Microbial control of the invasive spiraling whitefly on cassava with entomopathogenic fungi

Brazilian Journal of Microbiology

Thangavel Boopathi¹  Palaniappan Karuppuchamy¹  Soibam B. Singh¹  Manickavasagam Kalyanasundaram¹  S. Mohankumar¹  Madhaiyan Ravi¹ 

关键词: Aleurodicus dispersus;    Manihot esculenta;    biocontrol;    entomopathogenic fungi;    mortality;   

DOI  :  10.1590/S1517-838246420141067

来源: SciELO

【 摘 要 】

Abstract The entomopathogenic fungi Beauveria bassiana, Metarhizium anisopliae, Lecanicillium lecanii and Isaria fumosorosea were tested for their efficacy in managing the exotic spiraling whitefly Aleurodicus dispersus (Hemiptera, Aleyrodidae) on cassava (Manihot esculenta) during 2 seasons (2011-2012 and 2012-2013). The fungi I. fumosorosea and L. lecanii exhibited promising levels of control (> 70% mortality of the A. dispersus population). The percent mortality increased over time in both seasons. Application of I. fumosorosea was highly pathogenic to A. dispersus in both seasons compared to the other entomopathogenic fungi. Analysis of the percent mortality in both seasons revealed differences in efficacy between 3 and 15 days after treatment. The season also influenced the effects of the fungi on the A. dispersus population. Thus, entomopathogenic fungi have the potential to manage A. dispersus infestation of cassava.

【 授权许可】

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