2026-09-20T22:39:49Zhttps://api.mountainscholar.org/server/oai/request

oai:mountainscholar.org:10217/2434612026-02-24T12:08:41Zcom_10217_100532com_10217_100000com_10217_100336com_10217_100303col_10217_100538col_10217_100349

Davidson, Silas Andrew, author Peairs, Frank, advisor Hein, Gary, committee member Khosla, Rajiv, committee member Holtzer, Thomas, committee member 2026-02-23T19:19:22Z 2005 https://hdl.handle.net/10217/243461 https://doi.org/10.25675/3.026289 Site-specific insect management has the potential to make pest management more efficient, but has yet to be implemented. One method of implementing site-specific management would be to make decisions at the management zone level. Management zones are homogenous subregions within a field that can be managed in a similar manner. No studies have yet related insect damage to management zones. In this study site-specific management zones (SSMZ) defined by yield potential were used with the purpose of determining whether arthropod damage differs across SSMZ. The influence of water and nitrogen levels were also analyzed. The study was conducted in a com (Zea mays L.) agroecosystem at Colorado State University's Agricultural Research, Development, and Education Center (ARDEC) near Fort Collins, Colorado from 2002 to 2004. Four common arthropod pests of com were studied: European com borer (Ostrinia nubilalis [Hübner]), western com rootworm (Diabrotica virgifera virgifera [Leconte]), western bean cutworm (Richia albicosta [Smith]), and Banks grass mite (Oligonychus pratensis [Banks]). Infestations of each pest were created within each SSMZ by artificially infesting pests or manipulating natural populations. Damage for western com rootworm and Banks grass mites was greater in high yielding areas. European com borer had differential survival across SMMZ. Differences in damage for western bean cutworm were unclear. The results indicated that arthropod damage for some pests did differ among SSMZ and therefore site-specific management might be beneficial. doctoral dissertations English eng Colorado State University. Libraries 2000-2019 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. Per the terms of a contractual agreement, all use of this item is limited to the non-commercial use of Colorado State University and its authorized users. entomology agronomy Arthropod damage in corn across site-specific management zones and differing water and nitrogen levels Text Doctor of Philosophy (Ph.D.) Doctoral Bioagricultural Sciences and Pest Management Colorado State University This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). open.access