to evaluate the effect of metarhizium anisopliae and trichoderma harzianum on root knot nematode (meloidogyne javanica) in tomato, experiments was performed under controlled as well as greenhouse conditions. volatile and non-volatile tests showed that there is no inhibitory effect against every one of each biocontrol agents. on the larval mortality and inhibition of egg hatching, a laboratory t...

b a ckground: the protective effect of two isolates of an entomopathogenic fungus, metarhizium anisopliae (demi 002 and iran 437c) on the adult stage of varroa destructor was evaluated in comparison with fluvalinate strips in the field. m e t hods: a total of 12 honey bee colonies were provided from an apiculture farm. the selected hives were divided into 4 groups (3 hives per group). the first...

Strains of insect-pathogenic fungi with high virulence toward certain pest insects have great potential for commercial biological control applications. Identifying such strains has been a central theme in using fungi for biological control. This theme is supported by a persistent paradigm in insect pathology which suggests that the host insect is the predominant influence on the population gene...

entomopathogenic fungi may be affected by pesticides used to protect crop plants. the in vitro compatibility of beauveria bassiana and metarhizium anisopliae with three fungicides and 16 insecticides was evaluated. the formulations of pesticides were tested in three concentrations (mean concentration (mc), half mc and twice the mc). all tested fungicides, at three concentrations, were incompati...

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...

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...

Honeybees, Apis mellifera, show age-related division of labor in which young adults perform maintenance ("housekeeping") tasks inside the colony before switching to outside foraging at approximately 23 days old. Disease resistance is an important feature of honeybee biology, but little is known about the interaction of pathogens and age-related division of labor. We tested a hypothesis that old...