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Full-Text Articles in Life Sciences

Pentatomidae (Hemiptera: Heteroptera: Pentatomidae) Captured On Purple Prism Traps Deployed For Detection Of Emerald Ash Borer (Agrilus Planipennis) (Coleoptera: Buprestidae) In Minnesota, Daniela T. Pezzini, Mitch Haag, James Walker, Robert L. Koch Aug 2018

Pentatomidae (Hemiptera: Heteroptera: Pentatomidae) Captured On Purple Prism Traps Deployed For Detection Of Emerald Ash Borer (Agrilus Planipennis) (Coleoptera: Buprestidae) In Minnesota, Daniela T. Pezzini, Mitch Haag, James Walker, Robert L. Koch

The Great Lakes Entomologist

The observation of bycatch from insect trapping programs, though often considered bothersome, may hold value for ecological and taxonomic studies. In Minnesota, a large trapping survey consisting of pheromone-baited purple prism traps, has been conducted for early detection of Agrilus planipennis, the emerald ash borer. Stink bugs (Heteroptera: Pentatomidae), which are pests of increasing importance in the North Central U.S., were observed to be captured by these traps. The objective of this study was to use trap bycatch from the A. planipennis traps for further documentation of the abundance and diversity of Pentatomidae in Minnesota. In 2011 and 2012, 4,401 …


Japanese Beetles’ Feeding On Milkweed Flowers May Compromise Efforts To Restore Monarch Butterfly Habitat, Adam M. Baker, Daniel A. Potter Aug 2018

Japanese Beetles’ Feeding On Milkweed Flowers May Compromise Efforts To Restore Monarch Butterfly Habitat, Adam M. Baker, Daniel A. Potter

Entomology Faculty Publications

The eastern North American migratory population of monarch butterflies (Danaus plexippus) is in serious decline. Habitat restoration, including adding millions of host plants to compensate for loss of milkweed in US cropland, is a key part of the international conservation strategy to return this iconic butterfly to sustainable status. We report here that Popillia japonica, a polyphagous, invasive beetle, aggregates and feeds on flowers of Asclepias syriaca, the monarch’s most important larval food plant, reducing fruiting and seed set by >90% and extensively damaging milkweed umbels in the field. The beetle’s ongoing incursion into the monarch’s …


Reference Gene Selection For Rt-Qpcr Analysis In Harmonia Axyridis, A Global Invasive Lady Beetle, Xiaowei Yang, Huipeng Pan, Ling Yuan, Xuguo Zhou Feb 2018

Reference Gene Selection For Rt-Qpcr Analysis In Harmonia Axyridis, A Global Invasive Lady Beetle, Xiaowei Yang, Huipeng Pan, Ling Yuan, Xuguo Zhou

Entomology Faculty Publications

Harmonia axyridis is a voracious predator, a biological control agent, and one of the world most invasive insect species. The advent of next-generation sequencing platforms has propelled entomological research into the genomics and post-genomics era. Real-time quantitative PCR (RT-qPCR), a primary tool for gene expression analysis, is a core technique governs the genomic research. The selection of internal reference genes, however, can significantly impact the interpretation of RT-qPCR results. The overall goal of this study is to identify the reference genes in the highly invasive H. axyridis. Our central hypothesis is that the suitable reference genes for RT-qPCR analysis …


Coleopteran Communities Associated With Forests Invaded By Emerald Ash Borer, Matthew B. Savage, Lynne K. Rieske Feb 2018

Coleopteran Communities Associated With Forests Invaded By Emerald Ash Borer, Matthew B. Savage, Lynne K. Rieske

Entomology Faculty Publications

Extensive ash mortality caused by the non-native emerald ash borer alters canopy structure and creates inputs of coarse woody debris as dead and dying ash fall to the forest floor; this affects habitat heterogeneity; resource availability; and exposure to predation and parasitism. As EAB-induced (emerald ash borer-induced) disturbance progresses the native arthropod associates of these forests may be irreversibly altered through loss of habitat; changing abiotic conditions and altered trophic interactions. We documented coleopteran communities associated with EAB-disturbed forests in a one-year study to evaluate the nature of these changes. Arthropods were collected via ethanol-baited traps on five sites with …


The Invasive Med/Q Bemisia Tabaci Genome: A Tale Of Gene Loss And Gene Gain, Wen Xie, Xin Yang, Chunhai Chen, Zezhong Yang, Litao Guo, Dan Wang, Jinqun Huang, Hailin Zhang, Yanan Wen, Jinyang Zhao, Qingjun Wu, Shaoli Wang, Brad S. Coates, Xuguo Zhou, Youjun Zhang Jan 2018

The Invasive Med/Q Bemisia Tabaci Genome: A Tale Of Gene Loss And Gene Gain, Wen Xie, Xin Yang, Chunhai Chen, Zezhong Yang, Litao Guo, Dan Wang, Jinqun Huang, Hailin Zhang, Yanan Wen, Jinyang Zhao, Qingjun Wu, Shaoli Wang, Brad S. Coates, Xuguo Zhou, Youjun Zhang

Entomology Faculty Publications

Background: Sweetpotato whitefly, Bemisia tabaci MED/Q and MEAM1/B, are two economically important invasive species that cause considerable damages to agriculture crops through direct feeding and indirect vectoring of plant pathogens. Recently, a draft genome of B. tabaci MED/Q has been assembled. In this study, we focus on the genomic comparison between MED/Q and MEAM1/B, with a special interest in MED/Q’s genomic signatures that may contribute to the highly invasive nature of this emerging insect pest.

Results: The genomes of both species share similarity in syntenic blocks, but have significant divergence in the gene coding sequence. Expansion of cytochrome P450 monooxygenases …


Host Plants Of Spodoptera Frugiperda (Lepidoptera: Noctuidae) In The Americas, Débora G. Montezano, Alexandre Specht, Daniel Ricardo Sosa-Gómez, Vânia F. Roque-Specht, José Carlos Sousa-Silva, Silvana V. De Paula-Moraes, Julie A. Peterson, Thomas Hunt Jan 2018

Host Plants Of Spodoptera Frugiperda (Lepidoptera: Noctuidae) In The Americas, Débora G. Montezano, Alexandre Specht, Daniel Ricardo Sosa-Gómez, Vânia F. Roque-Specht, José Carlos Sousa-Silva, Silvana V. De Paula-Moraes, Julie A. Peterson, Thomas Hunt

Department of Entomology: Faculty Publications

The fall armyworm, Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae), is the most important noctuid pest in the Americas and has recently become an invasive pest in Africa. A detailed record of S. frugiperda’s host plants is essential to better understand the biology and ecology of this pest, conduct future studies, and develop Integrated Pest Management programmes. In this study, we collected and systematically arranged the fragmented bibliographic information on S. frugiperda feeding records. Furthermore, we registered new records of host plants for S. frugiperda based on eight years of surveys in Brazil. The literature review and surveys resulted in …