Rice Delphacid Detected In Louisiana For The First Time In >70 years

By Blake Wilson, James Villegas, Stephen Baca, and Tyler Musgrove

LSU AgCenter

An invasive insect pest of rice, the rice Delphacid (Tagosodes orizicolus), has been detected in Louisiana. No adverse impacts on rice have been observed in Louisiana as yet, but the detection is certainly a concern. The inset is a major pest of rice in Texas, particularly late-planted and second crop rice.

Specimens were first detected in July in Tensas Parish. Subsequent surveys detected an infestation in western Calcasieu Parish, but its distribution in the State remains largely unknown. It was not detected during initial observations in other areas of northeast or southwest Louisiana, but its occurrence in those are still being investigated. Producers in Calcasieu and Tensas Parishes should exercise caution to avoid additional spread. Rice straw or hay should not be moved out of these Parishes. Producers in other Parishes that detect possible Delphacid infestations should report the sites to LSU AgCenter extension agents. 

More information on rice delphacid biology and management can be found on the LSU AgCenter website.