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Pathogenicity of Beauveria bassiana to Bemisia tabaci (gnnandius) (homoptera: aleyrodidae) [electronic resource].

By:

Aly, Safaa H

Language: English Summary language: Arabic Description: p.1453-1462Other title:

التأثير الممرض للفطر Beauveria bassiana على الذبابة البيضاء Bemisia tabaci [Added title page title]

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Mansoura University journal of agricultural sciences, 2003 v. 28 (2) [electronic resource].

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In: Mansoura University Journal of Agricultural Sciences 2003.v.28(2)Summary: Present test reported successful infection by Beauveria. Bassiana against the whitefly, Bemisia. Tabaci. The fungus tested for its pathogenicity to the third instar nymphs, and tested also against one-and 4-day-old eggs. Also the tests proved a reduction in total protein, fat, and -amylase enzyme in the treated insects. Eggs were found to be immune to infection, but mortality of hatching nymphs reached 80-90%. The rate of hatching nymphs infection depended on the age of which the eggs were treated. Mortality of nymphs recorded on the third day after treatment and LC₅₀ was 1.12 x 10³ and LC₉₀ was 3.8 x 10³ spores/ml.

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Present test reported successful infection by Beauveria. Bassiana against the whitefly, Bemisia. Tabaci. The fungus tested for its pathogenicity to the third instar nymphs, and tested also against one-and 4-day-old eggs. Also the tests proved a reduction in total protein, fat, and -amylase enzyme in the treated insects. Eggs were found to be immune to infection, but mortality of hatching nymphs reached 80-90%. The rate of hatching nymphs infection depended on the age of which the eggs were treated. Mortality of nymphs recorded on the third day after treatment and LC₅₀ was 1.12 x 10³ and LC₉₀ was 3.8 x 10³ spores/ml.

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