Bermudagrass Stem Maggot Management: The bermudagrass stem maggot (Atherigona reversura) is a new pest of bermudagrass in Texas and other areas of the United States. This pest can cause problems in bermudagrass pastures. To help you deal with this pest we share with you tips on how to detect the presence of this fly, how to know when to treat and what your treatment options are to manage this pest.