Application of Metarhizium flavoviride (Deuteromycotina: Hyphomycetes) Spores Against the Tree Locust, Anacridium melanorhodon (Orthoptera: Acrididae), in Sudan

Spores of the entomopathogenic fungus Metarhizium flavoviride were applied against the tree locust Anacridium melanorhodon melanorhodon in the field for the first time. The treated areas covered a total of 55 ha in the vicinity of Tendelti in the White Nile State of Sudan. At a dose of 100 g of spores/ha applied in 5 l of oil formulation, the application led to a reduction in population densities of 66-76% after 18 days. Correction of the data with the Henderson/ Tilton formula gave an overall control efficiency of 68%.