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Conidia of Beauveria bassiana and Metarhizium spp. smeared on glass slides were assayed for their responses to irradiation with weighted 312-nm UV-B and 365-nm UV-A at gradient doses of 0.005–1.1 and 1.0–18.0 J cm−2, respectively. All inverted, sigmoid dose–survival trends showed good fit to a survival model (r2 ≥ 0.97), yielding respective UV-B LD50s of 0.23–0.59 and 0.05–0.65 J cm−2 for 24 B. bassiana...
Surveys of entomopathogenic fungi of aphids in South Africa were conducted from 1995 through 1998. A total of eight species of fungi known to infect and kill aphid hosts were collected, including six Entomophthorales and two Hyphomycetes. The Entomophthorales included Pandora neoaphidis, Conidiobolus thromboides, C. obscurus, C. coronatus, Entomophthora planchoniana, and Neozygites fresenii. The two...
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