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| Publication Type:
| Refereed |
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| Author(s): | Kaya, H. K.;
Klein, M. G.;
Burlando, T. M. |
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| Author Affiliation: | Department of Nematology, University of California, Davis, CA 95616, USA; USDA, ARS, Application Technology Research Unit, OARDC, Wooster, OH 44691, USA |
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| Title: | Impact of Bacillus popilliae, Rickettsiella popilliae and entomopathogenic nematodes on a population of the scarabaeid, Cyclocephala hirta |
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| Source: | Biocontrol Science and Technology. Vol. 3, No. 4, 1993, p. 443-453. |
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| Publishing Information: | Abington, Oxfordshire: Carfax Pub. Co. |
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| # of Pages: | 11 |
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| Abstract/Contents: | "Larvae of the scarabaeid, Cyclocephala hirta , are major pests of turfgrass in California. A field test was conducted against third instars that included the following treatments: untreated control; chemical insecticide (bendiocarb); milky disease bacterium (Bacillus popilliae); and entomopathogenic nematodes (Steinernema feltiae and Heterorhabditis bacteriophora). There were no significant differences in population reduction among the treatments, but the larval population in all plots showed a dramatic decline. The C. hirta population had a natural occurrence of milky disease and blue disease caused by Rickettsiella popilliae. The prevalance of blue disease during the course of study averaged < 10% but that of milky disease averaged about 20%. More significantly, the soil from all treatment plots when boiassayed for B. popilliae showed that 67-90% of the larvae became infected with this bacterium. None of the larvae became infected with the blue disease organism. We conclude that B. popilliae was occurring in epizootic proportions in our field tests and was a significantly mortality factor in causing the decline of C. hirta population." |
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| Language: | English |
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| References: | 32 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kaya, H. K., M. G. Klein, and T. M. Burlando. 1993. Impact of Bacillus popilliae, Rickettsiella popilliae and entomopathogenic nematodes on a population of the scarabaeid, Cyclocephala hirta. Biocontrol Science and Technology. 3(4):p. 443-453. |
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