How to Manage Pests
UC Pest Management Guidelines
Black Grass Bug
Scientific name: Irbisia spp.
(Reviewed 2/07, updated 2/07)
In this Guideline:
Black grass bugs are small (0.2 to 0.33 inch long), shiny or grayish black bugs with black or red legs and prominent eyes.
Feeding damage appears as whitish or yellowish patches on the leaves. The association of the insect with these damage symptoms confirms black grass bug damage.
UC IPM Pest Management Guidelines:
Insects and Mites
L. D. Godfrey, Entomology, UC Davis
Acknowledgment for contributions to Insects and Mites:D. Gonzalez, Entomology, UC Riverside
C. G. Summers, Entomology, UC Davis/Kearney Agricultural Center, Parlier