Selection of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok. for the control of the mite Mononychellus tanajoa (Bondar)

Abstract

The green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae), is considered to be one of the key pests in cassava, Manihot esculenta Crants, leading to considerable field losses. In this study, ten Beauveria bassiana (Bals.) Vuill. and ten Metarhizium anisopliae (Metsch.) Sorok. isolates were evaluated with regard to their potential as biological control agents against adult M. tanajoa females. The total mortality percentage of M. tanajoa caused by B. bassiana ranged from 13.0 to 97.0%, with confirmed mortality rates extending from 9.0 to 91.0% and LT 50 varying from 4.2 to 17.0 days. The M. anisopliae isolates showed total mortality percentages ranging from 12.0 to 45.0% with confirmed mortality rates extending from 8.0 to 45.0%, and LT 50 varying from 8.

Entomopathogenic Fungi as Biological Control Agents of Phyllocoptruta oleivora (Prostigmata: Eriophyidae) under Greenhouse Conditions

“…The mortalities observed were less than in studies of P. oleivora by Alves et al (2005), who evaluated B. bassiana on citrus rust mite, whereas Barreto et al (2004) and Bugeme et al (2008) evaluated B. bassiana and M. anisopliae on Mononychellus tanajoa Bondar and Tetranychus evansi Baker and Pritchard (both Prostigmata: Tetranychidae), respectively, and Zemek et al (2016) evaluated I. fumosorosea to control Tetranychus urticae Koch (Acari: Tetranychidae), where they found mortality above 90%, at 5, 8, 10, and 15 d after application. This may be due to differences in environmental conditions in the studies.…”

Susceptibility ofTetranychus ogmophallos(Acari: Tetranychidae) toBeauveria bassianaandMetarhizium anisopliae

“…Beauveria bassiana and M. anisopliae were pathogenic to T. ogmophallos, which is the first report on the pathogenicity of these fungi to this mite species. Other studies also have reported the pathogenicity of B. bassiana and M. anisopliae to tetranychid species, such as T. urticae (Alves et al 2002;Tamai et al 2002;Shi & Feng 2009;Moro et al 2011), T. evansi (Wekesa et al 2005), T. kanzawai (Sanjaya et al 2013), Mononychellus tanajoa (Bondar) (Acari: Tetranychidae) ( Barreto et al 2004), and oligonychus yothersi (McGregor) (Acari: Tetranychidae) (Oliveira et al 2002(Oliveira et al , 2004.…”

“…Numerous mite species, including tetranychids, are infected by entomopathogenic fungi, predominantly Entomophthorales (e.g., Neozygites floridana) and Hypocreales (e.g., B. bassiana, Isaria spp. (formerly Paecilomyces), M. anisopliae, Hirsutella thompsonii (Fischer), Cladosporium cladosporioides (Fresen), Cephalosporium diversiphialidum Balazy, and Lecanicillium lecanii species (Zimmermann) [formerly Verticillium lecanii (Zimmermann)]) (Chandler et al 2000;Barreto et al 2004;Oliveira et al 2004;Maketon et al 2008;Bugeme et al 2009;Moro et al 2011;Sanjaya et al 2013;Geroh et al 2015;Lacey 2017;Nakai & Lacey 2017).…”

Control of phlebotomine (Diptera: Psychodidae) leishmaniasis vectors

“…The fungal species that attack several hosts should be favored in control programs because they can be used in several areas, such as Beauveria bassiana stands out (Barreto et al 2004). In Colombia, Warburg (1991) demonstrated that fi lter paper impregnated with B. bassiana conidia increased P. papatasi and Lu.…”