Laboratory and field evaluation of imidacloprid against Reticulitermes flavipes (Kollar) and Coptotermes formosanus Shiraki (isoptera:rhinotermitidae) subterranean termites in Texas /
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| Other Authors: | |
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[College Station, Tex.] :
[Texas A&M University],
[2011]
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| Subjects: | |
| Online Access: | Link to OAK Trust copy |
| Abstract: | In one study described herein, 20 privately owned structures were treated with a 0.05% application of imidacloprid (Premise® 75 WSP) in order to control infestations of subterranean termites. All applications were made at 15 L per 3.05 linear m per 0.30 m of depth. Ten structures were infested with Reticulitermes flavipes (Kollar) and ten structures were infested with Coptotermes formosanus Shiraki. All structures were inspected through 42 months post-treatment. Only one structure infested with R. flavipes required post-treatment action. Six structures infested with C. formosanus required post-treatment action. In another study, efficacy data were gathered on Premise® Granules when broadcast over an open field and when utilized as a "spot treatment" for control of subterranean termites infesting structures. Open field grids with active R. flavipes were utilized in this study. Grids measuring 8.53 m x 7.32 m were marked off, in-ground commercial termite monitors were installed, and grids were treated with Premise® Granules. Untreated southern yellow pine surface boards were then placed in grids to determine if Premise® Granules would suppress foraging and feeding on surface boards. Premise® Granules did suppress surface feeding of R. flavipes for 9 months post-treatment, although termites were active throughout the study in in-ground commercial termite monitors within treated grids. In a third study, 10 structures built on monolithic slabs, five received a "spot treatment" with Premise® Granules at points of subterranean termite infestation 0.61 m either side of active exterior subterranean termite mud tubes. Structures were inspected through 12 mo post-treatment. Suppression of R. flavipes was sustained for 8 wks in all treatment replications following application of granules, with failures at 8, 12, and 28 weeks post-treatment. A laboratory trial was initiated to simulate field treatments with Premise® 75 WP 0.10 % AI imidacloprid for treatments of structures. The focus of this research was to investigate the dissipation and translocation of imidacloprid in urban environments. Treated sandy loam soil was added to 19-L buckets. Four different plant species commonly found in urban environments were planted in buckets. Results in these trials indicate that imidacloprid was soluble and that there is leaching. |
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| Item Description: | "Major Subject: Entomology" Title from author supplied metadata (automated record created 2011-08-09 15:09:44). Electronic resource. |
| Physical Description: | 1 online resource. |
| Bibliography: | Includes bibliographical references. |