Adult cereal leaf beetles found, look out for larvae in wheat soon

cereal leaf beetle larva

Adult cereal leaf beetles have been spotted in a few areas across OH.  Adults do not normally cause yield loss in wheat, but, if present in high numbers, they could lead to heavy larval infestations over the next few weeks.  Adult cereal leaf beetles are shiny, metallic blue and orange and are best found using a sweep net or by walking the field.  Cereal leaf beetle larvae are small, gray and moist, resembling bird droppings, and are easily found on wheat leaves.  Foliar damage on wheat occurs when larvae feed and strip the leaves, causing a “frosted appearance.”  Economic threshold of cereal leaf beetle larvae averages 1 per stem.  As wheat matures, growers should carefully inspect their fields for the presence of cereal leaf beetle larvae. 

cereal leaf beetle adult

About the C.O.R.N. Newsletter

C.O.R.N. is a summary of crop observations, related information, and appropriate recommendations for Ohio Crop Producers and Industry. C.O.R.N. is produced by the Ohio State University Extension Agronomy Team, State Specialists at The Ohio State University and Ohio Agricultural Research and Development Center. C.O.R.N. Questions are directed to State Specialists, Extension Associates, and Agents associated with Ohio State University Extension and the Ohio Agricultural Research and Development Center at The Ohio State University.