Full TGIF Record # 160105
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DOI:10.1603/029.102.0520
Web URL(s):http://www.bioone.org/doi/full/10.1603/029.102.0520
    Last checked: 11/19/2013
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http://www.bioone.org/doi/pdf/10.1603/029.102.0520
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Publication Type:
i
Refereed
Author(s):Mashtoly, Tamer A.; El-Zemaity, Mohamed El-Said; Hussien, Mohamed I.; Alm, Steven R.
Author Affiliation:Mashtoly, El-Zemaity and Hussien: Plant Protection Department, Faculty, Agriculture, Ain Shams University, Cairo, Egypt; Alm: Department of Plant Sciences and Entomology, University of Rhode Island, Kingston, RI
Title:LC and LD50 values of Bacillus thuringiensis serovar japonensis strain Buibui toxin to oriental beetle and northern masked chafer larvae (Coleoptera: Scarabaeidae)
Section:Horticultural entomology
Other records with the "Horticultural entomology" Section
Source:Journal of Economic Entomology. Vol. 102, No. 5, October 2009, p. 1891-1895.
Publishing Information:Lanham, MD: Entomological Society of America
# of Pages:5
Related Web URL:http://www.bioone.org/doi/abs/10.1603/029.102.0520
    Last checked: 11/19/2013
    Notes: Abstract only
Keywords:TIC Keywords: Bacillus thuringiensis; Bioassay; Biological control organisms; Cyclocephala borealis; Exomala orientalis; LC50; LD50; Scarabaeidae; Soil analysis
Abstract/Contents:"Bacillus thuringiensis serovar japonensis strain Buibui has the potential to be an important control agent for pest scarabs. Bioassays were designed to test B. t. japonensis against two of the major turf and ornamental scarab pests infesting turfgrasses and ornamentals and to serve as a basis for further tests against other scarab pests. LC and LD50 values of B. t. serovar japonensis strain Buibui toxin and spores were determined by four different bioassays for the oriental beetle, Anomala orientalis (Waterhouse), and northern masked chafer, Cyclocephala borealis Arrow. Oriental beetle larvae were bioassayed in autoclaved and nonautoclaved soil from where they were collected (Kingston, RI [native]), in nonautoclaved soil from where the northern masked chafer larvae were collected (Groton, CT [foreign]), and per os. Northern masked chafer larvae were bioassayed in autoclaved and nonautoclaved soil from where they were collected (Groton, CT [native]), in nonautoclaved soil from where the oriental beetle larvae were collected (Kingston, RI [foreign]) and per os. LC50 values of 3.93 μg toxin/g autoclaved native soil, 1.80 μg toxin/g nonautoclaved native soil, and 0.42 μg toxin/g nonautoclaved foreign soil and an LD50 value of 0.41μg per os were determined at 14 d for A. orientalis. LC50 values of 588.28 μg toxin/g autoclaved native soil, 155.10 μg toxin/g nonautoclaved native soil, 265.32 μg toxin/g nonautoclaved foreign soil, andLD50 of 5.21μg per os were determined at 14 d (soils) and 10 d (per os) for C. borealis. There were significant differences in LC50 values for oriental beetles in autoclaved, nonautoclaved native soil and nonautoclaved foreign soil. There were significant differences in LC50 values for northern masked chafers in autoclaved and nonautoclaved native soil. B. t. japonensis can be applied now for control of oriental beetles at rates that are economically competitive with synthetic chemicals. If we can determine the component of nonautoclaved soil that enhances the activity of toxin, it may be possible to lower the rates of toxin needed for control to more economical levels for more difficult to control species such as the northern masked chafer."
Language:English
References:23
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mashtoly, T. A., M. E.-S. El-Zemaity, M. I. Hussien, and S. R. Alm. 2009. LC and LD50 values of Bacillus thuringiensis serovar japonensis strain Buibui toxin to oriental beetle and northern masked chafer larvae (Coleoptera: Scarabaeidae). J. Econ. Entomol. 102(5):p. 1891-1895.
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DOI: 10.1603/029.102.0520
Web URL(s):
http://www.bioone.org/doi/full/10.1603/029.102.0520
    Last checked: 11/19/2013
    Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1603/029.102.0520
    Last checked: 11/19/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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