Screenhouse trials on the potential of Nosema marucae for the control of Chilo partellus

Publication Type

Journal Article

Journal Name

Entomologia Experimentalis et Applicata

Publication Date

1-1-1992

Abstract

Tests were carried out in a screenhouse to determine the potential of a microsporidian pathogen, Nosema marucae (Microspora: Nosematidae), for the control of the spotted stalk borer, Chilo partellus (Lepidoptera: Pyralidae), on sorghum. Foliar application of an aqueous suspension of N. marucae spores on egg batches pasted on the sorghum plants reduced leaf‐damage in plants in the protected plots, and increased the proportion of plants with fully‐ and partially formed heads compared to unsprayed plots. Further, there was less tunnelling and fewer larvae in the sprayed plots. The pathogen also reduced pest infestation and damage to plants when the plots were infested with newly emerged larvae instead of eggs. N. marucae has a potential to control C. partellus. 1992 The Netherlands Entomological Society

Keywords

biological control, Chilo partellus, egg batches, foliar application, Nosema marucae, sorghum, spotted stalk borer

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