Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1998) 71, 110-112

M. Hafez, H.S. Salama and A. Abdel-Rahman (1998)
Activity of Bacillus thuringiensis isolates on the corn borers, Chilo agamemnon Bles (Crambidae) and Ostrinia nubilalis Hbn (Pyraustidae)
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 71 (6), 110-112
Abstract: The potential activity of different varieties of Bacillus thuringiensis was evaluated against the second instar larvae of the two lepidopterous corn borers Chilo agamemnon and Ostrinia nubilalis. Data on the LC₅₀, slopes, 95% confidence limits and potencies of the tested varieties were determined. With O. nubilalis, Dipel 2X (Bacillus thuringiensis var. kurstaki HD-1) was the most potent and the LC₅₀ was 2.68 µg/g diet. The LC₅₀ for other varieties ranged between 3.12 and 31.95 µg/g. In the case of C. agamemnon, the lowest LC₅₀ was also determined with Dipel 2X being 3.68 µg/g diet; this ranged between 6.2-15.11 µg/g for other tested varieties.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ostrinia nubilalis	Maize/corn (Zea mays)	Egypt
	Chilo agamemnon	Maize/corn (Zea mays)	Egypt
Bacillus thuringiensis (entomopathogen)	Chilo agamemnon	Maize/corn (Zea mays)	Egypt
Bacillus thuringiensis var. kurstaki (entomopathogen)	Ostrinia nubilalis	Maize/corn (Zea mays)	Egypt