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The Tingidae (Hemiptera: Heteroptera) of Southern Central America (with an Emphasis on Costa Rica)
(North Dakota State University, 2018)
The genera of Tingidae of the neotropics are herein diagnosed and a key for their identification is also provided. Five new genera are described from Central America, two from Panama, two from Costa Rica, and one new genus ...
A Faunal Survey of Coleoptera, Hemiptera (Heteroptera), and Lepidoptera Associated with Fraxinus Pennsylvanica Marshall (Oleaceae) in the Red River Valley of Eastern North Dakota
(North Dakota State University, 2014)
The emerald ash borer (Agrilus planipennis; EAB) is an invasive wood-boring beetle causing mortality of ash trees in North America. This project was initiated because of the threat of EAB moving into North Dakota. The main ...
Collection and Analysis of Volatiles of Various Cultivated Sunflower, Helianthus Annuus, (Asteraceae) Germplasm and Investigation of Some Aspects of Host Selection in Adult Red Sunflower Seed Weevil, Smicronyx Fulvus L., (Coleoptera Curculionidae)
(North Dakota State University, 2017)
Plants of sunflower germplasm putatively resistant or susceptible to the red sunflower seed weevil, Smicronyx fulvus (Coleoptera: Curculionidae) were used to test the hypothesis that the volatile composition of these two ...
Pest Management of Wheat Stem Sawfly, Cephus Cinctus Norton (Hymenoptera: Cephidae), in Western North Dakota
(North Dakota State University, 2012)
The wheat stem sawfly, Cephus cinctus Norton, is regarded as a major pest of dryland wheat in the Upper Great Plains. For peak emergence of wheat stem sawfly, the most accurate base was 0 C using air temperature, and then ...
Exploring Effects of Weed Management in Agroecosystems: Arthropods, Soil Properties and Soybean Production
(North Dakota State University, 2014)
Soil-dwelling arthropods contribute to agroecosystems, but it’s unclear how specific taxa respond to weed management practices. Objectives were to explore 1) response of Collembola to weed management in a glyphosate-tolerant ...
Density and Movement of Soybean Aphid, Aphis Glycines (Hemiptra: Aphididae) in Response to Temperature and Resistant Soybean Plants
(North Dakota State University, 2012)
Movement is one way herbivores respond to their host plant, yet the movement of relatively immobile insects has received little attention. We studied how the movement and density of apterous soybean aphids responds to a ...
Aphid Interactions with Environmental Variation in the Field and Lab
(North Dakota State University, 2015)
A basic tenet of ecology is that organisms are affected by both abiotic factors and other organisms; therefore, there is value in understanding interactions in our changing world. Aphids are model organisms for questions ...
The Effects of Abiotic Climate Change Factors on Aphid Life History and Populations
(North Dakota State University, 2015)
While the effects of many abiotic factors associated with climate change have not been extensively studied, work on model organisms is beginning to help predict effects on similar species. Research on climate change has ...
Oviposition Preference and Larval Host Range of the Sugarbeet Root Maggot
(North Dakota State University, 2012)
The sugarbeet root maggot, Tetanops myopaeformis Röder, is native to North America; however, its main crop host, sugarbeet, Beta vulgaris L., was introduced to the continent from Europe. This study involved an investigation ...
Crop and Prairie Grasses Serving as Hosts for the Hessian Fly
(North Dakota State University, 2012)
Insect herbivores typically parasitize a relatively small number of plant species. Host specialization is presumed to be a result of evolutionary arms races, with insect adaptations ultimately restricting host range. Being ...