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Use of entomopathogenic fungi in biological control against sweetpotato whitefly Bemisia tabaci
ŘEHOŘOVÁ, Markéta
The thesis is analyzing effects of selected species and strains of entomopathogenic fungi on the synchronized population of Bemisia tabaci under optimal and sub-optimal conditions. The following species of fungi were used during the experiments: Aschersonia aleyrodis, Lecanicillium lecanii (former Verticillium lecanii), Isaria fumosorosea (former Paecilomyces fumosoroseus) a Beauveria bassiana. There was a experiment of mortality of all these fungi in the frequency of 7, 14, and 21 days, while all these experiments were made under the same conditions (concerning temperature and humidity) in order to keep all the results comparable. In the case of Isaria fumosorosea, the experiment was taken also under sub-optimal conditions in order to compare effectiveness of this significant fungi, both under the optimal conditions (relative air humidity 95-100 %, temperature 25{$\pm$}1°C), and sub-optimal conditons (relative air humidity bellow 75 %, temperature 25{$\pm$}1°C). Greater attention was also given to A. aleyrodis which represents one of the most important fungi on the field of whitefly combat.
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