The efficacy of a new virulent Metarhizium anisopliae strain (SRRC 2558) obtained from Coptotermes formosanus in China was evaluated against the eastern subterranean termite, Reticulitermes flavipes and the Formosan subterranean termite, C. formosanus, in the laboratory. This new strain was compared with three other virulent M. anisopliae strains and was found to be highly infectious against te...

The cerambycid beetle Hedypathes betulinus (Klug) (Coleoptera: Cerambycidae) causes severe damage to yerba mate plants (Ilex paraguariensis (St. Hilaire) (Aquifoliales: Aquifoliaceae)), which results in large losses of production. In this study, the pathogenicity of entomopathogenic fungi of the species Beauveria bassiana (Balsamo-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae), Metarhizium ...

Fungal virulence is multifaceted and dependent on multiple factors including the pH of spore suspension. In this study, we accessed effects six values Beauveria bassiana, Metarhizium anisopliae medium for growth, sporulation, mortality sugarcane stalk borer Diatraea saccharalis. The culture fungi was performed onplates containing PDA (Potato Dextrose Agar) medium. Virulence tested in D. sacchar...

This study evaluated the effects of destruxin A on Rhipicephalus (Boophilus) microplus females, since this toxin is one of the likely causes of high mortality induced by the entomopathogenic fungus Metarhizium anisopliae in arthropods. Ticks were immersed or inoculated with different concentrations of destruxin A. Despite the doses applied, there were no deaths or significant alterations in ovi...

El picudo de la guayaba es el principal problema fitosanitario, ocasionando pérdidas del 60% en producción; método control aplicación insecticidas químicos como paratión metílico y malatión. objetivo estudio fue evaluar eficiencia hongos entomopatógenos combinación con diferentes extractos vegetales Conotrachelus dimidiatus. En presente se evaluó efectividad biológica cepas nativas Beauveria ba...

The stress of living conditions, similar to infections, alters animal immunity. High population density is empirically considered to induce prophylactic immunity to reduce the infection risk, which was challenged by a model of low connectivity between infectious and susceptible individuals in crowded animals. The migratory locust, which exhibits polyphenism through gregarious and solitary phase...

Backgound Metarhizium anisopliae is a model for host-pathogen studies due to its ability to infect several different arthropods. The first barrier to accomplish successful host-infection is transverse the host cuticle, which is a rigid chitin-rich structure. To surpass this barrier, the fungus produces several hydrolytic enzymes, among which are chitinases and endo-b-N-acetylglucosaminidases, g...

The susceptibility of Agrilus planipennis Fairmaire (Coleoptera: Buprestidae) to selected strains of the entomopathogenic fungi Beauveria bassiana (Balsamo) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin was evaluated through bioassays with direct immersion or foliar exposure under laboratory conditions. Results showed that A. planipennis adults were susceptible to B. bassiana and ...