International Journal of Zoology Studies

International Journal of Zoology Studies


ISSN: 2455-7269

Vol. 1, Issue 6 (2016)

Pathogenicity of Metarhizium anisopliae on larvae of fall webworm, Hyphantria cunea (Drury) (Lepidoptera: Arctiidae) at different temperatures

Author(s): Onur Aker, Rahman Kushiyev
Abstract: The fall webworm, Hyphantria cunea (Lepidoptera: Arctiidae) is a dangerous and destructive pest for forest, fruit trees and ornamental plants. Insecticides are successful to reduce population of this pest, but they cause environmental pollution. In this study, the virulence efficacy of M. anisopliae was determined on the fourth instar larvae of H. cunea under laboratory conditions. 1×106 and 1×108 conidial suspensions of M. anisopliae grew at 20, 25 and 30°C temperatures. 1×108 conidial suspensions of M. anisopliae were the most efficacious in controlling larvae of H. cunea at spraying method, especially at 30°C with 100 % mortality after 9 days of treatment. 1×108 conidial suspensions of M. anisopliae more efficacious in controlling larvae of H. cunea at 20 and 25°C (63% and 84%) than 1×106 conidial suspensions of M. anisopliae at 20, 25 and 30°C (34%, 46% and 72%) after 9 days of treatment. This study showed that isolate of M. anisopliae has virulent and highly potential for biological control on larvae of H. cunea.
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