Author
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Schroeder, William |
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SIEBURTH, P - U OF FL, IFAS |
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Submitted to: Journal of Nematology
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 6/27/1996 Publication Date: N/A Citation: N/A Interpretive Summary: When surfactants were applied with nematodes for control of citrus root weevil larvae, mortality increased the first week following treatment. Potted plant nurseries are frequently infested with root weevil larvae and when the plants are moved, the insects are spread to new areas. In the past, nurseries with weevils were placed under quarantine and were required to spray with insecticides. The use of surfactants in combination with nematodes is an alternative to pesticide use. Based on our research, regulatory agencies now recommend the use of nematodes in combination with surfactants to eliminate larvae from infested potted plant nurseries. Technical Abstract: A filter paper bioassay was developed for testing the efficacy of nematodes and other agents for control of Diaprepes abbreviatus larvae. Surfactants, with and without Steinernema riobravis, were screened first in the filter paper bioassay and then in a potted citrus seedling study. The results of the two assays were in agreement on the relative merits of the compounds tested. Surfactants increased larval mortality during the shortest times evaluated for both assays. At the longest times evaluated, nematodes alone were equal to treatments of nematodes plus surfactants. |
