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Full-Text Articles in Entomology
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 G. Montezano, Izailda Barbosa Santos, Silvana V. Paula-Moraes, Thomas E. Hunt, Juaci V. Malaquias, Felipe A.D. Bonfin, Paulo V.M. Vieira
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 G. Montezano, Izailda Barbosa Santos, Silvana V. 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 …
Insights From Population Genomics To Enhance And Sustain Biological Control Of Insect Pests, Arun Sethuraman, Fredric J. Janzen, David W. Weisrock, John J. Obrycki
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
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 …
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.
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, …
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
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 …
High Tunnel Pest Management - Thrips, Nick Volesky, Marion Murray
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.