TY - SER AU - Aly,Safaa H. TI - Pathogenicity of Beauveria bassiana to Bemisia tabaci (gnnandius) (homoptera: aleyrodidae) KW - Sweetpotato whitefly KW - Biological control KW - Beauveria bassiana N1 - Includes reference N2 - 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 UR - http://nile.enal.sci.eg/EALE/2003/MUJAS/2803/2/1453.pdf ER -