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The biological control of brown soft scale Coccus hesperidum L. (Homoptera: Coccidae) in interior plantscapes
| dc.creator | Stauffer, Robert Stevens | |
| dc.date.accessioned | 2012-06-07T22:46:58Z | |
| dc.date.available | 2012-06-07T22:46:58Z | |
| dc.date.created | 1996 | |
| dc.date.issued | 1996 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S739 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references: 79-97. | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | Interior plantscape pests consist predominantly of a wide variety of species of Homoptera. Soft scale insects appear to account for one quarter to one third of all significant pest problems associated with interior plantscape environments. Brown soft scale, Coccus hesperidum L., is arguably the most common soft scale pest in these locations. The objective of this research project was to assess the potential for reducing C. hesperidum to non-pest status in interior plantscapes using the techniques of classical biological control. Improved methods for rearing C. hesperidum in the laboratory were developed using All Season" squash and Basalla alba, the Malabar spinach. More than a dozen species of encyrfid and aphelinid parasite species were reared from samples taken from naturally occurring California and Texas populations of C. hesperidum. Emerging parasites were screened for successful reproduction on Texas populations of C. hesperidum, and cultures of the most promising species were initiated. Metaphycus alberti (Howard) was chosen for further experimentation because it was found in low density populations in California, its eggs were not encapsulated by the Texas populations of C. hesperidum, it developed reliably, it was gregarious, it had a simple lifecycle, it had a short developmental time, and it was not present in Texas. Controlled comparison field trials using closed, open, and no sleeve treatments were conducted to measure the effect of release of M. alberti on the population dynamics of C. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | entomology. | en |
| dc.subject | Major entomology. | en |
| dc.title | The biological control of brown soft scale Coccus hesperidum L. (Homoptera: Coccidae) in interior plantscapes | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | entomology | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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