Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"stink bugs"”.
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Trophic and Competitive Interactions among Egg Parasitoids of Stink Bugs
… the introduction of the exotic brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae). The objective of this thesis is to enhance the understanding of Pentatomidae-Scelionidae host-parasitoid interactions from a behavioural ecology perspective, focusing on factors influencing …
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Identification and Functional Characterization of Sesquiterpene Pheromone Biosynthetic Genes in Stink Bugs (Pentatomidae)
The stink bugs, (Pentatomidae) harlequin bug (Murgantia histrionica), brown marmorated stink bug (Halyomorpha halys), and southern green stink bug (Nezara viridula) are significant agricultural pests both in the United States and globally. The aggregation or sex pheromones produced by these insects …
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Factors Influencing Behavior of Overwintering Brown Marmorated Stink Bugs (Halyomorpha halys) in Human Dwellings
The brown marmorated stink bug (Halyomorpha halys) (Stål) is known for overwintering in human homes. Studies were conducted to understand the behavior of adult bugs in response to characteristics of potential overwintering structures including gap sizes, light, and presence of dead conspecifics. In …
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Evaluation of injury and management strategies for stink bugs (Heteroptera: Pentatomidae) on cotton, Gossypium hirsutum L.
The effects of brown stink bug, Euschistus servus (Say), and southern green stink bug, Nezara viridula (L.), feeding on pre-flowering, flowering, and senescing cotton, Gossypium hirsutum L., plants were evaluated in field studies. Vegetative stage seedlings and flower buds (squares) were not …
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Behavior of and Crop Injury Induced by Native and Exotic Stink Bugs in Mid-Atlantic Soybean
… to determine if the current thresholds for stink bugs in soybean (one bug per 0.3 row m) need to be adjusted based on current soybean production practices and species present. Several soybean development stages were infested by two native stink bug species for three weeks using small cages …
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The Influence of Thermal and Physical Characteristics of Buildings on Overwintering Brown Marmorated Stink Bugs (Halyomorpha halys)
… for pest species. The brown marmorated stink bug, Halyomorpha halys (Stål), causes household nuisance pest problems because of its habit of using human homes as winter refuges. Studies were conducted to understand behaviors and characteristics relevant to this problem, including response …
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Integrated Multiple-tactic Management of the Redbanded Stink Bug on Soybeans in Louisiana
Stink bugs (Hemiptera: Pentatomidae) are major pests of soybeans in Louisiana and heavy infestations often lead to economic losses. The stink bug species complex has changed in the past decade with the prevalence of the invasive redbanded stink bug, Piezodorus guildinii (Westwood), which causes …
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Stink bug-Fusarium interactions and mitigation of associated mycotoxin contamination of corn in the mid-Atlantic, U.S.
Stink bugs, including native brown stink bug (Euschistus servus) and invasive brown marmorated stink bug (Halyomorpha halys), cause damage to a variety of crops including field corn (Zea mays). Frequency and size of stink bug infestations have increased in corn fields in the Mid-Atlantic U.S., and …
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Biology and pest status of brown marmorated stink bug (Hemiptera: Pentatomidae) in Virginia vineyards and raspberry plantings
The brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is an invasive insect from Asia that has recently become a major pest of agricultural crops and a nuisance to home and business owners in the Mid-Atlantic U.S. Since 2010, H. halys has been reported in many …
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The Alydidae (Broad-Headed Bugs) of Virginia and Their Pest Management in Edamame
… such as novel pests. The broad-headed bugs (Hemiptera: Alydidae), a relatively insignificant pest of conventional soybean, have been observed in high numbers on edamame in Virginia. Their piercing-sucking feeding may produce dark marks on edamame beans that could result in economic …
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Aggregation Pheromone Biosynthesis and Engineering in Plants for Stinkbug Pest Management
Stinkbugs (Pentatomidae) and other agricultural pests such as bark beetles and flea beetles are known to synthesize terpenoids as aggregation pheromones. Knowledge of the genes and enzymes involved in pheromone biosynthesis may allow engineering of pheromone biosynthetic pathways in plants to …
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Evaluation of Economic Injury Levels and Chemical Control Recommendations for Rice Stink Bug (Oebalus Pugnax) in Louisiana
… to 2013 to investigate multiple aspects of rice stink bug (RSB) integrated pest management (IPM): insecticide recommendations, sampling efficiency, treatment thresholds, farmer practices, and improved educational tools. The first objective of this research was to compare the efficacies of …
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Evaluation of Rice Stink Bug, Oebalus pugnax (F.), Damage and Monitoring Techniques in Rice, Oryza sativa L., and Grain Sorghum, Sorghum bicolor (L.)
<p>Rice stink bug, Oebalus pugnax (F.), is a serious pest of headed rice, Oryza sativa L. and an occasional pest of heading grain sorghum in the Mid-south. Work from this dissertation focuses on resolving gaps in and knowledge of rice stink bug sampling and management, and attempts to create a …
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Stink bug egg studies in southeastern Virginia: parasitoid survey, and susceptibility and chorion permeability to insecticides
Currently, there is little known about stink bug (Hemiptera: Pentatomidae) eggs, their natural enemies, and their susceptibility to insecticides. A survey of stink bug egg parasitoids was conducted in row crops and vegetables in eastern Virginia. Parasitization was highest in Euschistus servus …
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Techniques for Processing Airborne Imagery for Multimodal Crop Health Monitoring and Early Insect Detection
… to this, two algorithms were created to detect stink bugs on crops with aerial visible spectrum images. The first method used a superpixel segmentation approach and achieved a recognition rate of 93.9%, although the processing time was high. The second method used an approach based upon texture …
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Species survey, monitoring and management of economically important stink bug species in eastern Virginia
Stink bugs are major pests of agricultural crops throughout Virginia and much of the United States. Knowledge of the biology, the species complex, and insecticide susceptibility can improve management. A survey was conducted in Virginia to determine the species complex in soybean and cotton and to …
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Developing an integrated pest management program for edamame in Virginia
… we observed from 2018-2020 were pod feeding stink bug (Hemiptera: Pentatomidae), as well as the diseases like purple seed stain, Cercospora kikuchii, and bacterial pustule, Xanthomonas axonopodis pv. glycines. From 2019-2021 an integrated pest management study was conducted to determine best …
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The Origins of Terpene Infochemicals in Insects: Identification and Evolutionary Analysis of Terpene Synthases in Diverse Lineages
… roles in pheromone biosynthesis in pentatomids (stink bugs) including the invasive and economically critical pests Nezara viridula (Southern green stink bug) and Halyomorpha halys (brown marmorated stink bug). I also performed a comprehensive phylogenetic analysis of TPS genes in species across …
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Nutritional and Medicinal value of the edible stinkbug, Encosternum delegorguei Spinola consumed in the Limpopo Province of South Africa and its host plant Dodonaea viscosa Jacq. var. angustifolia
… both economic and cultural factors. The edible stink-bug (Encosternum delegorgueiSpinola), local name “thongolifha” is consumed by the Venda tribe in Limpopo Province of South Africa. Thongolifha is important to the Venda tribe in terms of culture, nutrition and economical value. They eat it raw …