This results from vasoconstriction of the blood vessels especially in the extremities, and causes a gangrenous condition.
Festuca rubra | Festuca | Phalaris arundinacea | Festuca arundinacea | Festuca glauca | Festuca valesiaca | Festuca californica |
The larvae feed on the stems of various grasses, including Gramineae, Phleum and Alopecurus species, Triticum aestivum, Secale cereale, Elytrigia repens, Elymus arenarius, Dactylis glomerata and Festuca arundinacea.