Cyperus
Guides
Bactra
nutsedge borers
Bactra is a genus of small tortricid moths (Lepidoptera: Tortricidae: Olethreutinae) comprising species primarily associated with sedges and nutsedges (Cyperus species). Several species have been investigated as biological control agents for weedy nutsedges, particularly purple nutsedge (Cyperus rotundus). Some species have expanded their host range to agricultural crops, with Bactra bactrana documented as a pest of sweet pepper in Greece. The genus occurs across temperate and tropical regions including Europe, North America, and Southeast Asia.
Diploschizia impigritella
yellow nutsedge moth, five-barred glyphipterid moth
A minute sedge moth with a wingspan of 7–9 mm, described by James Brackenridge Clemens in 1862. Adults are active from early May to early November across much of North America. The larvae are stem borers in yellow nutsedge (Cyperus esculentus), making this species a potential biocontrol agent against this agricultural weed.