M. Addesso, Jason B. Oliver, Nadeer N. Youssef, Paul A. O'Neal, Christopher Ranger, Michael E. Reding, Peter B. Schultz, Christopher T. Werle
Agricultural and Environmental Sciences Faculty Research
The majority of wood-boring ambrosia beetles are strongly attracted to ethanol, a behavior which could be exploited for management within ornamental nurseries. A series of experiments was conducted to determine if ethanol-based interception techniques could reduce ambrosia beetle pest pressure. In two experiments, trap trees injected with a high dose of ethanol were positioned either adjacent or 10–15 m from trees injected with a low dose of ethanol (simulating a mildly stressed tree) to determine if the high-dose trap trees could draw beetle attacks away from immediately adjacent stressed nursery trees. The high-ethanol-dose trees sustained considerably higher attacks than the …
Integrating Repellent And Attractant Semiochemicals Into A Push–Pull Strategy For Ambrosia Beetles (Coleoptera: Curculionidae), Christopher T. Werle, Christopher M. Ranger, Peter B. Schultz, Michael E. Reding, Karla M. Addesso, Jason B. Oliver, Blair J. Sampson
Integrating Repellent And Attractant Semiochemicals Into A Push–Pull Strategy For Ambrosia Beetles (Coleoptera: Curculionidae), Christopher T. Werle, Christopher M. Ranger, Peter B. Schultz, Michael E. Reding, Karla M. Addesso, Jason B. Oliver, Blair J. Sampson
Agricultural and Environmental Sciences Faculty Research
Non‐native ambrosia beetles (Coleoptera: Curculionidae), especially Xylosandrus compactus (Eichhoff), Xylosandrus crassiusculus (Motschulsky) and Xylosandrus germanus (Blandford), are destructive wood‐boring pests of trees in ornamental nurseries and tree fruit orchards. Previous studies have demonstrated the adults are repelled by verbenone and strongly attracted to ethanol. We tested a “push–pull” semiochemical strategy in Ohio, Virginia and Mississippi using verbenone emitters to “push” beetles away from vulnerable trees and ethanol lures to “pull” them into annihilative traps. Container‐grown trees were flood‐stressed to induce ambrosia beetle attacks and then deployed in the presence or absence of verbenone emitters and a perimeter of ethanol‐baited interception …
Evaluation Of A Lignin-Encapsulated Nootkatone Formulation Against Tetranychus Urticae (Acari: Tetranychidae), Karla M. Addesso, Paul A. O'Neal, Shannen Leahy, Kevin Trostel, Robert W. Behle
Evaluation Of A Lignin-Encapsulated Nootkatone Formulation Against Tetranychus Urticae (Acari: Tetranychidae), Karla M. Addesso, Paul A. O'Neal, Shannen Leahy, Kevin Trostel, Robert W. Behle
Agricultural and Environmental Sciences Faculty Research
Botanical-based miticides, such as neem oil, are used in organic and conventional agronomic production as part of chemical rotation plans to suppress pest mite populations. Other plant-based compounds such as nootkatone (a component of essential oils distilled from grapefruit, Citrus paradisi Macfayden (Rutaceae), and Alaskan yellow cedar, Chamaecyparis nootkatensis [D. Don] Spach [Cupressaceae]), also may serve as effective organic miticides in crop production systems. We report on a lignin-encapsulated (LE) nootkatone formulation (previously effective at repelling ticks) that was evaluated as a miticide against the twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae). At an application rate of 1 g/L …
Swirski Mite Controlled-Release Sachets As A Pest Management Tool In Container Tree Production, Karla M. Addesso, Anthony L. Witcher, Donna C. Fare
Swirski Mite Controlled-Release Sachets As A Pest Management Tool In Container Tree Production, Karla M. Addesso, Anthony L. Witcher, Donna C. Fare
Agricultural and Environmental Sciences Faculty Research
Adoption of biological control tools in woody ornamental nursery production has lagged behind other agriculture fields. One of the major obstacles to adoption is lack of information on the efficacy of various biological control agents in nursery production systems. The predatory mite Amblyseius swirskii, sold commercially as “swirski mite,” is a generalist predatory mite that has recently been adopted as a generalist control for a wide range of mite and insect pests, including thrips (Thripidae), whiteflies (Aleyrodidae), eriophyid mites (Eriophyidae), broad mite (Polyphagotarsonemus latus), and spider mites (Tetranychidae). A controlled-release sachet formulation of swirski mite was evaluated …
The Longhorned Beetles (Coleoptera: Cerambycidae) Of Tennessee: Distribution Of Species, Seasonal Adult Activity, And New State Records, William E. Klingeman, Nadeer N. Youssef, Jason B. Oliver, Joshua P. Basham
The Longhorned Beetles (Coleoptera: Cerambycidae) Of Tennessee: Distribution Of Species, Seasonal Adult Activity, And New State Records, William E. Klingeman, Nadeer N. Youssef, Jason B. Oliver, Joshua P. Basham
Agricultural and Environmental Sciences Faculty Research
Efforts to document species of longhorned beetles (Coleoptera: Cerambycidae) occurring in Tennessee have not been updated since 1973. To address this knowledge gap, institutional, research, and private collections in Tennessee were reviewed to provide faunal distribution assessments and seasonal activity data for the cerambycid beetle species active in Tennessee. Examinations of 9,918 specimens and records yielded a list of 230 cerambycid beetle species within 5 subfamilies. Twenty-seven species are reported as new state records from Tennessee. Adult seasonal activity data that were recorded on specimen labels are presented. Where available, notes on collection method, adult resources, and larval host plants …
Effect Of Non-Nutritive Sugars To Decrease The Survivorship Of Spotted Wing Drosophila, Drosophila Suzukii, Man-Yeon Choi, Siew Bee Tang, Seung-Joon Ahn, Kaushalya G. Amarasekare, Peter Shearer, Jana C. Lee
Effect Of Non-Nutritive Sugars To Decrease The Survivorship Of Spotted Wing Drosophila, Drosophila Suzukii, Man-Yeon Choi, Siew Bee Tang, Seung-Joon Ahn, Kaushalya G. Amarasekare, Peter Shearer, Jana C. Lee
Agricultural and Environmental Sciences Faculty Research
In this study, we investigated the effects of non-nutritive sugars and sugar alcohols on the survivorship of spotted wing drosophila, Drosophila suzukii, and found erythritol and erythrose as potentially insecticidal to the fly. In a dose-dependent study, erythritol and erythrose significantly reduced fly longevity, with 100% mortality with 1, 0.5, 0.1 & 0.05 M doses after feeding for 7 days. When sucrose and erythritol solutions were provided separately to flies for 7 days, there was no effect on survivorship regardless of erythritol concentrations. However, with a serial combination of sucrose and erythritol solutions, fly survivorship was significantly decreased for the …
Integrating Kaolin Clay For Ambrosia Beetle Management In Ornamental Crops Of Eastern Redbud, Christopher T. Werle, Karla M. Addesso, Blair J. Sampson, Jason B. Oliver, John J. Adamczyk
Integrating Kaolin Clay For Ambrosia Beetle Management In Ornamental Crops Of Eastern Redbud, Christopher T. Werle, Karla M. Addesso, Blair J. Sampson, Jason B. Oliver, John J. Adamczyk
Agricultural and Environmental Sciences Faculty Research
Invasive ambrosia beetles (Coleoptera: Curculionidae) are an important pest problem at ornamental tree nurseries. Available chemical treatments are not completely effective and, due to the length of the beetle dispersal period and insecticide breakdown, repeated treatments can become costly in terms of application expense and nontarget impacts. Additional options are needed to reduce application frequency and to provide an acceptable level of crop protection. Four treatments were tested using ethanol-injected eastern redbud trees at research sites in Mississippi (MS) and Tennessee (TN) over 2 years (2014–15), with the number of new ambrosia beetle galleries compared over time on 1) nontreated …
Novel Aspects Of Drosophila Suzukii (Diptera: Drosophilidae) Biology And An Improved Method For Culturing This Invasive Species With A Modified D. Melanogaster Diet, Blair J. Sampson, Trevor Mallette, Karla M. Addesso, Oscar E. Liburd, Lindsy E. Iglesias, Stephen J. Stringer, Chris T. Werle, Donna A. Shaw, Drew Larsen, John J. Adamczyk
Novel Aspects Of Drosophila Suzukii (Diptera: Drosophilidae) Biology And An Improved Method For Culturing This Invasive Species With A Modified D. Melanogaster Diet, Blair J. Sampson, Trevor Mallette, Karla M. Addesso, Oscar E. Liburd, Lindsy E. Iglesias, Stephen J. Stringer, Chris T. Werle, Donna A. Shaw, Drew Larsen, John J. Adamczyk
Agricultural and Environmental Sciences Faculty Research
Drosophila suzukii (Matsumara) (Diptera: Drosophilidae), the spotted wing drosophila, is a global pest of soft fruits now rearable on a standard D. melanogaster (Meigen) diet containing the fly's own natural food: soft-skinned berries. The techniques tested here can save 40% of cultures from microbial contamination that develops after combining artificial food sources (e.g., standard drosophila media) with unsterilized host plant material (berries). A suitable ratio for mixing dietary ingredients for a vial or test-tube rearing system includes, by weight, 1 part berry tissue for oviposition, 1.5 parts dry diet media for carbohydrate, 7 parts clean water for moisture, and ∼5 …
Delayed Emergence Of Trachykele Blondeli Blondeli (Coleoptera: Buprestidae), Joshua P. Basham, Jason B. Oliver, Claire E. Herzog
Delayed Emergence Of Trachykele Blondeli Blondeli (Coleoptera: Buprestidae), Joshua P. Basham, Jason B. Oliver, Claire E. Herzog
Agricultural and Environmental Sciences Faculty Research
Prolonged emergence of Trachykele blondeli blondeli Marseul (Coleoptera: Buprestidae) is reported from kiln-dried and subsequently painted wood in this report. The specimen emergence is a new record for Florida. Because the specimen did not emerge from host plant material grown in Florida, it is likely that its origin was exterior to Florida. Because of delayed and prolonged emergence capability in Buprestidae, as well as specimen survival of wood preservation processes like kiln drying, the current report does indicate a concern for redistribution of non-indigenous buprestid species to new areas.
Large-Plot Field Studies To Assess Impacts Of Newer Insecticides On Non-Target Arthropods In Western U.S. Orchards, Peter W. Shearer, Kaushalya G. Amarasekare, Steven P. Castagnoli, Elizabeth H. Beers, Vincent P. Jones, Nicholas J. Mills
Large-Plot Field Studies To Assess Impacts Of Newer Insecticides On Non-Target Arthropods In Western U.S. Orchards, Peter W. Shearer, Kaushalya G. Amarasekare, Steven P. Castagnoli, Elizabeth H. Beers, Vincent P. Jones, Nicholas J. Mills
Agricultural and Environmental Sciences Faculty Research
The non-target impacts of two reduced risk insecticides, chlorantraniliprole and spinetoram, were evaluated for two years in Oregon pear and California walnut orchards. Experiments were conducted in large replicated plots (approximately 0.25–0.4ha) to assess the impact of these two insecticides on natural enemies of secondary pests when applied against codling moth, Cydia pomonella. Cumulative insect days (CID) of secondary pests and natural enemies were calculated from leaf samples, plant volatile traps, beat trays or cardboard trunk bands. Ratios of natural enemies and prey were also calculated. Results from these field studies demonstrate that applications of chlorantraniliprole can reduce abundance of …